2026-10-20 - Health and Environment Committee

Summary

Based on auto-generated captions; names, numbers and some organization names may be misheard. The captions carry no speaker labels, so some attributions are inferred from context.

Time on topic (from transcript timestamps; approximate, includes side talk):

Topic Minutes Share
Thermal Energy Network Planning 78 57%
District Energy Decarbonization Plans 24 18%
City video clips after the hearing 14 10%
Call to order, roll call, adjournment and pre-roll 11 8%
Boston Thermal Energy Network Feasibility Study 10 7%
  • Tuesday, October 20, 2026.
  • Single-topic hearing: the call was to review the landscape of thermal energy network planning in Cambridge, including the results of the city's geothermal network feasibility study.
  • Four of five members were present (Nolan chairing, Azeem, Al-Zubi, Zusy); McGovern was recorded absent.
  • Public comment was limited to 3 minutes per speaker (three signed up; one spoke by name, one spoke from the room, and one did not appear).
  • No votes other than a voice vote to adjourn.
  • Nolan said afterward she should have called a recess, because she wants to reconvene the group.
  • The recording runs about 2:17; the hearing itself ended about 2:03, and the rest is city public-information clips.

Call to order, roll call, adjournment and pre-roll

4:51-11:04, 2:02:40-2:03:04

  • Chair Nolan read the remote participation notice and set the format: about 10 minutes per presenter, then open discussion in which anyone at the table can question anyone else.
  • Introductions around the table: MIT government relations and campus services staff, the president of Vicinity Energy, the city's Office of Sustainability, HEET, Black Swan Lab, and Deputy City Manager Kathy Watkins. The Chief Climate Officer was expected online; Eversource and the Boston Green Ribbon Commission joined later.
  • Nolan noted the city's earlier application for federal funding was not selected, and that the Climate Crisis Working Group had pushed for this work.
  • Adjourned by voice vote.

Thermal Energy Network Planning

11:04-40:27, 1:06:23-1:44:00, 1:51:52-2:02:40

  • Office of Sustainability (11:04-28:24): a staff member (first name rendered Arena, Arina or Irina) presented the study of a geothermal-based network for an existing Cambridge neighborhood, funded mainly with federal pandemic-relief money and carried out by the engineering firm Salas O'Brien. Land for a borefield was the main limit (38 candidate sites, mostly parks, about an acre needed). Street congestion, a 20-by-20 to 40-foot equipment structure, and above all ownership and operation stopped the team from picking a site; it studied Pacific Street Park in Cambridgeport in depth, near an MIT graduate housing building. A hybrid design (about 99% geothermal) would need about 30 years to recoup capital with today's incentives, and costs would roughly double if recovered through bills alone.
  • HEET and Black Swan Lab (28:24-40:27): Eric Bosworth (for HEET) and Audrey Schulman argued the study answers "what does it look like under these assumptions," not whether a network is viable. Their critiques: only boreholes were considered (the costliest source) rather than wastewater, waste heat or aquifers; Harvard, MIT and Lesley land were not examined; building retrofit costs were counted as extra although large buildings must decarbonize anyway; grid-upgrade savings and customer savings looked understated; the analysis was not shared. Schulman said Cambridge is a "gas island" and suggested picking a site now and issuing a request for proposals with conditions such as flat thermal bills through an energy-as-a-service model.
  • Eversource remarks and ambient-network exchange (1:06:23-1:09:24): Lean Hayek (spelling uncertain) of Eversource's clean technology team introduced herself. Schulman said ambient-temperature networks deliver six to eight units of heat per unit of energy; Vicinity replied that its heat pump runs in the high twos but that affordability, not efficiency, drives adoption.
  • Public comment (1:09:24-1:15:28): The president of GeoMIT (first name Anushka) asked for peer review and transparency on data sources and assumptions, inclusion of MIT and Harvard (almost a third of city emissions), and a role for ordinary residents. Rupal Jain, for the Cambridge chapter of Mothers Out Front, thanked the council and staff and urged exploring sewers, commercial waste heat and the Charles River, planning for the planned Alewife development to be served by a network, and joint long-term planning with Eversource, including gradual gas decommissioning. A third signed-up speaker (Susan Marcott) did not appear and her written comments were not located.
  • Eversource and the Framingham pilot (1:15:28-1:35:58 and 1:42:57-1:44:00): Al-Zubi asked about Eversource's role. Eversource described the Framingham network: about 135 customers, 88 boreholes in three borefields, commissioned December 2024, ratepayer funded through an annual filing with the state utility regulator, and a federally funded expansion that roughly doubles it. Cost so far was about $28 million of roughly $30 million. Eversource now has a new-construction filing pending because retrofits (mold, asbestos, behind-the-meter work) were the biggest cost.
  • Cost debate (1:29:26-1:40:00): Zusy said Black Swan Lab should have been involved in designing the study and asked why the Pacific Street concept might cost $50 to $70 million against Framingham. Staff and consultants said the estimates are early-stage (class five, under 5% design) with wide uncertainty and heavy contingency, with market cost escalation and denser Cambridge streets; the low end is a bit under double Framingham. The Office of Sustainability said the study was meant to test whether a Framingham-style, utility-owned model is repeatable in Cambridge, and that the reports will be shared publicly. Schulman said to call these thermal networks rather than geothermal because boreholes are the most expensive source, and promised cost papers in about two weeks. Bosworth noted a federal 30% investment tax credit (sunsetting from 2032) and possible state incentives.
  • Eversource questions and health costs (1:51:52-2:02:40): Nolan asked how avoided costs and substations factor into Eversource planning and how the gas-island status matters; the Eversource representative said avoided costs enter the utility's non-pipe alternatives analyses and that she would get back to the committee on the rest. Nolan asked whether anyone counts the health costs of gas (asthma). The answer from the table was largely no, not formally; MIT researchers described work quantifying health and jobs benefits of the city's large-scale wind and solar project, and Vicinity said health and sustainability framing helps it raise capital. Schulman suggested a "no regrets" path of putting boreholes under school fields at planned school retrofits, as Providence, Rhode Island is considering.

District Energy Decarbonization Plans

40:27-56:49, 1:44:00-1:51:52

  • Vicinity Energy (40:27-50:38): Kevin Haggerty said Vicinity serves about 71 million square feet through 29 miles of piping in Boston and Cambridge, with a 42 MW electric boiler online since November 2024, a river-source heat pump (reported as the largest in the world, about 38 MW) under construction at its Kendall plant for 2028, and planned thermal storage. He said the heat pump should take the system to about 40% decarbonized in 2028 and over half by 2035, and a second heat pump and a harbor-source unit are in design.
  • MIT (50:38-56:49): Joe Higgins described MIT's district energy system (about 10 million square feet), progress on efficiency and rooftop solar, the Metropolitan Storage Warehouse's waste-heat heat pumps (a third of the life-cycle cost of boreholes), the planned building 39 quantum lab, and a design for a large heat pump plant recovering 30 to 40% of campus heat from its cooling system, with the remaining 60 to 70% expected from a shared Boston network.
  • Follow-up questions (1:44:00-1:51:52): Higgins said the Metropolitan Storage Warehouse and the quantum lab are roughly 98 to 99% fossil free, said MIT is evaluating waste heat from its research reactor's cooling loop, and proposed a delegation to Denmark with city, Boston, Eversource, Engie and state energy officials to settle owner-operator and governance models. Haggerty said adoption speed follows price and that heat pump two was started early because heat pump one is expected to be fully subscribed. Earlier (1:25-1:29), Schulman cautioned that Vicinity is unregulated and its former owner had customer-price problems, urging the city to bargain for long-term affordability when granting use of public rights of way; Vicinity replied that private ownership lets it move quickly and described waste heat from data centers in Kansas City.

Boston Thermal Energy Network Feasibility Study

56:49-1:06:23

  • Lindsay Butler, executive director of the Boston Green Ribbon Commission, joined online to describe a study with about 25 large institutions and property owners, funded by the state clean energy center and the City of Boston. It examines shared thermal sources (Boston Harbor, Fort Point Channel, the Mystic and Charles Rivers and bedrock beneath them) and has five deliverables: thermal supply, distribution, demand, investment opportunities, and regulatory and policy issues.
  • A stakeholder advisory group (including the City of Cambridge, Harvard and MIT) and a technical advisory group (including HEET) guide the work; the timeline for findings was shown but is not readable in the captions.
  • Stated goals: health improvements, jobs, relief from fossil fuel price volatility, lower shared costs, and reduced electric grid strain.

City video clips after the hearing

2:03:04-2:17:21

  • The recording continues with city public-information clips: street sweeping and leaf season, the police department's trauma-informed response to sexual violence, the Storm Steward volunteer drain program, voter registration information (new Election Commission office on Massachusetts Avenue), a history clip about the British landing in East Cambridge in 1775, a Commission on Immigrant Rights and Citizenship message on know-your-rights education, and a restart of the street sweeping clip. None of this is committee business.

Sources

Video

Watch the video

Transcript

These are auto-generated captions; names and numbers may be misheard.

Transcript

01:59Mhm.

04:51>> All right. Uh good morning. It's still

04:54morning.

04:55For some of us, it's um been a long

04:58night.

04:59Um

05:00I am calling today's Health and

05:01Environment Committee meeting to order.

05:03The call of today's meeting is to review

05:05and discuss the landscape of thermal

05:07energy network 10 planning in Cambridge,

05:10including reviewing results from the

05:12Cambridge Network's geothermal

05:13feasibility study. And it will cover

05:15obviously the um

05:16landscape around the area and if we want

05:19the country and world. The first order

05:21of business is a roll call of members

05:22present.

05:24Counselor El-Zoubi.

05:26Present. Vice Mayor Azeem.

05:27Present. Counselor McGovern.

05:30Absent. Counselor Nolan.

05:31>> Present.

05:32>> Present. Counselor Zuse.

05:34Present. Four members present, one

05:36recorded as absent.

05:37>> Thank you, and I believe there is a

05:39representative from the mayor's office

05:40here. He's been in and out, so I

05:41appreciate that the mayor will be here.

05:44Um pursuant to chapter two of the acts

05:45of 2025, I believe I have to read this.

05:48Um adopted by Massachusetts General

05:50Court and approved by the governor, the

05:51city is authorized to use remote

05:52participation at meetings of the

05:53Cambridge City Council and its

05:54committees. Please note the city of

05:56Cambridge audio and video records this

05:57meeting and makes it available to the

05:58public for future viewing. Third parties

06:00may also be audio and video recording

06:01this meeting in addition to having

06:02members of the council participate

06:04remotely. We also have set up Zoom

06:05teleconference for public comment. Each

06:07speaker will have 2 minutes.

06:09Uh if you would like to provide public

06:10comment, please visit the city council

06:12section of the city's webpage.

06:13Instructions for how to sign up are

06:14posted there. You can complete that sign

06:16up procedure. If you are in the room,

06:17feel free to let us know if you have not

06:19signed up to public comment and we'll

06:20add you to the list. You can also email

06:22written comments for the record to the

06:23city clerk. To watch the meeting, please

06:25tune in to channel 22 or visit the open

06:26meeting portal on the city's website.

06:28With that, all of today's votes if any

06:29will be by roll call. And I will

06:31actually, if you have prepared 3

06:32minutes, there's only three people

06:33signed up for public comment. Happy to

06:35have 3 minutes, which is the usual. Uh

06:37which is which is the chair's

06:39prerogative to say that it could be 3

06:40minutes. It really um

06:42So,

06:43with that, um I cannot be more excited

06:47to see this table here. Some of you

06:49know, um

06:51from early understanding of HEAT's work,

06:53we have the founder of HEAT here and a

06:56representative from uh HEAT as well. Um

06:59And then, it is just unbelievably

07:01exciting because those of us in this

07:03field know that it was a key element of

07:06the city didn't application for a for a

07:0810 many years ago. We did not get that

07:10funding, but then the climate crisis

07:11working group, which several members in

07:13this room participated in, said, "Hey,

07:15let's do this." The city has been really

07:16wanting to do it. And since the last few

07:19years just there's been an incredible

07:20explosion of interest and work on 10s

07:23around um around the country. We will

07:25hear about that from the city and also

07:26HEAT and Black Swan Lab. Um at the ICLEI

07:29conference that I was uh at just uh 10

07:32days ago it was in Baltimore, thermal

07:34energy networks were discussed widely

07:36among people being incredibly excited

07:38about it. Really does seem to be a

07:39potentially transformative way for us to

07:42achieve our decarbonization goals. Um

07:45So, I'm really excited. I think what we

07:47should do is just go quick around the

07:48room and introduce who's here because uh

07:51we're going to have to do a little bit

07:52rapid-fire, but we'll see um

07:54cuz I've laid it out. There's about five

07:56uh

07:57groups that will be presenting. We're

07:58trying to keep it to about 10 minutes

08:00each, and we'll see, but if we can go

08:02around uh Vice Mayor Azeem, if you want

08:03to just start us off.

08:07>> Burhan Azeem, Vice Mayor.

08:12>> I'm Sarah Gallop. I'm a director of

08:14government and community relations at

08:16MIT. I'm here along with our associate

08:18director, Analisa Bhatiya, back here.

08:21I'll let uh Joe introduce himself.

08:24>> Hi everyone, Joe Higgins, uh vice

08:26president of campus services and

08:27stewardship uh stewardship at MIT. Um

08:30oversight for our decarbonization plans

08:32and the amazing teams that are working

08:33on that. And we also brought one of our

08:35researchers with us here today, Zach.

08:42>> So, the green light shows up.

08:47>> Hello everybody. I'm Kevin Haggerty. I'm

08:48the president and CEO of Vicinity

08:49Energy. We run the district energy

08:51system that supplies steam and other

08:53energies to Boston and Cambridge.

08:58>> Hi, my name is Irina Key from with the

08:59office of sustainability working as a

09:01building decarbonization planner.

09:07>> Eric Bosworth here um hoping to

09:09communicate with you uh the folks over

09:10at HEET.

09:12>> Audrey Schulman, executive director of

09:14Black Swan Lab.

09:16>> Uh Kathy Watkins, deputy city manager.

09:19>> Ayah Al Zubaydi, city councilor.

09:22>> Kathy Zusi, city councilor.

09:26>> Thank you. And I know uh Chief Climate

09:28Officer Julie Julie Wormser is in a

09:30meeting over at BU. I think I she is

09:32probably available online. Um

09:34and I'm not sure. I know someone from

09:36the Green Ribbon Commission, Boston, did

09:37send in a presentation. I'm not sure if

09:39they're

09:40online um or if they're going to be able

09:43to be here present. And I know someone

09:44from Eversource is also uh hoping to

09:47join either in person or remotely. So,

09:49I'm looking back to our clerk to make

09:51sure if if those people are here that um

09:53we should make sure we promote them so

09:55that they can present. Um

09:58Uh so, I think I'm you know, as I said,

10:00I'm really excited about this. This is

10:02an unbelievably important way for us to

10:04jointly, comprehensively, and hopefully

10:08systematically look at ways that we can

10:09achieve our goals. And as I have said it

10:13many, many times,

10:14if Cambridge and MIT and Eversource and

10:17Vicinity jointly can't move the ball

10:20forward more quickly than the rest of

10:23the world, then we might as well give up

10:25on literally, not to be too dramatic,

10:27but but saving our own health and our

10:30own lives. So, with that, I the agenda

10:32is before you.

10:34Um we're going to start off with the

10:35Office of Sustainability, followed by

10:37Black Swan Lab and Heat, then Vicinity

10:40Energy, MIT will talk about its heat

10:42recovery um plans and campus planning,

10:44and then the Boston

10:47which is the Boston Thermal Energy

10:49Network planning really exciting um

10:52regional feasibility study. Again,

10:53there's so much in the news about this,

10:55about every day practically there's

10:56someone else saying, "Oh, we could

10:57explore this, you know, let's use the

10:58oceans. Let's use thermal energy

11:00somewhere." I just got some email list

11:02I'm on about yet another project. So,

11:04let's start off with Arena.

11:07>> Thank you, Chair Nolan, and to the

11:09committee members for hosting this

11:11session and the presenters. What an

11:12incredible lineup. I appreciate you

11:13moving the needle on clean thermal and

11:16uh sharing what you've learned so far.

11:18Can we share the presentation?

11:32>> And for those of you here, there are a

11:33couple copies of the presentation, I

11:36believe that

11:45>> Thank you.

11:46So, I'm going to dive right in. I know

11:48we're tight on time and really just

11:49focus on giving a really high-level

11:51overview of this work, of the goals and

11:54the findings for the feasibility study

11:56to look at a pilot project. I do want to

11:58note that we have had a in-depth webinar

12:02a couple of weeks ago that really talked

12:03through the process, the methodology,

12:05more of the findings, and the recording

12:07for that webinar is available on our

12:09website. So, I would direct you there if

12:11there's anything that caught your eye

12:13that you want to learn more about that

12:15I'm really just going to kind of glaze

12:16over. So,

12:18the pragmatic question here that the

12:19city was asking was, you know, what

12:20would it take to build a pilot project

12:23for a geothermal-based thermal energy

12:24network in an existing Cambridge

12:26neighborhood.

12:27And we were primarily using and slide,

12:29please.

12:32So, primarily using ARPA funding, the

12:34city brought on Salas O'Brien as the

12:36technical consultant. They are here in

12:38the Zoom meeting with us and can join

12:40for this

12:40>> check. Can those Can you raise your hand

12:42if you can hear Arena? Okay, great.

12:47>> Okay.

12:49So, we brought on Salas O'Brien as the

12:51technical consultant for this project.

12:53They're a leader in designing thermal

12:55energy networks across the US. Trust was

12:58their subcontractor for communications

13:00and engagement. Um, and the team So,

13:04yeah, we can ask any questions to the

13:05rest of the team on the Zoom. Slide,

13:08please.

13:10So, we know that the city has really

13:11been committed to cutting our carbon,

13:13right? We have our net zero goal by

13:152050, and we're making sooner strides on

13:18cutting this carbon pollution. So, where

13:20does our carbon pollution really come

13:22from? And in Cambridge, the answer is

13:24mostly buildings, as you can see in the

13:26the graphic there.

13:28Uh and that is mostly from construction

13:30constructing and operating these

13:31buildings. And when you live in a

13:34historic city in a cold climate, then

13:36heating and cooling these buildings

13:38really takes a lot of energy. So, we

13:40need to change how our energies are

13:42getting their heat. Slide, please.

13:46And uh the city's net zero action plan

13:48really focuses on decarbonization of the

13:50building sector. So, you can see here

13:53the kind of suite of approaches that

13:54we're taking to address new

13:56construction, to um offer community

13:58energy programs, and we've made great

14:00strides in especially the area of new

14:02construction. And this idea of having a

14:06micro district at the time it was called

14:07a micro district uh geo micro district

14:10study for a pilot project came from the

14:13net zero action plan um as a way to look

14:15at these existing neighborhoods.

14:19So, within this So, so that's kind of

14:21where we came to the study itself.

14:23Slide, please.

14:27And I won't dig too deeply into this

14:29now. I want to keep moving, but want to

14:31note that the plan was not the first

14:32time that we've expressed interest in

14:34looking at these kind of neighborhood

14:35scale solutions um leading into the

14:38study. Slide, please.

14:41So, at its core, a thermal energy

14:43network that uses geothermal sources has

14:46four parts. The first is the ground.

14:49Right? As soon as you get below 20 to 30

14:51ft in the ground, um the earth actually

14:53stays steady at about 53° all year

14:56round, no matter what the climate or the

14:58weather is doing outside. So, it is

15:00warmer than the air in the winter, it's

15:02cooler than the air in the summer, and a

15:04really good opportunity to um provide a

15:06source of clean heating and cold.

15:10So, to tap into the thermal energy, we

15:11would drill

15:12uh drill these deep holes between 550

15:15and 850 ft deep. Uh they're called

15:18bores. And usually those those are under

15:20a parking lot or a surface uh

15:23or a or a park. And on the graphic, it's

15:25just behind the subtitles there is the

15:27example.

15:29And then there are pipes that are mostly

15:31filled with water that run from the bore

15:33field through the neighborhood in the

15:35streets to connect to buildings. That

15:38circulates the water at a mild

15:39temperature. It's not going to be hot

15:41like your boiler. And that is called the

15:43distribution network.

15:45And then inside of each building there

15:47would be equipment. So there's a heat

15:48pump that can pull heat from the water

15:51and and then circulate it within the

15:53building.

15:54And then we'd do the opposite kind of

15:55like a heat pump in a residential home

15:57to to flip the direction in the summer

16:01time.

16:02And most buildings would need some kind

16:04of an upgrade to be able to connect such

16:06as new equipment or changes to how this

16:10heat is delivered into rooms like new

16:12duct duct work.

16:14Next, please.

16:16So this idea of shared infrastructure

16:19isn't new, right? There's shared

16:20infrastructure in our streets already.

16:22It would function like our drinking

16:24water where there's a street network and

16:26then an individual connection from the

16:28home or the building to that street.

16:31And in winter most buildings do pull

16:34heat from the network with the exception

16:36in Cambridge especially of buildings

16:38like labs that might have some excess

16:40heat that they could contribute to the

16:42network and continue that in

16:43circulation. Slide.

16:47So it's important to note here that

16:49geothermal bores are not the only source

16:51of heating and cooling for buildings. A

16:54network could draw on a larger source

16:56like like the river, like the Boston

16:58Harbor for example, where there's this

17:00kind of plentiful and cheap source of

17:02energy. And a network could also draw on

17:06existing infrastructure systems like the

17:09you know MBTA. You can sometimes walk

17:10over a a great and feel the heat coming

17:13out of the of the great.

17:15And so

17:18you know, this federally funded project

17:20was really focused on network geothermal

17:22as a pilot that could be replicated as a

17:25solution for existing neighborhoods.

17:27Slide.

17:29And so there are there are lots of

17:31benefits to thermal energy networks. You

17:32may have heard them from some of the

17:34folks at this table before, but I really

17:36just want to highlight a couple here.

17:38One is that thermal energy networks

17:39offer a really high efficiency source of

17:43heat and cool cool and cooling. So, that

17:45energy

17:47is lower than what you would use with

17:48natural gas. And so, we would, you know,

17:51be able to achieve lower building

17:52emissions through a thermal energy

17:54network. And we were really interested

17:56in this idea of being able to have a

17:58neighborhood scale impact, right? We

18:00know that each building individually

18:02will need some kind of upgrade, but the

18:03idea of being able to provide the source

18:05of heat or source the source of energy

18:08in a shared way for a neighborhood was

18:10really appealing to us.

18:12Slide, please.

18:15So, what were you know, we learned a lot

18:18from projects that either are coming

18:19online or all are are already online

18:22like Eversource's demonstration project

18:24in Framingham that are delivering data

18:26kind of in real-time. And what we didn't

18:28know was how this work would specific

18:30specifically

18:32land in Cambridge, right? Like with our

18:34density, with our streets, our land, if

18:37we were to move ahead with a project

18:38tomorrow, what would it look like and

18:39how much would it cost and and who could

18:41operate it? So, these projects are

18:44complicated. So, we wanted to know what

18:46kind of infrastructure we were going to

18:47need, what would it take to really

18:49convert and connect different types of

18:51buildings to a network, and who would

18:54ultimately be the kind of responsible

18:56entity to own and to operate a network.

19:00Slide.

19:02And to kind of reiterate here,

19:03geothermal is not new in Cambridge.

19:05There's a many buildings that we have

19:07that are already using ground source

19:08heat pumps for heating and cooling. This

19:10is a a list especially of some of the

19:12more recent schools. As a school is

19:15renovated, um often this is geothermal

19:17is the best way to achieve our

19:18decarbonization goals as a city.

19:21Slide.

19:23Uh and this is just a kind of tease of

19:25the work that Salas O'Brien has been

19:26involved with around the country um that

19:28they could speak to.

19:30Slide.

19:33So, knowing that there are many

19:34different ways to configure a thermal

19:36energy network, our goal for this

19:37project was really to find the best site

19:40uh for a existing neighborhood that

19:42really represents Cambridge um and could

19:44be scaled or replicated elsewhere and

19:46potentially tie into a bigger network

19:49like the one that we're talking about

19:50for Boston.

19:51So, Salas pretty quickly identified that

19:54the land for the borefield was the major

19:56limiting factor.

19:57Uh and we started out with these 38

19:59sites that kind of met that first filter

20:01sweep and then narrowed them down uh for

20:04a deeper analysis based on, you know,

20:06what is the land currently used for?

20:08What might be the impact to the

20:09community of a project like this? Who's

20:11around? So, which uh building owners,

20:14which anchor institutions are around the

20:16site that could who are bigger energy

20:18users that would be able to um tie in

20:21and interested to tie in.

20:22And then we looked at the energy

20:23balance, right? So, residential areas

20:26mostly need heat in the winter. They're

20:28not the ones with the the waste heat

20:30coming back into the system.

20:32So, the more suitable sites here had a

20:34more balanced energy load, which is

20:36really important for geothermal.

20:38And you will notice here, even though

20:39it's a high-level map, it's mostly, you

20:41know, mostly seeing parks as fitting

20:43these criteria cuz a network that is

20:45designed uh to serve a neighborhood is

20:47is looking at about an acre of land. Uh

20:50and in Cambridge, we know that these

20:51private parking lots or open spaces are

20:54unlikely to remain as open spaces or

20:57parking lots for the long term. Cuz when

20:59we think about an thermal energy

21:00network, we're thinking minimally of a

21:0150-year asset. Lasts a long time.

21:06And um

21:07at in this map, you know, green is

21:08representing a more favorable site for a

21:11pilot project and the orange represents

21:13a less suitable site. Slide, please.

21:18So, the main lessons from this site

21:20selection is that, you know, our our

21:22streets and our land they're they're

21:23busy. They've they've already got a lot

21:25of jobs. And so, several sites we found

21:28maybe technically feasible from an

21:29engineering perspective, but we weren't

21:31ready to move forward on any of them

21:33kind of due to these reasons on the

21:34screen. So, you know, one is land. The

21:37land doesn't exist in a vacuum, right?

21:38They're

21:39existing the kind of context of all

21:41these other users and I'm serving

21:43community needs.

21:45Surface parking lots that are changing

21:46over time to respond to other community

21:48priorities like the development of

21:50housing, for example.

21:52And streets. So, the space under our

21:55streets has a lot in it. There's gas,

21:58there's water, sewer, storm water,

22:00electric, telecommunications lines. You

22:02know, that's not a that's not a big deal

22:03to our DPW in the sense that our DPW

22:06deals with building in congested streets

22:09all the time. Um, but what it does do is

22:11kind of limit the direction that a

22:12thermal energy network could go in and

22:14complicate complicates navigating

22:16through the streets to the buildings, as

22:18well. So, think about, you know, a

22:21project that is north of Mass Ave

22:23couldn't couldn't move south of Mass Ave

22:25because the red line is there. And

22:26there's all these like big streets that

22:28have larger pieces of infrastructure

22:30that are harder to move around.

22:33And then there's also a structure that

22:35would be needed for a thermal energy

22:36network. It could be underground it

22:37could be placed underground at higher

22:40cost, but otherwise would need about 20

22:42to to a 20 by 20 to 40 foot structure to

22:46site somewhere.

22:48And there are some policy issues, as

22:51well, but really these were the main the

22:52main focuses. I think the ownership and

22:54operations was the one that really

22:56stopped us in our track here, which is

22:57thinking about, you know, who is set up

23:00to run this and to build this. Um you do

23:04need alignment across all private

23:06property owners uh because every

23:08building um would need some level of

23:09conversion and they're on different

23:11timelines, right? So, a building that

23:12was retrofit 5 years ago isn't going to

23:15have equipment that reaches end of life

23:16for another, you know, 10 15 years. Um

23:19so, how do we coordinate all of the

23:21private property owner needs um together

23:24on one around one site?

23:26And then, you know, for economics, who

23:28is going to pay for the project? That

23:30might be different from who be able who

23:31is able to access the savings from a

23:34project moving forward.

23:36So, instead of just picking a single

23:38site to tell the public about and to

23:40advance into construction, uh we ended

23:43up choosing one set one location to

23:45study in greater depth.

23:47Slide, please.

23:50So, that site is Pacific Street Park.

23:52It's located in Cambridge Port um as

23:54shown in the map with an MIT graduate

23:57housing building um just to the to the

24:00west there. Slide.

24:03And we chose this space because it has

24:06um several of the elements we found to

24:08be really interesting to research. There

24:10is space at the park and the dog park

24:12for the bore fields. There is a willing

24:15anchor institution that is nearby that

24:18um you know, could could support the and

24:20take on the energy from the site. And

24:24then, we also were curious about looking

24:26at rights of way. Really, what would it

24:28take to build a bore field in a linear

24:31fashion through, say for example, the

24:33bike path path, Waverly path, or some

24:35low-volume streets, Tudor Street and

24:37Emily Street here in this example. Uh we

24:39also liked that there was this mix of

24:41commercial buildings and residential

24:43buildings so that we could better

24:45understand what it would take to do

24:46these building conversions for different

24:48types and kind of classes of building.

24:51Slide.

24:54Um so, from here,

24:57um Salas had done a deep analysis of

24:59both the buildings and the

25:01infrastructure. This is a cost now or

25:03cost estimate

25:04that looks at the the cost for

25:07a hybrid project. And so, that is

25:10leaving the kind of final bit of the

25:12hottest and the coldest days unanswered

25:15as kind of the best fit for this site.

25:17So, this is we're calling it a 99%

25:20geothermal with that last 1% being the

25:22either the existing equipment or to be

25:24electrified over time.

25:26So, looking at the lowest possible cost

25:28to see how it could work, we found that

25:30most of the cost would really be for

25:31converting those buildings themselves.

25:34And then some entity would need to take

25:35on the development and the operation of

25:37the network.

25:39Slide.

25:41So, there does need to be some way to

25:43pay back the capital costs of the

25:44project. And this is an if, right? So,

25:46if this moves forward tomorrow and if

25:49we're looking at this conceptual site

25:51with just the incentives that are

25:53available today, then the you know, it

25:56would take 30 years to recoup the costs

25:59of the capital. And if the entity were

26:01to recoup those costs through bills

26:03alone, then the costs would double.

26:06Slide.

26:09So, this is kind of back to our starting

26:10question is what would it take to build

26:12this thermal energy network in

26:13Cambridge? The answer is that a lot of

26:15the puzzle pieces have to come together

26:17at the same time. So, the four general

26:19categories that we've distilled this

26:21down to and there is a more complicated

26:23puzzle with a the elementary to middle

26:26school number of pieces that we can find

26:28online.

26:30But really thinking about these

26:31categories as the place, right? So,

26:33looking for the right site that

26:36and the right source and the land to

26:38reach it, making sure that there's room

26:40under the streets, making sure that

26:41there's anchor customers that can tie

26:43in, that who want to join and a good

26:45balance of heating and cooling. And then

26:47the money, right? So, so the capital to

26:50build the actual project itself, a

26:52revenue model that could operate the the

26:56thermal energy network, a way to capture

26:58benefits that right now there's not a

26:59good opportunity to do. Like is there

27:03any savings in delaying, deferring, or

27:06obviating the need for a grid upgrades?

27:08Right now we can't we there isn't a way

27:10to turn that into cash for the project.

27:12And building owners

27:14ready to convert when their equipment is

27:16due for replacement. No falls into that.

27:19When do you pay? When do you really need

27:20to have these renovations

27:23independent of a thermal energy network

27:25project?

27:26The market is another puzzle piece here.

27:28We're really thinking about, you know,

27:30who the local drillers are. Are there

27:32HVAC workers that could do this? Is

27:33there equipment, commercial heat pump

27:35equipment for example,

27:37that can serve the needs of these

27:38buildings?

27:40And who really would be the entity that

27:42could manage the building conversions?

27:45And then the last kind of puzzle piece

27:46we have here as policy. There are some,

27:48you know, state policies that do offer a

27:51pathway forward, but they do add

27:53additional

27:54administrative and kind of legal process

27:55to get approval for

27:57using an open space for geothermal just

28:00like we've the city has actually had

28:02experience in for some of the school

28:03projects that we've had.

28:06So those are the puzzle pieces. I think

28:08that is the last slide.

28:10Maybe we can one more. Oh, here we go.

28:12What's that?

28:13Oh, okay. So So this is just showing

28:16some of the factors that kind of make it

28:17more possible and more difficult to move

28:20forward with a geothermal based thermal

28:21energy network. Thank you.

28:24>> Thank you. I want to note Harvard has a

28:25has several buildings that are thermal

28:27energy networks as well and we'll hear

28:28from MIT later about their plans. I want

28:31to turn it over to

28:33Eric and Audrey. I'm not sure which of

28:35the two of you want to go first, but

28:38let's

28:40>> Thank you. I'm happy to just take a

28:41couple of minutes here up front and then

28:43turn it over to Audrey.

28:46How's that? Yep, green light is on.

28:48Hopefully, you can hear me fine.

28:50Um my name is Eric. I am here to

28:53attempt to convey the uh the position of

28:55the folks over at HEET. Um had a great

28:57discussion with them and and looked

28:59through the slides. So, thank you for

29:00making those available. I think at a

29:02high level what I wanted to say is to

29:05point out um you know, what is the

29:07conclusion? What are we learning from

29:09this study? And I would argue that it's

29:12not necessarily saying is a thermal

29:14energy network viable in Cambridge? It

29:17is saying under these sets of

29:19assumptions and constraints, this is

29:21what, you know, the the project would

29:24look like. And I want to put a fine

29:26point on that because there were a

29:28number of assumptions specifically

29:29around available space, relying on

29:33boreholes, and how a network would be

29:35set up within the city that I think if

29:37you look at them through a different

29:39lens, you may come to a slightly

29:41different conclusion. So, I would

29:43suggest that starting from a position of

29:46"How do we make a thermal energy network

29:48viable in Cambridge?" and then working

29:50back into here's the criteria we would

29:52need and here's how we would find a site

29:55is a different way to approach it and it

29:57may show some different results.

30:00The main thing and and

30:02it was it was said on that last slide

30:04that was pulled up is low-cost thermal

30:06resources are absolutely a way to drive

30:09down project costs. And so, if you limit

30:12yourself to only boreholes up front and

30:14you don't consider waste heat, you don't

30:16consider the work that's going on with

30:18Boss 10 and using maybe water resources,

30:22and some other ways to heat and cool the

30:24network, um you're you're pretty

30:26handcuffed in what the results of that

30:28uh that study will say. In my opinion,

30:31it says Cambridge has a land problem.

30:34There's there's a lot of buildings. It's

30:36very dense, and it's hard to find open

30:38space for borefields. Which is fine, but

30:41I would say maybe we should say, "Okay,

30:44do we look at different ways to deploy

30:45bore fields? Do we look at angle

30:47drilling? Do we look at placing them

30:49underneath building footprints?" Some of

30:50the things that other major cities

30:52around the country are actively

30:54considering in projects right now. Um on

30:57the economic side of things, I also

30:59wanted to flag that my read of the study

31:01is that we're comparing to businesses

31:04usual. We're looking at what do we do

31:06today? What are the cost of fuels today?

31:09And we're not thinking about where does

31:11the city need to be in 10, 15, 20 years

31:14to meet its goals. And so, for example,

31:17something like the mass deployment of

31:19air source heat pumps on a building by

31:21building basis, those can look

31:23attractive. But if you consider what the

31:25grid build out needs to be here in the

31:28city and and what that's going to cost

31:30to put in

31:31potentially multiple new substations,

31:33for example, over that time period,

31:36um we want to look at this holistically.

31:38We want to say, "What will customer

31:39bills be at the end of the day when we

31:41have built out the electric grid to

31:43accommodate winter conditions in

31:45Massachusetts?" And so, finally, you

31:48know, the folks at HEET, they're doing a

31:50lot of great work on this. They have um

31:52some studies coming out very uh soon

31:55here in the near future. They have some

31:57research that they're actively

31:58undertaking. So, I would encourage

32:00everybody to, first and foremost, you

32:02you know, speak with them, ask

32:03questions, but look at all of this

32:06through the lens of what is best for the

32:09city and how do we make a thermal energy

32:11network work? What's the best case

32:13scenario? And, you know, as long as

32:16we're considering all of the options and

32:17we're going into this open and informed,

32:19that's how we make the best decisions.

32:21So, I will pass it over to Audrey cuz I

32:23know she has some slides, but hopefully

32:25um

32:26that viewpoint was communicated.

32:31>> Um so, thank you.

32:33Uh so, I think I'm just going to say in

32:35a longer way with visuals what Eric just

32:37said, and I'll try to make it as clear

32:39as possible. So, I'm from Black Swan

32:41Lab, it's a non-profit climate solutions

32:43incubator that's funded by Barr

32:45Foundation, MassCEC, and MAPC to help

32:48municipalities

32:50install thermal initiate the

32:52installation of thermal networks in

32:54every way. I am available to help you as

32:56you wish.

32:57Uh next slide. So, Cambridge is one of

33:00the best uh places in the world to

33:03install thermal networks because it is a

33:05gas island. It was originally one gas

33:08municipal

33:09uh you know, municipal plant. I think

33:12it's municipal. And uh every gas pipe

33:16ends at the at the border of the city.

33:19You can start to prune that gas tree

33:22anywhere you want at the borders of the

33:24build uh city on in, and probably in a

33:27lot of other places, too.

33:29Uh no almost no other city has that

33:32ability. And also, Cambridge is

33:35the you know, the city known for being

33:38environmental. It has money. It is

33:41incumbent upon Cambridge to do this well

33:44and think it through.

33:46Uh and uh there's so many people

33:48available to help them. Next.

33:51Uh the study considered only boreholes

33:55as was stated. That is the most

33:57expensive thermal source possible,

33:59especially in an area where the land is

34:02very valuable and has dense

34:04infrastructure on it. Why only

34:06boreholes? Next. If you were going to

34:09choose anything for you know, if there

34:11was a restriction in the money of for

34:12the study, why not choose uh wastewater?

34:16There's currently a state grant for it,

34:18or waste heat, or aquifers, or all the

34:21other ways that you can install thermal

34:23you know, that you can access thermal

34:25energy. Next.

34:28It did not look at Harvard, MIT, or

34:31Lesley Land to locate those boreholes

34:33in. Those are That's got to be 20% of

34:36Cambridge land, right? Why? I don't

34:38understand. Next.

34:41It included the cost of the building

34:44retrofits as though it was additional.

34:46Next, we have Budo here.

34:50All of the large buildings must

34:52transition.

34:54Why are we adding that cost as though

34:56it's additional? Maybe you just add the

34:59that assume that the buildings would be

35:01decarbonized faster than otherwise and

35:03you pay the difference.

35:06In that, you know, for that time period,

35:08but certainly you shouldn't do the whole

35:10cost

35:11as though it is additional.

35:13Next.

35:15Did not consider that with

35:17ultra-efficient thermal networks, the

35:19electric grid upgrades would be less

35:21expensive. Next, and the that money

35:23could potentially be moved to pay for

35:25the building retrofits that were not

35:28covered by Budo.

35:30And I know that's not allowed

35:32regulatorily yet,

35:34but this is the year to suggest it to

35:36the state.

35:38And I think with Eversource being both

35:40the gas and the electric provider, it's

35:42possible to bargain that through as a

35:44pilot study.

35:46Next.

35:48The customer savings looked suspiciously

35:51tiny.

35:52I don't know why because none of the

35:54analysis has been made available to

35:56anybody. I would love to see it. I would

35:57love to help with it. Next.

36:00The you know, what's the efficiency

36:01assumption for the system?

36:03What's the Was the electric heat pump

36:05rate used? Were the customers supposed

36:07to be paying back the retrofits? It

36:09looks like that. Um and uh a you know,

36:13was it compared to gas?

36:16We don't know. Next.

36:20The thing about gas is the price is

36:22extremely volatile as we all experienced

36:24last year.

36:26And that the energy price, the price of

36:29energy is one of the most common reasons

36:32that people become homeless.

36:34It is

36:35extremely important to businesses to be

36:38able to know in the future what their

36:40price of energy will be.

36:43With gas, we do not know. Next, with

36:46thermal energy, because it is simply

36:49installing the thermal infrastructure

36:51and paying back for that, as well as

36:54paying for the operations and

36:56maintenance, we can know that. It can be

36:58similar to a mortgage.

37:00So, next, it is going to thermal energy,

37:04if it is calculated, you know, done

37:06through a energy as a service agreement,

37:09it could be considered an economic

37:11development. Next.

37:13Finally, and this is probably the most

37:16important. In Cambridge, we have both

37:19Zeina Magavi and me who helped get

37:23thermal networks being considered

37:24nationally as something the gas

37:26utilities could go towards.

37:29We helped make them as an option across

37:32the country. We We both help advise

37:36cities and states nationally. Please ask

37:40for help.

37:41Because we'd love to help, really.

37:44>> [laughter]

37:45>> And uh so, now, next, ways forward.

37:50Look at it at how other public entities

37:52have installed these systems. I have a

37:54list there. There's a There's more of

37:56them.

37:57Look at third-party installations.

38:00Uh there's a list of them there.

38:03Uh and these are not all ambient

38:04temperature systems, but they are, you

38:06know, you know, thermal networks. Uh and

38:10talk to state regulators to consider

38:12options and figure out how Cambridge can

38:14help to make real systems change here.

38:17How we can help to create a system that

38:21changes how the state looks at this and

38:24how the country does because we have

38:25that opportunity. We can do it next.

38:30And my personal suggestion is that we

38:33pick a site now, potentially with many

38:36Budo buildings, and some local electric

38:39grid constraints.

38:40And we don't assume that the thermal

38:42energy is coming from boreholes.

38:44And we work with large local landowners.

38:48And we create an RFP working with local

38:51experts.

38:53And create in that RFP the stipulations

38:56that the city would be proud of.

38:58Flat thermal bills through energy as a

39:01service. Non-Budo building retrofits

39:04paid for by electric grid constraint,

39:06you know, costs, avoided costs, etc.

39:09Whatever would make Cambridge proud to

39:12be transitioning equitably and quickly

39:15and in a thoughtful way.

39:17And with energy bill affordability. And

39:19then issue the RFP for outside entities,

39:22Eversource and others. We got Vicinity

39:24at the table here

39:26to install an ambient temperature

39:29thermal network, the kind of system that

39:31can deliver heating and cooling as we

39:33move towards cooling-dominant city.

39:37Consider those proposals. You can always

39:39refuse them.

39:41And again, many people in Cambridge

39:43would be so happy to help.

39:45Uh I think uh last one. Yeah, that's it.

39:49Thank you.

39:51>> All right, and that was concise also, so

39:54Yeah.

39:54>> [laughter]

39:56>> Um thank you. I try to always.

39:59>> So, and also what I love is that I know

40:01the city loves this push kind of like

40:04pushing us. It it's totally in line with

40:07who we are cuz that's the only way we

40:08make progress is to make sure that we

40:10test our assumptions. So, but I will

40:12keep us on track and next turn to

40:14Vicinity Energy, who I have to say was

40:17unbelievable when you think about what

40:19Vicinity does, and I remember going

40:21there to look at the the way that you

40:24were transforming energy. And it's

40:26Anyway, I'll I'll let you do your

40:27presentation, but it's it's really

40:29exciting to have you at the table, and I

40:30know Matt O'Malley didn't get a chance

40:32to introduce himself. A recovering

40:34elected official is here also, so

40:38>> Well, I couldn't have done with a better

40:38introduction than that. So, thank you,

40:40Chairwoman Nolan.

40:41Uh so, first off, a big thank you, uh

40:43Chairwoman Nolan, and also to the

40:44committee members. Uh

40:45very excited to be here and talk about

40:47what we're doing to move the ball

40:48forward on decarbonizing cities.

40:51It's very exciting for me to be part of

40:52a group where we're talking about uh new

40:54technologies, and we're talking about

40:56pushing things forward to be able to

40:57decarbonize. So, today I'm going to talk

40:58about what Vicinity is doing to move the

41:01ball forward and new tech that we're

41:03putting in place to decarbonize the

41:05cities of Boston and Cambridge. And I'm

41:06very excited to say that we are well

41:08underway on this.

41:09Uh

41:10I I welcome anybody to stop by our plant

41:12so you can see what we're doing. We're

41:13We currently put online just recently

41:15one of the largest e-boilers on the

41:16continent. And we are in the process of

41:19constructing the largest heat pump in

41:20the world. Uh and

41:23if you're going to stop by the plant,

41:24stop by the plant soon cuz we actually

41:26just opened up the space. I have a

41:27picture to show where the heat pump's

41:28going to go. Uh before we opened up the

41:30space, I wasn't quite sure it was the

41:32biggest in the world, but now that I can

41:33see the space where it's going, it's

41:34definitely the biggest in the world.

41:37All right. So, with that, uh if we could

41:38pull up the slide deck, please.

41:44>> [clears throat]

41:49>> Okay, next slide.

41:51All right. So, a little bit about uh

41:53Vicinity Energy. So, we're the largest

41:55owner and operator of district energy

41:56systems in the United States. This is

41:59the Boston and Cambridge district energy

42:00system. It is approximately 71 million

42:02square feet or 29 miles of piping. Uh we

42:05are actively growing. We add about a

42:07mile of pipe per year.

42:08Uh and we are putting online uh multiple

42:11millions of square foot uh every couple

42:12years. So, it is something that is

42:14growing and one of the reasons it's

42:15growing is we have seen that with how

42:17we're advancing sustainability and

42:18decarbonization, we've shown up with

42:20what we call an affordable sustainable

42:22solution. And we have seen that if you

42:23can make sustainability affordable, that

42:25it sells. And I can talk about how we

42:27are going to be able to quickly

42:29decarbonize the Boston Cambridge system

42:31uh with what we're currently doing.

42:33Uh so, as a point of reference uh

42:35when I talk about 71 million square

42:37feet, uh it's a little difficult for

42:38people to try to picture that. The

42:40Prudential Center is about a million

42:41square feet.

42:42Uh so, we serve approximately 71

42:44uh Prudential Centers if you want to

42:46think about size. Another way to think

42:48about it is if you look on the Boston or

42:49Cambridge skyline, we serve typically

42:50the most marquee buildings, the largest

42:52buildings. Approximately four out of

42:54five buildings on the skyline are

42:55connected to the district energy system.

42:58Next slide.

43:03All right. So, what are we doing?

43:05So, at Vicinity, we our mission is to

43:08decarbonize cities.

43:10And we're doing that with a formula that

43:12has been applied over in Europe. We have

43:13shamelessly copied it, made it suitable

43:15for the American market, and that's what

43:16we're rolling out across where we do

43:18business. So, Boston and Cambridge are

43:20the first cities where we're rolling

43:21this out, but this is something we're

43:22actively doing in place in Philadelphia,

43:24Baltimore. Uh we're going to be turning

43:26on a large e-boiler in Grand Rapids

43:28later this year. So, this isn't talk.

43:30This is something that's actually

43:31happening.

43:32So, the first piece of equipment, much

43:33like the electric grid, we have three

43:35separate pieces of equipment that we're

43:36going to be putting in place. We have to

43:38have peakers that represent the fact

43:39that we have large swings in our energy

43:41that needs to be served. That's our

43:43e-boiler.

43:44Last year, we put on a 42-MW e-boiler.

43:47This is something that we started back

43:49in

43:50uh

43:52November of '22.

43:54November of '24. Yeah, November '24.

43:57Uh and it is online as of November of

43:582025. So, this is something that

44:01uh

44:02or I'm sorry. We started it in '22. It

44:03entered service on November of 2024.

44:05We've been at it for a little while, so

44:07uh this is something that started out uh

44:10as our peaking service, but one of the

44:12things we've seen that's really

44:12interesting is we have a lot of hours on

44:15the New England ISO grid where we have

44:16surplus solar that drives the power

44:17price negative. We anticipated

44:19approximately 1 to 3% of our hours of

44:21operation being taken advantage of

44:22balancing the grid. About 15% of our

44:25hours are balancing the grid. So, what

44:26you'll see if you stop by any given

44:28time, you can see the green light on the

44:29boiler there. Uh much like an electric

44:31car, you can't actually hear it run, so

44:33we had to put a light on it so we could

44:34tell that it's on. Uh so, if you walk by

44:36the plant and you'll see that light go

44:38from green to red or red to green, and

44:40what's happening is the operators are

44:41watching the power price on the grid.

44:43And as we get surplus solar events, we

44:45get surplus power events, we'll turn the

44:46boiler on to help balance the grid. So,

44:48it's something that we've seen that is

44:50not only helping balance the grid, but

44:51as part of us being able to import those

44:53low-cost wholesale power prices, we can

44:56then turn around and sell a decarbonized

44:59uh energy product at a very, very

45:00competitive price.

45:02The second technology is the one that

45:03I'm most excited about uh is our heat

45:06pump. So, this picture up here is a heat

45:08pump that we have visited over in

45:09Copenhagen. Uh so, I'm glad to say I

45:11think that's a 35-MW machine behind us

45:13there. Uh we're putting in a 38. We had

45:15to do a bigger.

45:17And this is going to be our base load

45:19technology.

45:20Uh the heat pump is a river source heat

45:22pump.

45:23We leverage existing infrastructure. One

45:25of the things that we're very proud of

45:26at Vicinity is our mission is to

45:28decarbonize cities, and as part of that

45:30is is leveraging existing infrastructure

45:32and incorporating that with new

45:33technologies. And I think that's the way

45:35that we move things forward.

45:38And as part of using our existing

45:39technology our existing infrastructure,

45:41we're leveraging the old river water

45:43intakes that go into the facility that

45:44the facility back when it used to

45:45generate power at that facility would be

45:48used for cooling. We no longer use it

45:49for cooling, but we have all the

45:50infrastructure there. So, we can bring

45:52in large volumes of river water, put

45:53that through our heat pump, cool that

45:55river water off about 4° Fahrenheit, and

45:57then send that river back send that

45:59water back out to the river. It allows

46:00us to peel off just a little bit of

46:02energy. The heat pump then concentrates

46:04that energy up into a high temperature

46:05and that's what we send out to the

46:06Boston and Cambridge systems.

46:08It's a very, very economic way. It's

46:10more economic than our e-boiler that is

46:11going to be online in 2028 and we are

46:13anticipating our system getting up close

46:16to 30 to 40% decarbonized when that

46:17piece of equipment comes online in 2028.

46:19We're enormously excited about it.

46:22The last piece of technology we're going

46:23to be putting in place, much like the

46:24electric grid, you have to have storage.

46:26So, we're in the process of of

46:28determining what technology we want to

46:30put in place. We have the footprint and

46:32we have the ability to be able to store

46:33upwards of 1 gigawatt of thermal storage

46:35at our site in Kendall. So, if you have

46:37the pleasure of stopping by our facility

46:38in 10 years, what you'll see is you'll

46:40see a couple e-boilers there, you'll see

46:41multiple river source heat pumps and

46:43you'll see a large gigawatt thermal

46:44storage that's working all in tandem.

46:46These three technologies put together

46:48allow us to affordably decarbonize the

46:51cities of Boston and Cambridge and it's

46:52something we're actively doing and it is

46:54growing at a rate that is

46:56much greater than what we expected. Next

46:58slide.

47:02So, some timelines. Like I talked about,

47:04we are in the process of actually doing

47:06this. So, our e-steam volumes at the top

47:08there,

47:092025 was our first year of operation

47:11where we had our e-boiler available.

47:13Less than 1% of our total steam sales

47:16were e-steam. E-steam is our

47:19I think because we have more engineers

47:20than marketing people in the company, we

47:22call it e-steam.

47:23And e-steam is where we import

47:25decarbonized electricity into our

47:27e-boiler or in the future in 2028 import

47:29decarbonized electricity into our heat

47:31pump and then turn around and send that

47:33decarbonized steam out onto the system.

47:35So, we've seen a 5x growth between 2025

47:37and 2026 and just as a point if you

47:40remember from the the second slide that

47:41I showed, we serve about 71 to 73 or 71

47:45to 73 million square feet of building

47:46space. So, that 5% is about 3.6 million

47:50square feet. So, that's we've already

47:52decarbonized approximately three, almost

47:54four Prudential Centers.

47:55So, we are actively in the process of

47:57doing this. We anticipate in 2027 we

47:59already have subscriptions that get us

48:01up above 20 or get us above 10% and then

48:03when the heat pump goes online in 2028,

48:05again, the heat pump by itself is

48:07capable of doing about 26 to 28% of our

48:09total steam flow

48:10uh and with this incremental load that

48:12we're seeing already, we anticipate

48:14being close to 40% decarbonized after

48:16the heat pump comes online. So, this is

48:18moving a lot faster than we anticipated

48:20and like I said, approaching the market

48:21with an affordable sustainable solution

48:23works.

48:26I've already talked a little about uh

48:27our heat pump. That's going to come

48:28online in 2028. That picture off to the

48:30right, uh I love the irony of the fact

48:32that in order to make space for the heat

48:34pump, we took out an old retired coal

48:36boiler.

48:38So, the facility used to be coal, it's

48:39not anymore. We use natural gas.

48:41Uh but, we had an old coal boiler that

48:43we had some space, we demoed it out and

48:45as you can see, that space there goes up

48:47approximately 6 to 7 stories. That

48:49entire space is going to get filled by

48:50the heat pump, so it is going to live up

48:52to the name of the largest heat pump in

48:53the world. Very excited about it.

48:56All right, next phase. Uh we're already

48:58starting on the design for heat pump

48:59number two. Uh we've got a lot of

49:01interest in heat pump one. We anticipate

49:02that coming online fully subscribed.

49:05Uh and we are also starting design in a

49:06harbor source heat pump on the south

49:07side of the system. Uh so, this is a

49:09technology that that works. Uh it's a

49:12technology that's been deployed over in

49:13Europe. We've retooled a little bit for

49:15the US market, uh but it is something

49:17that we're very excited about and is is

49:19growing under its own power. We've

49:20already sourced the capital for these.

49:22Uh we are in the process of sourcing

49:23customers. We have existing technology.

49:25It's simply just a matter of marching it

49:26forward like we are.

49:29By 2035, we anticipate over half of our

49:32system is going to be fully decarbonized

49:33and we are well on our way to meeting

49:35the city's decarbonization goals and

49:37well on our way to meeting our own

49:38internal decarbonization goals. Very

49:40proud of it.

49:42Next slide.

49:47So, this slide just wanted to talk about

49:48some of the collaboration. One of the

49:49more exciting things about bringing

49:51cutting-edge technology into Cambridge

49:53is it's a phenomenal place for

49:54partnerships. We can bring in multiple

49:56different entities and people that that

49:58we can show how we're moving the ball

50:00forward on decarbonizing cities, and we

50:01can show how we are establishing the

50:03blueprint of how you decarbonize large

50:05energy dense cities.

50:07And we've had many through the facility.

50:09We've got

50:10we've we've got regulators up there.

50:12We've got some students from MIT that

50:13they've come in, and it's simply just

50:15trying to show how we can decarbonize

50:18cities, how we can do it affordably, and

50:19how we can do it quickly. And we have

50:21the blueprint. It's the same blueprint

50:22that's been deployed over in Europe, and

50:23we're simply just deploying that over

50:25here, just retool for the US market.

50:29That's correct.

50:32Next slide.

50:35All right. And I'll hold off for any

50:36questions until later. Thank you.

50:38>> Oh my gosh, I have several questions,

50:39but I am going to hold off. Next up,

50:42thank you so much. Um

50:44campus heat recovery in MIT's buildings,

50:46campus planning. Take it away, Joe and

50:48Sarah.

50:54>> You just need to turn the mic on,

50:55please.

50:55>> Sure. Thank you, Madam Chair, Vice

50:57Mayor, and and counselors.

50:59Um delighted to be part of this

51:00conversation today. As some of you know,

51:02MIT's been on district energy systems

51:04since it came over to Cambridge over 100

51:06years ago. So, today it's about 10

51:08million square feet, and well over a 100

51:10buildings are on that district energy

51:12system. And and that's evolved over time

51:14from from coal to oil to natural gas to

51:16next generation cogeneration technology,

51:18and now we're currently in design of

51:19electrifying major part of the heat for

51:21our district energy system. But, I did

51:23want to take a few minutes just to

51:25provide an update on, you know, sort of

51:27a little bit broader progress on the

51:28campus. We have many teams working on

51:29energy efficiency and decarbonization

51:31planning.

51:32Um and as many of you know, MIT had um

51:35campus decarbonization goals as part of

51:37its Fast Forward Climate Plan, which we

51:39our president launched in in 2021. And

51:42here we are now 5 years later, many of

51:44those goals have been achieved or on

51:45schedule, including improving building

51:47energy efficiency, expanding our rooftop

51:49solar, and progressing towards our net

51:50zero carbon goals. So, just some some

51:53fact points. MIT's cut energy use per

51:55square foot across our campus by more

51:58than 10% over the past decade, and

52:00that's despite campus significant campus

52:02growth and more intensive intensive

52:04research activity

52:06on our campus. Our rooftop solar

52:08generation has increased by more than

52:10fivefold. We recently installed our

52:12solar panels on our student center, the

52:14Dewey Library, new Vassar Dorm, a

52:16Graduate Junction, and the Theater Arts

52:17building.

52:1833 MIT building projects over the past

52:21decade have earned a LEED certification

52:23for energy efficiency. We've completed

52:25more than 300 energy efficiency projects

52:28across the campus

52:29with an emphasis on our energy intense

52:31research facilities

52:33with great partnerships from the city

52:35and Eversource and and supporting us in

52:37that endeavor. One example, building 46,

52:40which is home to our brain and cognitive

52:41sciences complex, we identified major

52:45energy users,

52:46and a recent renovation of those energy

52:48systems reduced carbon emissions by 35%,

52:51which represented roughly 2% of the

52:52overall reduction of our campus

52:54emissions. And then most recently,

52:57and you may have heard the Metropolitan

52:58Storage Warehouse opened to as the new

53:01headquarters for our School of

53:02Architecture

53:03and Planning, and that uses an

53:05innovative system that captures waste

53:07heat from the campus cooling system. It

53:09uses electric heat pumps that then heat

53:12the building. We did look at boreholes

53:14for that particular project, but it was

53:15a third of the economic life cycle cost

53:18to actually just use waste heat rather

53:19than

53:21boreholes to supply the heat for that

53:23for the heat pump systems.

53:25And again, future renovations are going

53:26to continue to embed efficiency

53:28measures, smart ventilation, expanded

53:30heat recovery, and we're also using

53:32AI-supported temperature management

53:33across our classrooms,

53:35and and taking into consideration

53:37weather occupancy patterns and grid

53:39carbon intensity. And lastly, you may

53:41have seen the announcement of building

53:4239.

53:43It's an older building on campus, but it

53:45will be the new home for MIT's quantum

53:47research lab. It's projected to house uh

53:51one or two or three uh major quantum

53:53computers. But overall, the facility is

53:55projected to reduce energy use and

53:57emissions by about 70% compared to what

53:59the existing building baseline energy

54:01use was in the past. So, we were really

54:03happy to to set that that goal. So now,

54:05to further modernize our thermal energy

54:07network um and decarbonize on an urban

54:10campus, um we're going to continue to

54:12evolve how we produce energy and how we

54:15distribute energy across the campus. Uh

54:18there's several foundational elements

54:20that will shift our heat production from

54:22burning natural gas to using electricity

54:25in an increasingly green power grid. Um

54:27and the first element to that is

54:30starting design on a new large-scale

54:32electric heat pump plant. So, what we

54:33learned from the Met Warehouse

54:35um is that we could aim to recover waste

54:37heat from our district cooling system,

54:39and that could supply up to 30 to 40% of

54:42our campus um heating needs.

54:44Um the the technology that's out there

54:46today is new. Um as as Vicinity had

54:48mentioned, there's some exciting new

54:50large-scale heat pumps that we're

54:51evaluating different configurations, but

54:53we're currently in the design um to do

54:55that. And again, it would use

54:56electricity, produce hot water

54:59for campus uh heating. Um we're also

55:01exploring opportunities on the MIT

55:03campus for possible future use of

55:04geothermal air sources.

55:06Uh it it could be boreholes, um but

55:09again, accessing locations and potential

55:11thermal yield is something that we're

55:12currently evaluating um and and and

55:14assessing. So, we're doing early design

55:16and logistics planning on on how we

55:18might um unlock some of these uh new

55:20energy sources, uh but we don't have any

55:23like specific plans at this time as

55:26we're still going through the

55:27infrastructure challenges. As Arina

55:28said, the streets are busy. There's a

55:30lot of utilities, there's a lot of

55:31trees, and how you get the pipes to

55:32interconnect some of these things is

55:34currently under evaluation. Um another

55:36element to decarbonizing the district

55:38energy system is continuing to replace a

55:40lot of the legacy steam distribution

55:42piping um, and buildings uh, to a hot

55:45water. So, more buildings will be

55:46converted uh, from steam to hot water

55:49um, on our campus and we're currently

55:50into design to uh, to you know, continue

55:52that work. And then um, I think the last

55:54building block is one we're going to

55:56talk about very soon is developing a

55:57shared regional um, energy

55:59infrastructure. So, you know, MIT in in

56:02you know, collaboration with with

56:03Harvard and the city and and Boston

56:05University and Northeastern many

56:06institutions, municipalities. Um, we

56:08really see that it's essential to do

56:09decarbonization at scale. We can't we

56:11can't just do this one building at a

56:12time. Um, and MIT is an anchor

56:15participant in the Boston project and

56:16we're currently designing our heat pump

56:18plant to take advantage of that thermal

56:20energy network citywide for for the

56:23remainder um, 60 to 70% of source heat

56:27uh, that that we're going to need. So,

56:29so we're really excited uh, by this

56:30collective effort. Um, you know, we've

56:32gone over and seen it firsthand in in

56:34Denmark and Germany with many of the

56:36people here in this room. We know it can

56:37be done um, but it's a matter of policy,

56:40governance, owner operator structures

56:42and I think that's what we're going to

56:42be spending uh, the rest of our our time

56:45here discussing today.

56:49>> Anything to add from MIT? All right. Um,

56:52we'll go to is Boston

56:56online? That's what

57:01>> Hey, yes. Can you guys hear me okay?

57:03>> Yes, Lindsay. Thank you and I believe

57:04you did get our your presentation. So,

57:07is that true? If you queued up Mr. Evan,

57:09yeah. So, if you we can queue it up for

57:11you and move forward if you want to

57:12introduce yourself and take it away.

57:15>> Sure, absolutely happy to. Thank you so

57:17much

57:18um, Madam Chair, Vice Mayor and members

57:20of the City Council. Thank you for

57:22having us and giving us the opportunity

57:24to share with you a little bit about the

57:26Boston project. Uh, my name is Dr.

57:29Lindsay Butler. I'm the Executive

57:30Director of the Boston Green Ribbon

57:33Commission.

57:34Next slide, please.

57:38Just a little bit about the GRC for

57:41those of you who are not familiar. The

57:43GRC is a member-based organization that

57:46convenes Boston's most influential

57:48institutions to accelerate the climate

57:51action plan for the city of Boston. We

57:53advance multi-sector collaboration for

57:56both mitigation and adaptation and are

57:58an international model for

58:00public-private climate action networks.

58:02Next slide, please. [music]

58:05While the GRC was created about 15 years

58:08ago to advance climate action work for

58:10Boston, we have a great deal of overlap

58:14in our membership and a lot of ways in

58:16which we touch the city of Cambridge.

58:19You'll see some of Cambridge's biggest

58:21anchor institutions are also members of

58:23the GRC

58:25and that includes Harvard, MIT. We also

58:29have our utilities as members of the

58:32GRC. So, National Grid, Eversource and

58:35Vicinity. A lot of our other property

58:38owners like BXP and Mass General also

58:41overlap the sort of Boston-Cambridge

58:43line. And so, while the GRC exists to

58:46advance the city of Boston's climate

58:48action work, we really see a great deal

58:50of regional overlap in our engagement

58:54with our members. Next slide, please.

58:58We have three areas of strategic focus

59:00at the GRC.

59:02When we look at the things we're trying

59:05to advance both here in Boston and

59:07regionally on climate action and we sort

59:09of combine that with the power of our

59:11members, where can we be most effective?

59:14And that is on large building

59:16decarbonization,

59:18grid modernization and the energy

59:19transition and coastal resilience. Next

59:23slide.

59:25That work is driven through uh six

59:28working groups that are sort of the

59:29heart of the GRC. Healthcare, higher

59:33education, cultural institutions,

59:35commercial real estate, coastal

59:37resilience, and grid modernization. Uh

59:39and the city of Cambridge and Cambridge

59:41institutions are represented across all

59:44six of those working groups. Next slide.

59:49So now that everyone has a very brief um

59:52overview of what the GRC is and how we

59:54overlap with institutions across

59:57Cambridge, I'm now going to speak a

59:59little bit about the Boston project. Um

1:00:02as Joe just alluded to, um many

1:00:06institutions are examining the role of

1:00:09ground source geothermal in particular

1:00:12um as a part of their campus-wide

1:00:14decarbonization strategies. And Boston,

1:00:18I think was the convergence of many

1:00:20people's ideas about how we can

1:00:24decarbonize at scale. Um you heard about

1:00:28from Kevin all of the opportunities we

1:00:31see to use this this technology that we

1:00:33learned from our uh friends in Europe

1:00:36and how Vicinity is altering that for

1:00:38the US market, um but there's so much

1:00:41excitement among GRC members about

1:00:43geothermal energy. But there's also a

1:00:46lot of challenges. Um as we've seen in

1:00:48Cambridge and as we see in Boston, we

1:00:51have a very uh crowded and dense

1:00:53underground. We are two very old cities.

1:00:57And so um among leaders of the higher

1:01:00education working group and with the

1:01:02support of people like Audrey and Zeinab

1:01:04who I know are there with you in the

1:01:06room today, there was this idea to think

1:01:10about how we could share a thermal

1:01:13reservoir for decarbonization

1:01:16decarbonization at scale uh versus

1:01:18everyone having to take this on on their

1:01:21own. Next slide, please.

1:01:25Uh in collaboration with our funders,

1:01:27the Massachusetts Clean Energy Center

1:01:29and the city of Boston, uh the Green

1:01:31Ribbon Commission convenes um

1:01:34approximately 25 institutions and large

1:01:37property owners in the Boston effort.

1:01:41Next slide, please.

1:01:44And what we are trying to do is examine

1:01:46the feasibility

1:01:48of tapping into these shared reservoirs

1:01:52um as our thermal sources. So, the study

1:01:54is examining the feasibility

1:01:57of utilizing um ocean source um heat

1:02:02pumps. We would be looking at the Boston

1:02:04Harbor, the Fort Point Channel, the

1:02:07Mystic River, and the Charles River, as

1:02:10well as the bedrock beneath those rivers

1:02:13um as the start of this shared thermal

1:02:15energy network. Next slide, please.

1:02:20The study has five key deliverables that

1:02:23we're looking to answer. Uh first,

1:02:25related to thermal supply, how much

1:02:28clean thermal energy can be reliably

1:02:30extracted and or stored in these

1:02:33identified thermal reservoirs. Uh

1:02:36distribution, how can thermal energy be

1:02:38transported efficiently from those

1:02:41resources to our potential users? Uh

1:02:44thermal demand, where is there

1:02:46sufficient demand to support investment

1:02:49in this shared thermal infrastructure?

1:02:52Investment opportunities, for those

1:02:55places where we've identified that

1:02:57technical and economic feasibility

1:02:59exists and is demonstrated, where can we

1:03:03move forward first? Um and lastly, the

1:03:06regulatory and policy considerations

1:03:08that will be relevant to this work. What

1:03:11are the regulatory, permitting, and

1:03:13ownership issues that must be addressed

1:03:16before these projects can be

1:03:18implemented. Next slide, please.

1:03:22We have a variety of different ways that

1:03:24we are convening stakeholders around

1:03:26this work. We have a stakeholder

1:03:28advisory group, which includes the city

1:03:31of Cambridge and several of Cambridge um

1:03:34largest property owners and institutions

1:03:36like Harvard and MIT. Uh the stakeholder

1:03:39advisory group helps guide the project

1:03:41analysis and recommendations.

1:03:43Uh and the SAG will serve as the core

1:03:45stakeholder of the group to guide the

1:03:47project. Next slide, please.

1:03:51A little bit about the roles that that

1:03:53SAG plays in Boston. Uh they provide

1:03:56requested data to support an accurate

1:03:58analysis and make sure that the study

1:04:01reflects stakeholder needs and the local

1:04:03conditions. They're helping to inform

1:04:05the project design, providing uh

1:04:08feedback on interim deliverables and

1:04:10project recommendations, and advocating

1:04:13for key next steps to really get this

1:04:15work implemented. Next slide, please.

1:04:19The project also has a technical

1:04:21advisory group that we've established to

1:04:23provide objective third-party feedback

1:04:26on possible solutions to advance Boston

1:04:28area clean thermal energy networks. Um

1:04:31and I think you're going to hear from a

1:04:33member of our technical advisory group

1:04:35with HEET. Next slide.

1:04:38A little bit more about what the TAG is

1:04:40providing us input on specific technical

1:04:43issues, a sounding board to Salis

1:04:45O'Brien, who is the engineering

1:04:47consultant lead on the project, and

1:04:49feedback on our key assumptions, data

1:04:51sources, methodologies, uh and key

1:04:54questions. Next slide.

1:04:58Here's a little bit of a timeline of our

1:04:59project and when you should um expect to

1:05:03hear more about the findings of Boston's

1:05:06feasibility.

1:05:07Next slide.

1:05:10And a little bit about why we are doing

1:05:12this. Um as Joe said, we are interested

1:05:16in large building decarbonization at

1:05:18scale. Uh we know we can move more

1:05:20effectively, efficiently, and faster

1:05:23when we do this together.

1:05:24Uh we are looking to obviously reduce

1:05:26reliance on fossil fuels um because of

1:05:29the health improvements that come with

1:05:31that, the jobs that it can bring into

1:05:32our region, and the freedom from

1:05:35volatility of fossil fuel markets that

1:05:37we are currently seeing driven by

1:05:39geopolitical forces. We are looking to

1:05:42achieve a lower levelized cost of energy

1:05:45with distribution and connection shared

1:05:47over several users. We want to see

1:05:49owners pay less per unit of delivered

1:05:51comfort. Uh we know that energy is

1:05:54exchanged and not produced in a thermal

1:05:56energy network, which gives us a higher

1:05:58coefficient of performance. We are

1:06:00looking to reduce electric grid strain.

1:06:03We believe this can help reduce peak

1:06:05demand, uh reduces needs for the costly

1:06:07grid infrastructure improvements that we

1:06:09think we'll need to make as we electrify

1:06:11everything, um and allows for necessary

1:06:14redundancies in these anchor

1:06:15institutions.

1:06:17I think that's it.

1:06:21>> Okay. Oh my gosh, it's even more

1:06:23exciting with every presentation. Um

1:06:27So before I know there's um

1:06:30I think we have a couple people on

1:06:31public comment, and also I want to make

1:06:33sure that Lean, if you want to just say

1:06:35who you are and introduce yourself now

1:06:37that you're at the table.

1:06:40>> Thank you. Um good morning good

1:06:41afternoon everyone. My name is Lean

1:06:43Hayek. I'm a supervisor with Eversource

1:06:45Energy with a clean technology team.

1:06:48Currently working on the Framingham

1:06:49pilot and expansion. It's great to be

1:06:51here. Thank you.

1:06:53>> Because of course that is the epicenter

1:06:55of all of our hopes and dreams, the

1:06:57Framingham pilot. Although Mesa

1:06:59University in Colorado is also one of

1:07:01those cuz they've been in in place for

1:07:02what, 15 years? Um Uh, I do just want to

1:07:06remind us of one of the things that um,

1:07:08was just noted which we don't talk

1:07:10enough about is the opportunity cost of

1:07:13not doing something. We really just

1:07:15think well this is just something where

1:07:17we either choose to do or not, but the

1:07:19opportunity cost of not moving forward

1:07:21with something that is clean energy, but

1:07:23the critically important thing is the

1:07:25health impact that we know for sure

1:07:28every single people

1:07:30place that has fossil fuels like my home

1:07:32that is has a gas stove is actually

1:07:35compromising health and we know for

1:07:37vulnerable populations that asthma rates

1:07:38have have continued to skyrocket because

1:07:42we have not taken this on. So, I'm just

1:07:44reminding us all of that that those are

1:07:45costs that should be included. But, I

1:07:47will go to public comment I know a news

1:07:49from MIT Geo is here if you want to

1:07:51start out with that for a few minutes

1:07:52and then I don't know if other people

1:07:54have signed up.

1:08:01Oh, Lean did you want to say something?

1:08:02Did you or no? Someone no.

1:08:05Yeah.

1:08:07>> Can I make one clarifying point cuz it

1:08:09might be not clear from what was said?

1:08:12Uh, thermal ambient temperature thermal

1:08:14networks is what uh, Black Swan Lab and

1:08:17Heat are pushing for. They have the

1:08:19highest efficiency.

1:08:21For every one unit of energy going in it

1:08:23has it you deliver six to eight energy

1:08:26uh, units to the building.

1:08:29Uh, so and whereas uh, it is a fifth

1:08:32generation system. Steam as lovely as it

1:08:35is it it is when produced with

1:08:37renewables is fit first generation

1:08:40uh, thermal net thermal networks or

1:08:42district energy systems and they

1:08:45uh, it's like

1:08:47uh, what what COP are you getting? What

1:08:49efficiency level?

1:08:51Three?

1:08:52>> So, our heat pump runs in the high twos

1:08:54if you look at the heat pump in

1:08:55isolation. Uh, we built the heat pump to

1:08:57compete in the wintertime against air

1:08:58source heat pumps.

1:09:00So, we will actually be at a higher

1:09:01efficiency than building side air source

1:09:03heat pumps in the middle of the winter

1:09:04time.

1:09:04>> So, it's it's a third of the efficiency.

1:09:07And so, I just want to make sure that

1:09:09everybody understands if Cambridge is

1:09:11going to aim for something, it should

1:09:12aim for ambient temperature thermal

1:09:14networks. They are the highest

1:09:16efficiency. They will help deliver the

1:09:18lowest energy bills and move us forward

1:09:21fastest to what we need. Thank you.

1:09:23Sorry.

1:09:24>> Great. Thanks. Anushka, did you want to

1:09:26And then I think there's a couple of

1:09:28other people just signed up for public

1:09:29comment.

1:09:31>> We have three people signed up.

1:09:33Um if you could just say your name for

1:09:35the record, please.

1:09:38You just have to turn the microphone on.

1:09:41>> There we go.

1:09:42All right.

1:09:42>> And you can bring it forward. The

1:09:44microphone.

1:09:46>> There?

1:09:46>> Yep.

1:09:47>> All right. Wonderful. Um technical

1:09:49difficulties aside, um I'm Anushka. I am

1:09:52the president of GeoMIT, which is a

1:09:54student group focused on responsible

1:09:56community-driven building

1:09:57decarbonization through shallow

1:09:59geothermal. Uh we've been working with

1:10:01the governments of Ashfield and Salem to

1:10:03conduct initial feasibility studies.

1:10:04We've worked with Vermont Community

1:10:06Thermal Networks and won several

1:10:07competitions for our district energy

1:10:09design and analysis. And I wanted to

1:10:11quickly address the uh go back to the

1:10:14initial study and ask a couple

1:10:15questions. I think points of which that

1:10:18he has addressed already. One, the

1:10:19inclusion of MIT and Harvard and large

1:10:22building owners um with MIT and Harvard

1:10:25encompassing between both of them almost

1:10:27a third of Cambridge's emissions. Um an

1:10:29exclusion would be strange. Um

1:10:31additionally, the consideration of

1:10:33alternative thermal sources, especially

1:10:35um industrial waste heat from labs as

1:10:38well as waste water heat. So, GeoMIT,

1:10:41for example, has a project considering

1:10:43the potential of using municipal water

1:10:45as a thermal resource. And there are so

1:10:46many diverse thermal resources that can

1:10:48be considered, both sources and sinks,

1:10:51to help improve the efficiency of a

1:10:52thermal network. But, the most important

1:10:55thing that I really wanted to cover

1:10:56today was you know, to borrow the

1:10:58language of academia, it would be

1:11:00wonderful to have a thorough peer

1:11:01review.

1:11:02So, as part of Cambridge, a public

1:11:04government space, there there is a civic

1:11:06responsibility to have transparency to

1:11:08the constituents of Cambridge. So,

1:11:10asking the questions of what were the

1:11:11data sources behind the analysis, what

1:11:13were the critical assumptions behind the

1:11:15model, what types of drilling did you

1:11:16consider, what were the cost

1:11:18assumptions, what were the efficiency

1:11:19assumptions.

1:11:21Anything that would allow the public of

1:11:24Cambridge and Cambridge constituency to

1:11:25actually go through and systematically

1:11:27review, especially considering the

1:11:29amount of expertise that we have just

1:11:31sitting in this room right now.

1:11:32And I also wanted to touch on going

1:11:35forward,

1:11:36given the current state and given that

1:11:37there is clearly a lot more work to be

1:11:39done in this space,

1:11:40what is the role that Cambridge

1:11:42residents can play?

1:11:44So, how can we include not just these

1:11:46large institutions and projects like

1:11:48Boss 10, but how do we consider both the

1:11:51interested resident and the average

1:11:52resident so that we can make sure that

1:11:54when we decarbonize, we're doing so in a

1:11:57effective and equitable manner that

1:11:59really considers the needs of everybody

1:12:00involved.

1:12:03Thank you.

1:12:04>> Okay, and if you want to add more later,

1:12:05you can. Who else is then on the uh

1:12:08>> Our first speaker is Rupal Jain.

1:12:16>> Good afternoon. My name is Rupal Jain.

1:12:19I've been a Cambridge resident in North

1:12:22Cambridge for over 15 years. I'm also

1:12:24the mother of a CPS fourth-grader, and

1:12:27I'm speaking this afternoon on behalf of

1:12:30the Cambridge chapter of Mothers Out

1:12:31Front.

1:12:33We are proud of our city for adopting

1:12:35the Buddha ordinance and the specialized

1:12:37stretch code, and for participating in

1:12:39the fossil fuel-free pilot project. All

1:12:42measures that will help to reduce

1:12:44greenhouse gas emissions.

1:12:46We want to thank the City Council for

1:12:48their foresight in funding the

1:12:49geothermal network pilot study.

1:12:52We also thank the city staff and Salas

1:12:54O'Brien for their careful work.

1:12:57With the pace of climate change

1:12:58accelerating, it's critical to look at

1:13:00approaches for moving whole

1:13:01neighborhoods off fossil fuels.

1:13:04Cambridge has made a strong start on

1:13:06adopting geothermal heating systems for

1:13:08our new schools

1:13:10and renovated municipal buildings.

1:13:12We're encouraged that the city is

1:13:14looking forward to opportunities that

1:13:16could support municipal thermal networks

1:13:18centered on additional schools, CHA

1:13:21properties, and around parks.

1:13:24Since the Pacific Park pilot showed

1:13:26challenges with the cost of drilling

1:13:27boreholes, let's explore other heat

1:13:30sources like city sewers, commercial

1:13:33waste heat, and the Charles River.

1:13:36Health Peaks' planned 42-acre

1:13:38development at Alewife should be able to

1:13:40be served by a geothermal network where

1:13:43new building construction substantially

1:13:45lowers costs.

1:13:47Because thermal networks require much

1:13:50less electricity than other clean heat

1:13:52sources, the Health Peaks complex could

1:13:55avoid overloading the existing electric

1:13:58substation.

1:14:00Regardless of the green technologies we

1:14:02adopt, Cambridge needs to begin

1:14:04collaborative long-term planning with

1:14:06Eversource. We urge the city to seek the

1:14:09planning and mapping tools Eversource

1:14:11can provide and use them to work with

1:14:14the Eversource

1:14:16with Eversource to plan and carry out

1:14:18the gradual decommissioning of existing

1:14:20gas infrastructure

1:14:22alongside the build-out of electric

1:14:24infrastructure we will need to achieve

1:14:27net zero by 2050. Thank you.

1:14:34>> Our next speaker is Elena Fagotto.

1:14:42Elena, you're not speaking?

1:14:45Okay. Anyone else? Our final speaker is

1:14:47Susan Marcott.

1:14:50>> Is she online?

1:14:54Oh, right.

1:14:56>> That is all who signed up.

1:15:03>> Okay, I am

1:15:07Okay.

1:15:09I didn't I don't see her. Did you have

1:15:10her comments by any chance?

1:15:19Okay, I I don't see them. I I would

1:15:21honor that to read them into the record,

1:15:23but I don't see them. So, we'll make

1:15:24sure we we we get them. Um

1:15:28Okay.

1:15:30So, here's here's what comes next

1:15:32is

1:15:34the part where we all get to talk with

1:15:36each other and this well, it is a formal

1:15:38committee hearing. I also think it's

1:15:40really important we treat all of us as

1:15:42participants. So, I will recognize

1:15:45anybody I I'll start with my colleagues

1:15:47if they have questions, but feel free to

1:15:49ask questions of anybody at the table

1:15:51and to go back and forth including if

1:15:54vicinity is a question for a Black Swan

1:15:55or something like that. Did you have a

1:15:57question around that

1:15:58>> So, I I just had a statement in the in

1:15:59the in the theme of of working together

1:16:02and and trying to move things forward.

1:16:04Uh

1:16:05I think it's enormously interesting

1:16:06performing these kind of studies and

1:16:08we're happy or uh

1:16:09happy to be part of the membership in

1:16:11GRC and participate in this Boston

1:16:12study. Very excited about it.

1:16:14One of the things that

1:16:16that we've tried to be very particular

1:16:18about as we are rolling out solutions is

1:16:20the affordability side. Especially in

1:16:22today's environment where energy is

1:16:23becoming enormously expensive and one of

1:16:25the reasons why what what we are are

1:16:29are pushing out works is because the

1:16:31affordability angle to it. And I think

1:16:33it's important to keep that in the

1:16:34context of

1:16:36efficiency is important, but at the end

1:16:37of the day it's not about efficiency,

1:16:39it's about affordability. There's a

1:16:40reason why we don't drive cars with fuel

1:16:42cells. Fuel cells are, you know, more

1:16:44than double the efficiency of internal

1:16:46combustion engines, but none of us have

1:16:47cars with fuel cells because they're too

1:16:48expensive.

1:16:49So, it's just something to keep in mind.

1:16:51I think it's a very important to try to

1:16:53chase and secure more efficient

1:16:55uh

1:16:56solutions, but at the end of the day, we

1:16:58want to arrive at a solution that is

1:16:59affordable because affordable drives the

1:17:00rate of adoption, and we all understand

1:17:02that this is something that we need to

1:17:03have moving today.

1:17:07>> Thanks. I agree with that. I just I do

1:17:10would make a plea for fully loaded

1:17:11costs, which includes health costs,

1:17:13health care, you know, of and

1:17:15opportunity cost of not doing something.

1:17:17So, but totally agree, if it's not

1:17:18affordable, it's not going to happen.

1:17:20Audrey, did you want to and then let me

1:17:21start with my colleagues and then I'll

1:17:22come to you, Audrey. So,

1:17:24uh

1:17:25Councilor Azubike.

1:17:26>> Thank you, Mr. Chair. Uh just curious to

1:17:29hear a little bit more if anybody can

1:17:30speak to it on where Eversource has been

1:17:33in this conversation. I saw on the

1:17:35presentation slide that they are doing

1:17:38work in Framingham, and I'm curious like

1:17:41are have we been in touch and

1:17:42communication around what they're

1:17:44thinking long-term for this and what

1:17:46role they would play. Um curious to hear

1:17:48that, and then have another comment on

1:17:51the boreholes.

1:17:56>> Thank you.

1:17:57So, um the uh Eversource team has been

1:18:01engaged with the city of uh city of

1:18:02Cambridge. Uh we attended the technical

1:18:05presentations a couple of weeks ago, I

1:18:08believe. Provided some comments and

1:18:09discussion, and of course, we're always

1:18:12happy to cooperate, um review the study

1:18:15in more detail, uh offer any comments,

1:18:18and uh the whole purpose of the

1:18:20Framingham pilot was of course to bring

1:18:22forth lessons learned and share them

1:18:24with uh all communities that are

1:18:26interested in you know, whether

1:18:28nationally and beyond, um

1:18:30to promote uh

1:18:32network geothermal uh projects. And so,

1:18:36uh we'd be happy to continue to

1:18:38cooperate and share those lessons

1:18:40learned.

1:18:41>> Thank you.

1:18:42>> Before Counselor Sbrega, do you know

1:18:43what the Framingham pilot consists of?

1:18:44Cuz if not, Liam could just

1:18:46>> I'm happy to give an introduction.

1:18:47>> Yeah, I think it'd be great to hear

1:18:48that. And also, I would under I don't

1:18:51know about much about the Eversource

1:18:52pilot program in Framingham. So, I'd be

1:18:54curious to hear like how much of that

1:18:55was funded by Eversource versus

1:18:57Framingham. So, I'd be curious to hear

1:18:59like what role Eversource could play

1:19:01with us um in making this happen, too.

1:19:04>> Yeah, that's a great question. So, I can

1:19:05give a quick overview of the Framingham

1:19:07project. So, uh the project is a

1:19:10uh network geothermal project. We

1:19:12provide uh heating and cooling to around

1:19:16135 customers

1:19:19uh in one neighborhood in Framingham.

1:19:21This includes a variety of customers

1:19:23with different loads. So, it includes

1:19:25commercial customers, a Framingham

1:19:27public school building, a fire station,

1:19:30a couple of smaller commercial

1:19:32uh customers um as well as uh

1:19:36uh housing authority, the Framingham

1:19:37Housing Authority. We have around nine

1:19:39buildings plus a community center, nine

1:19:41residential buildings and a community

1:19:42center on our loop. And uh additionally,

1:19:45we have around 23 residential customers

1:19:48that are served. Overall, we have 88

1:19:51boreholes. We have three borefields uh

1:19:53combining both directional and

1:19:56traditional drilling technologies.

1:19:59Um

1:20:00and um so far, we've been in operate the

1:20:04system was commissioned in December

1:20:052024.

1:20:07Um since then, we've, you know, been in

1:20:09uh operations and maintenance. We have

1:20:11some additional customers join in later

1:20:14uh just due to staggering construction.

1:20:17But, the system has been operating quite

1:20:19well. Um even this past winter, it was a

1:20:22record-breaking winter, and we were all,

1:20:24you know, excited to see how the system

1:20:25performs. But, uh it operated quite

1:20:27well. We have a um backup boiler we

1:20:30haven't had to turn on because the loop

1:20:32temp loop temperature was within the

1:20:34design boundaries. Um

1:20:36and um you know, we're excited to see

1:20:38how how how much the system continues to

1:20:41perform. It's been quite resilient, I

1:20:43will say as I mentioned, and um

1:20:46um overall, I think right now we're

1:20:48moving more towards optimizing the

1:20:51system in terms of

1:20:53uh pump operations, system logic, things

1:20:57like that uh overall. In terms of cost,

1:21:00uh the project is ratepayer funded, so

1:21:03Eversource recovers the cost through a

1:21:05geothermal energy provision filing with

1:21:07the DPU.

1:21:09Um

1:21:10we file for that annually, basically.

1:21:14>> Okay.

1:21:16>> Oh, yeah, go ahead.

1:21:17>> Yeah, if I may add um

1:21:20Heat, [clears throat] Eversource, and

1:21:21the city of Framingham are also jointly

1:21:23working on an expansion to the system

1:21:26that is funded through a a federal DOE

1:21:28grant. So, that is ongoing work separate

1:21:31from the initial pilot, but that has

1:21:33been moving along for the past year and

1:21:36a half at this point.

1:21:37>> Got you. You said that was a DOE grant?

1:21:39>> Yeah, it was a Department of Energy um

1:21:42GTO office's grant, and initially it was

1:21:45for design of an expansion, and then it

1:21:48moved to phase two. Uh it was

1:21:50down-selected for construction funding,

1:21:52as well. So, that is ongoing work to

1:21:54approximately double the size of the

1:21:56existing network.

1:21:58>> Got you. Um I'll be very quick in the

1:22:00second part. I definitely am still

1:22:02trying to digest

1:22:03all of the comments and presentations.

1:22:06Um I noticed that on this on on the

1:22:08slide that has the the map of the United

1:22:10States and just kind of where different

1:22:12cities are with the study design and

1:22:14operation, I had looked up each one, and

1:22:16it seems like boreholes

1:22:18were the ones that consistently were

1:22:21used. Although, it's interesting to see

1:22:24there were like a few scenarios where an

1:22:26aquifer open loop system was used. Uh Um

1:22:30I'd be curious like to to learn a little

1:22:32bit more about those, especially if we

1:22:34know that the cost of doing bore holes

1:22:37um would be really expensive, and how we

1:22:40can leverage like we've heard others say

1:22:43um some of the sources that we already

1:22:44have in the city all yield.

1:22:48>> Um I was just going to say that that's

1:22:49the map of um from the consultants. I

1:22:51don't know if somebody from Salas

1:22:53O'Brien can respond to that.

1:22:55Or Arena.

1:22:57>> I might call on Lindsay.

1:23:02Or Brian Erlob from the Salas team.

1:23:05>> If Brian, you could take this one.

1:23:08>> Yeah, I'm sorry. Could Could you repeat

1:23:10that question? I apologize.

1:23:12>> No worries. It wasn't really a question.

1:23:14I was just fascinated by the the map,

1:23:16and I I noticed looking them up is a lot

1:23:18of them have are using bore holes,

1:23:21although there are some cases like the

1:23:22waterfront gateway that's using an open

1:23:24loop system with an aquifer, and then

1:23:27the one in Staten Island seems a bit

1:23:29different as well.

1:23:31Um is that like

1:23:33Do you have an explanation behind that

1:23:35trend? Like if there's a question I were

1:23:36to ask, I guess understanding that trend

1:23:38would be helpful.

1:23:39>> Yeah, I mean um

1:23:41with with a related geothermal uh

1:23:43systems or or geo exchange systems,

1:23:45they're very site specific to the

1:23:47subsurface conditions.

1:23:49And so uh if you're sitting on top of a

1:23:52really high productive aquifer that's

1:23:54relatively shallow, that's a lower cost

1:23:56of construction, so we would look at

1:23:59that as a potential option. Uh granted,

1:24:01if it's if it's allowed by code, state

1:24:04code.

1:24:05Um so the Northwest Natural project is

1:24:07sitting on a fantastic aquifer, and so

1:24:09if you can reduce uh operating and and

1:24:12I'm sorry, and construction costs, you

1:24:14know, that's something that we certainly

1:24:15analyze anytime we look at these

1:24:17projects. So we're always trying to

1:24:19really optimize costs

1:24:22uh and capital expenditures versus um

1:24:25you know, operating costs and and so

1:24:26forth. So, some of these projects have

1:24:28traditional boreholes, some of them have

1:24:30open-loop systems.

1:24:32Um some of them uh like the Haverstraw

1:24:34project in New York is is also combined

1:24:36with a sewage heat recovery system. So,

1:24:39again, it's really trying to look for

1:24:41the most uh

1:24:43or or the lowest cost thermal assets,

1:24:45try to deploy those within the project

1:24:47uh because that would bring the entire

1:24:48cost down. And um you know, then

1:24:51obviously make it more affordable for

1:24:53you know, people using the energy.

1:24:57>> Thank you, O'Leary.

1:24:58Before I go to Council Zuzie, uh Audrey,

1:25:00you said you wanted to add to this?

1:25:02>> Yeah, simply that uh the the lowest cost

1:25:05is you know, in almost all places when

1:25:07it's available is not boreholes.

1:25:10Boreholes are you know, incredible.

1:25:13Uh and uh our most you know, the ground

1:25:16is everywhere.

1:25:17Uh assuming you've got a good uh you

1:25:19know,

1:25:21uh access to bedrock, it's a really

1:25:22great way to go.

1:25:24And

1:25:25you always look for lower cost first

1:25:27options. Right now, there is a state,

1:25:30you know, DEP grant to do wastewater

1:25:33energy recovery, and I will add that in

1:25:36New York, the two thermal networks that

1:25:38are moving forward are both wastewater

1:25:41energy recovery systems because they

1:25:43cost less.

1:25:45Um that is a common observation.

1:25:49So, and can I add just one thing going

1:25:51back to

1:25:52uh Kevin's point?

1:25:54Is that okay? Um the energy bill

1:25:57affordability is of course incredibly

1:25:59important. Um I would say that, you

1:26:01know, and I'm sure uh Vicinity is doing

1:26:03an incredible job. I would never

1:26:05question that. I know that Vicinity is

1:26:07is not regulated in that its previous

1:26:10owner, the uh Veolia, had some

1:26:13difficulties with the customers where

1:26:14the the were going very high in weird

1:26:17ways. And I'm I'm sure Vicinity is not

1:26:19doing the same, but it can't If it's

1:26:21non-regulated

1:26:23or if there is a the entity is not, you

1:26:27know, it doesn't have a good contract,

1:26:29you know, bargain potentially by the

1:26:31public entity that that, you know, by

1:26:34the city,

1:26:35then we might be able to have energy

1:26:38bill problems far into the future,

1:26:40right? The city has power. If you're

1:26:42going to let anybody use your public

1:26:44right-of-ways, do the bargaining to make

1:26:46sure your residents get really good

1:26:49uh energy affordability far into the

1:26:51future, for decades into the future, cuz

1:26:53you can with this method.

1:26:57>> Did you want to respond to before I go

1:26:58to Councilor Zezima or

1:27:00>> So, I I would just like to make a

1:27:01comment on the waste heat.

1:27:02>> Uh-huh.

1:27:03>> [clears throat]

1:27:03>> So, uh

1:27:04one of the things that we've been

1:27:05working on not in Boston and Cambridge,

1:27:06but in Kansas City. So, we are a private

1:27:09utility, but one of the real benefits of

1:27:10private utilities is we go fast.

1:27:12So, in something that we can decide in a

1:27:14boardroom in an afternoon might take a

1:27:16regulated utility a couple years.

1:27:18And we have partnerships with regulated

1:27:19utilities because they oftentimes will

1:27:21spend more more dollars on a study uh

1:27:23than we will on just the preliminary

1:27:25engineering for something. So, being a

1:27:26part of a private utility allows us to

1:27:29go very quickly, which we're showing off

1:27:31in Boston and Cambridge with this

1:27:32decarbonization plan, but also when you

1:27:34want to talk waste heat, uh we recently

1:27:36uh executed two separate deals with edge

1:27:38data centers in Kansas City. And one of

1:27:40the things that we are seeing as an

1:27:41enormous waste heat source are edge data

1:27:44centers. As you get into technologies

1:27:46like autonomous driving cars, we're

1:27:48starting to see smaller data centers.

1:27:49They're quite large, 10-20. The one in

1:27:51Kansas City's 25 MW

1:27:53that we have connected onto our chilled

1:27:54water system that's bringing the heat

1:27:56back to the plant. We are then going to

1:27:57use that heat to help heat the city of

1:27:59of uh Kansas City. So, we're looking to

1:28:01do the same thing here in Boston and

1:28:03Cambridge, and us being a private

1:28:04utility allows us to get into those

1:28:06agreements quick with those kind of edge

1:28:07data centers. But, when we're looking at

1:28:09heat, I 100% agree that oftentimes waste

1:28:12heat is more economic and these edge

1:28:14data centers, if you put 20 MW into a

1:28:16data center, you get 20 MW of waste heat

1:28:18out.

1:28:20>> I don't think anyone would say we

1:28:23sometimes over regulate, but there's a

1:28:25reason that regulations come in and so

1:28:27it's really figuring that out. The city

1:28:29is in the middle of trying to figure out

1:28:30how do we accelerate many, many things

1:28:32by not taking away regulation cuz we

1:28:35know we need them and yet you're right

1:28:36that there is

1:28:38boy, when you go to National League of

1:28:39Cities and you hear how fast other

1:28:40people go, it's a little embarrassing to

1:28:42be from Massachusetts. Eric, did you

1:28:44want and then we'll get to Counselor

1:28:45Zuzie.

1:28:45>> If I may just continue on the point, um

1:28:48waste heat in any form or using our

1:28:50waterways or using an aquifer are all

1:28:53great ways to recover and leverage the

1:28:56heat that's already in our systems. The

1:28:59key is you have to have a way to move

1:29:01and use that heat. If you don't have the

1:29:03highway, if you don't have the thermal

1:29:05network,

1:29:06there's nowhere for it to go and it ends

1:29:08up going up into the air at a much

1:29:10higher cost. So, I just wanted to close

1:29:11on that point that you need some form of

1:29:14a network regardless of what it is.

1:29:15There needs to be a way to move that

1:29:17heat throughout the community.

1:29:19>> Right. My favorite is there's a building

1:29:21in New York that just like a cross from

1:29:23a post office and they just share

1:29:25energy. It's unbelievable how effective

1:29:26it is. Counselor Zuzie.

1:29:28>> Um thank you thank you, Counselor Nolan

1:29:31and what an amazing

1:29:33gathering of minds. Um I wanted I just

1:29:36wanted to make a comment at first which

1:29:38is uh it seems to me

1:29:41uh unfortunate that heat wasn't brought

1:29:43in at at the beginning as the city was

1:29:47considering

1:29:48um exploring thermal energy networks. I

1:29:51feel like the assumptions that the setup

1:29:53of the study would have been more

1:29:55productive had heat

1:29:59>> What?

1:30:00>> Black Swan Labs.

1:30:01>> Black Black Swan Labs. Yeah, I um they

1:30:04should they should have been part of the

1:30:08as you were

1:30:09defining the study, they should have

1:30:10been there. It would have been a more

1:30:12effective study if they had been

1:30:14engaged. So, let's learn from that

1:30:16experience and be more inclusive going

1:30:19forward.

1:30:20Um, and not intimidated by other

1:30:23bringing in other expertise. I wanted to

1:30:25ask again looking at the city study and

1:30:29then like going back to Framingham. I

1:30:30don't know what the Framingham project

1:30:33cost. It would be good to know what that

1:30:35cost was. I mean, we're thinking that if

1:30:37we developed at Pacific Street Park, it

1:30:40could cost between what? Between 50 and

1:30:4370 million dollars. So, what would the

1:30:46Framingham project cost and who funded

1:30:48it?

1:30:49>> So, uh, currently as I mentioned, uh,

1:30:52per our latest geothermal energy

1:30:54provision filing, I believe we're on,

1:30:57um,

1:30:58spending current has been around 28

1:31:00million dollars overall and the overall

1:31:02estimate for the project is roughly

1:31:04around 30 million dollars.

1:31:0728 incurred so far and the total cost is

1:31:10around 30 million.

1:31:12>> In what year?

1:31:14>> What year? Oh, this is overall.

1:31:16Over total project cost.

1:31:18>> Yeah, and so why is our project so much

1:31:21more expensive and then just to add on

1:31:23to that question

1:31:25is MIT supportive of the Pacific Street

1:31:28Park project and who who would take the

1:31:30lead with that? Who would pay for that

1:31:32project?

1:31:33>> Can maybe I can just add a little bit.

1:31:35Um, and I think so also Brian can um,

1:31:38weigh in our arena on the cost. I think

1:31:41we really looked at this as a

1:31:42feasibility study and so I do want to

1:31:44just take a little bit of a back up in

1:31:45terms of um, making sure we're clear

1:31:48that, you know, this really came out um,

1:31:51the push for this was immediately after

1:31:52the Framingham pilot came out and you

1:31:55know, we had wanted to participate in

1:31:57the Eversource pilot um, and we're not

1:32:00chosen. I think probably for some of the

1:32:01complexities and um and challenges of

1:32:04the the city of Cambridge. And so, that

1:32:06was sort of the genesis of the study.

1:32:08And so, I totally take the feedback

1:32:11about there were different ways to look

1:32:12at it and different things that should

1:32:14be considered. And so, um to counselor

1:32:16Nolan's point, like the push and pull is

1:32:18super helpful and and actually really

1:32:20appreciated. Um

1:32:22But the the sort of the premise of the

1:32:23study was really to sort of say, "Okay,

1:32:26is a model that's sort of like

1:32:27Framingham repeatable in the city of

1:32:29Cambridge?" And what would that look

1:32:31like? Um and so, that was the premise of

1:32:34the study. And um the the

1:32:38um the so the feasibility was really a

1:32:42very high-level feasibility. This is not

1:32:44a a we have a design, let's go

1:32:46implement. It's to sort of say, "What

1:32:48would it take to be the for this to be

1:32:49feasible at a neighborhood level, but

1:32:52that's sort of repeatable that you could

1:32:53do a multiple levels?" And I think, you

1:32:55know, at a high level, one of the

1:32:56significant challenges is that, you

1:32:58know, Framingham that was done by

1:33:01Eversource, owned by the utility that is

1:33:04being built by the utility and paid by

1:33:06the ratepayers.

1:33:08And it's also that there is more of a

1:33:10direct connection of some of the cost

1:33:13stuff, like, "Oh, you could avoid the

1:33:14cost of a a future substation," which is

1:33:17really significant, right? Like that is

1:33:19one of where the really beneficial cost

1:33:21come from. And that is much more clear

1:33:24if it's Eversource sort of owning the G,

1:33:26you know, the 10 network and avoiding

1:33:28the future um substation work. And so,

1:33:32it's super hard to sort of parse these

1:33:34out as a "Oh, here's a Cambridge project

1:33:36that we should do" in terms of us owning

1:33:39and operating um electric utility or you

1:33:42know, a um

1:33:44thermal energy utility and sort of how

1:33:46that would play out. And so, I think

1:33:48that is where the Framingham model is

1:33:49super helpful in terms of Eversource.

1:33:52And again, Eversource, you know, has

1:33:53both the gas and the electricity side.

1:33:55And so, if they're moving companies from

1:33:57one, you know, customers from one side

1:33:59to the other, they're also capturing

1:34:01those customer base. So, they're not

1:34:02competing with each other in the same

1:34:04way. But, but I did just want to make

1:34:06really clear that this is not sort of a

1:34:07like, "Oh, here's what you know, a

1:34:09detailed design that they would move

1:34:11forward." It's really what are the

1:34:12conditions that would make this sort of

1:34:14repeatable at scale in a neighborhood.

1:34:17Um and I think it's shown that there's

1:34:18some real challenges with that, and

1:34:20there's some real benefits in terms of

1:34:22Eversource sort of being the lead owner

1:34:24and operator of such systems that we are

1:34:26really dedicated to trying to figure out

1:34:28how to proceed with. And I also just

1:34:30want to really emphasize I really

1:34:31appreciate, you know, pulling in the

1:34:33Boston conversation cuz that is also one

1:34:35that we are super excited to be a part

1:34:37of, and I really think, you know, really

1:34:40believe that

1:34:41broader collaboration on all of these

1:34:43issues, right? Like we've talked about

1:34:44it with the coastal resiliency for

1:34:46years.

1:34:47Um but similarly with the, you know, the

1:34:49Boston Green Ribbon Commission, it's

1:34:51super helpful to have this more regional

1:34:53larger scale. Um and so we're super

1:34:55excited to be participants in that

1:34:57process as well.

1:35:00>> Um and I and I'll just say

1:35:02Lean, did you want to Yeah, did you have

1:35:04your hand up?

1:35:05>> Yeah, I just wanted to add just to add

1:35:07to that. I think in addition, um one of

1:35:09the main, you know, advantages of of

1:35:12being in a utility is a lot of

1:35:13transferable workforce or transferable

1:35:16learnings. And um I think having that

1:35:18expertise within the utility has really

1:35:20helped uh push the project

1:35:23uh forward. Um on the cost uh argument

1:35:26or the cost discussion, I'd like to just

1:35:28also um

1:35:30point out as as Eric had mentioned, the

1:35:32expansion is doubling the capacity, but

1:35:34at half the cost. So, this is uh a great

1:35:38I think what did we expect to be half

1:35:40the cost? So, this is a great um I guess

1:35:43lesson learned in the expandability of

1:35:45of geothermal systems, and

1:35:47um the improved efficiency once uh uh

1:35:50the system is uh

1:35:52is constructed and you start to build on

1:35:54that network and the network benefits as

1:35:56the network grows. Just wanted to flag

1:35:58that as well.

1:36:00>> Okay, if if it wasn't clear by the way,

1:36:02if anyone at the table wants to add,

1:36:04just like put your hand up or something

1:36:05and I'll try to scan and make sure that

1:36:07you're included. So, Arena and then

1:36:09Audrey and then Kathy.

1:36:10>> Thank you. I know it's harder to have

1:36:12the folks that are online raise their

1:36:13hands, but I think Rob McKenna, if

1:36:15you're on and can talk a little bit more

1:36:17about how the city's study evaluated the

1:36:20costs.

1:36:21>> And can I just confirm at some point all

1:36:23those assumptions will be made public,

1:36:25correct?

1:36:25>> Yeah, we have a we have the reports to

1:36:27share out and maybe you had also asked

1:36:29about the, you know, participation of

1:36:31MIT and I think MIT was interested in

1:36:33having us look into this building in

1:36:35part because the building itself is not

1:36:36part of the of the central utility plant

1:36:40for the campus. So, we were able to, you

1:36:41know, provide data through this cost

1:36:44estimation of what it would take to

1:36:45convert this building that we are able

1:36:47to share with MIT.

1:36:50>> Rob?

1:36:51>> Rob, did you want to

1:36:53>> Thank you. Thank you. Yes, I'll I'll

1:36:55attempt to Can Can you all hear me?

1:36:59>> Yes. Yes.

1:37:00>> Great. Great. Thank you.

1:37:01>> Yes.

1:37:02>> Thank [clears throat] you. Yes, I'll

1:37:03I'll attempt to respond to to the cost

1:37:06question. So, for starters,

1:37:08um this is a conceptual

1:37:11uh

1:37:12study and so these cost estimates are

1:37:14class five estimates based on basically

1:37:18uh less than 5% design of the system and

1:37:21so there is wide range of uncertainty

1:37:24around uh these cost estimates and so

1:37:26there is a significant uh

1:37:29probability that the cost could

1:37:31potentially be less. Second factor, if

1:37:33you're comparing relative to the

1:37:35uh Framingham example, is

1:37:37[clears throat] we're now uh

1:37:39a few years beyond that cost

1:37:41escalations. There's been significant

1:37:43cost escalations in this market

1:37:45specifically

1:37:46uh that have driven costs higher and so

1:37:49the cost

1:37:50uh reference points that we utilized um

1:37:54you know, had accounted for that, which

1:37:56is a you know, fairly uh significant

1:37:58increase in in costs.

1:38:00And um

1:38:02anyway, so those are the two biggest

1:38:04drivers that we see. And let me uh point

1:38:07at uh Lindsay and Brian uh from our team

1:38:09to see if you have any other elements to

1:38:12uh

1:38:12uh to add to that. Brian, I know where

1:38:14uh you had a couple of other points

1:38:16potentially to add.

1:38:18>> Yeah, I mean it I mean I mean obviously,

1:38:20like you said, this is a class five

1:38:22estimate. We looked at the number of

1:38:23other projects that we've been involved

1:38:25with around the country.

1:38:27Uh compared that uh to the cost that we

1:38:30were estimating. Obviously, there's a

1:38:31tremendous amount of contingency in the

1:38:33cost because you don't really know until

1:38:36you get into the design exactly

1:38:38what the design elements are and how

1:38:39that impacts costs. So,

1:38:41um

1:38:42but we did try to use as much as we

1:38:45could from other projects and and also

1:38:47talking with the cost estimator that has

1:38:49regional costs.

1:38:51So, you know, uh yeah, if you look at

1:38:53the the low end of our cost estimate,

1:38:56it's about not quite double what

1:38:58Framingham is.

1:39:00But again, uh not knowing exactly how we

1:39:03are going to treat each building and

1:39:05these buildings are a little more

1:39:06complicated, especially the commercial

1:39:08buildings, so there's going to be a

1:39:09little higher cost there.

1:39:11Uh Cambridge streets are more confined

1:39:13and more dense, so there's more than

1:39:15likely going to be higher cost there. Um

1:39:18and so, you know, when we looked at all

1:39:20of that and we adjusted our costs

1:39:21accordingly and then added the

1:39:22contingencies, that's kind of where the

1:39:24pricing fell. But I think the costs are

1:39:26all relatively defensible, but if you

1:39:28got into it more detailed, certainly you

1:39:31could make adjustments to those costs to

1:39:32get it uh

1:39:34to get that cost down, but you don't

1:39:36really know that until you have a design

1:39:37until you actually

1:39:39uh get into the the the process and then

1:39:41get more refined cost estimate itself.

1:39:44That's kind of where we were at with it.

1:39:46I mean, we've done a number of these

1:39:48projects and and also a lot of

1:39:50geothermal around the nation. And so

1:39:52we've pulled from a pretty large data

1:39:54bank of of costs that we know of and

1:39:56then of course again like I said we've

1:39:58applied

1:39:59a lot of contingencies and

1:40:02um escalation to that.

1:40:04>> Great. Thank you.

1:40:06Is it has a I just wanted to did you

1:40:09I just want to actually get around but

1:40:10we're we also we are supposed to end at

1:40:121:30 and I do have a few questions. So

1:40:14>> Of course. I just wanted to ask so it

1:40:16for the Pacific Street site is there is

1:40:19there a possible party that is

1:40:22interested in taking

1:40:24the lead. I'm just trying to think about

1:40:25the viability of the Pacific Street site

1:40:27since that was selected as

1:40:29possibly the most likely.

1:40:31>> Well, I'll go to Audrey and then I think

1:40:32that the key is is that we would have to

1:40:34go to the next step and say okay, what's

1:40:35next steps for the for the city and for

1:40:37this whole idea. Audrey, did you want to

1:40:40>> Yeah, I would just suggest that there's

1:40:42a lot of

1:40:43frustrated investment money now that was

1:40:45going to go into solar or wind

1:40:48that is currently looking at thermal

1:40:50networks and I would remind everybody to

1:40:52call it thermal networks rather than

1:40:53geothermal because we've already

1:40:55established that geothermal is the most

1:40:56expensive way and that might not be the

1:40:58way we want to go forward if it is

1:41:00possible in the local area. Secondly,

1:41:04the first computer um cost I think

1:41:08$55,000 personal computer cost $55,000

1:41:12not adjusted for inflation. Nobody

1:41:15resents that as a first cost because the

1:41:17cost came down a lot since then, right?

1:41:20So this is something that probably will

1:41:21be more expensive in the beginning and

1:41:23go down over time.

1:41:25Third, um

1:41:27I'm going to be having a series of

1:41:28papers

1:41:29out about both how to reduce the cost of

1:41:32thermal networks as well as how to

1:41:35compare costs across different systems.

1:41:39I suggest you look for them. The first

1:41:40one should be out in about 2 weeks. On

1:41:42my website. Thank you. Black Swan Lab,

1:41:44not Heat.

1:41:45>> Great. And also, just to remind us,

1:41:46direct energy, like all the federal

1:41:48subsidies have gone away, but direct

1:41:49energy still, I believe, pays for uh

1:41:52thermal energy networks, whereas they

1:41:53took away solar. So, it's still

1:41:54possible. If if you don't know that, I

1:41:56mean, that's as we know, the federal

1:41:57funding is not there, and yet I don't

1:41:59know if Vicinity is part of it, but

1:42:01definitely thermal energy networks are

1:42:03still on a possible federal uh

1:42:07tax break, so.

1:42:08Um so, I have a couple questions, or was

1:42:11there a couple more? Did you want to

1:42:13say anything, or and then Eric? No,

1:42:15you're okay. Or

1:42:17I can't tell.

1:42:18Okay, Eric.

1:42:19>> I I I was just going to add the the

1:42:20federal ITC is available, as well as

1:42:23potential state credits. Um you know,

1:42:25things like

1:42:27Mass Save. And so,

1:42:29taking initial construction costs into

1:42:31account is great, but understanding the

1:42:34benefits side and the potential tax

1:42:35incentives, as well, is really

1:42:37important. People see that sticker

1:42:39number of, say, 50 million, and they

1:42:41don't realize there's potentially a 30%

1:42:43tax credit that could be applied to

1:42:45that. With the caveat that there are

1:42:47some requirements to get that, and I

1:42:49believe they start sunsetting in 2032.

1:42:52So, if you don't move quick,

1:42:54you know,

1:42:55they they may not be there.

1:42:57>> Okay, so Eversource, get on it, okay.

1:42:59>> [laughter]

1:43:00>> So,

1:43:00if Did you want to I have a couple

1:43:02questions. Should I go to them?

1:43:03>> I was just going to say, Patty, would it

1:43:04be helpful? I don't know if Eversource

1:43:07has any comments about and looking at

1:43:08beyond expanding in Framingham, sort of

1:43:12next steps in terms of

1:43:14your program?

1:43:15>> Yeah, so we currently have a new

1:43:18construction filing with the DPU, and

1:43:20the purpose of that filing is to

1:43:23proceed with new project for new

1:43:25targeting new construction.

1:43:27The logic behind that is that building

1:43:29retrofits are the largest

1:43:31cost chunk essentially from the pilot.

1:43:34Behind the meter work was quite

1:43:36expensive and we would constantly run

1:43:37into unforeseen circumstances that

1:43:40require remediation like mold, asbestos,

1:43:43etc. And so by addressing new

1:43:45construction, you can really find a lot

1:43:46of cost synergies, reduce restoration

1:43:49costs, permitting, etc. And and align

1:43:52with the developer on a number of ways.

1:43:53And so

1:43:55that is currently

1:43:58a way forward that the company is

1:43:59looking towards.

1:44:02>> Again, I'm

1:44:02it's every comment is making me more

1:44:04excited about possibilities. So I did

1:44:06want to I have a couple questions so

1:44:07I'll start with MIT.

1:44:09Joe, if you could explain so it's

1:44:11totally exciting about MET. Is that now

1:44:13totally fossil fuel free? You said it's

1:44:15and some of the new building is like 70%

1:44:17more efficient. But how far along the

1:44:20term you the the MET warehouse and you

1:44:23mentioned some other new building that

1:44:24is going to be 70% you know with the

1:44:26quantum computing. How close is it to

1:44:28completely emission pollution free? And

1:44:30also in your range for the um

1:44:34thermal harvesting from MIT, you

1:44:36mentioned really making use of the waste

1:44:38the waste heat. Is the nuclear power

1:44:41plant also included in that that you're

1:44:43going to be using that for something

1:44:44helpful?

1:44:45>> Sure, great great questions. Thank you.

1:44:48Madam Chair.

1:44:49So I'd say the MET warehouse

1:44:53is is fully electrified. So it it uses

1:44:56all of electricity which is offset by

1:44:58our renewable energy certificates. So

1:45:00I'd I'd say it's probably probably 98%

1:45:05um

1:45:06fossil free. It is connected to our

1:45:08central chill water plant because we can

1:45:10make chill water very very efficiently

1:45:11with large machines in our central plant

1:45:14that are run mostly on electricity but

1:45:16it's also a byproduct of steam from our

1:45:18co-gen process during the middle of the

1:45:20summer when it's most effective for the

1:45:22utility to to to run for the grid. So so

1:45:25there's there's a small component. I

1:45:27wouldn't say it's 100% but it's probably

1:45:28like 99%.

1:45:30Um and then the same would be for the

1:45:32you know, building 39 uh quantum lab is

1:45:35you know, probably in that same same

1:45:37range. So, so we're really excited with

1:45:38that. Um so, so the question about um

1:45:41waste heat. So, so, so we have a an air

1:45:44conditioning system network around the

1:45:46campus that rejects heat from all the

1:45:47laboratories and dorms and athletic

1:45:50facilities. Um we also have a loop that

1:45:52you know, sends heat around. Um so, we

1:45:55think we can get 30 to 40% source heat

1:45:58from the air conditioning system. It's

1:46:00it's waste heat that we otherwise just

1:46:01reject to the you know, through cooling

1:46:03towers um through electric heat pump

1:46:06just like we do with the met and put it

1:46:07back into heating uh the building. So,

1:46:10that's 30 to 40% and then obviously the

1:46:13next question is the next phases of that

1:46:15heat pump plant. Where are we going to

1:46:16get um you know, more waste heat. So, um

1:46:20we're already evaluating you know, our

1:46:22our nuclear reactor which runs

1:46:24intermittently. Um we have a chilled

1:46:25water line that goes right by it. We're

1:46:27going to hook right into it and reject

1:46:28the heat from the reactor into the into

1:46:31loops. Not directly from the reactor,

1:46:32it's the cooling tower for for the

1:46:33reactor.

1:46:34Um and you know, so so again, I think we

1:46:37are insanely optimistic that the boss 10

1:46:40is going to provide the next 60 to 70%

1:46:43source energy for the future phases of

1:46:46the heat pump plant. And and and I and I

1:46:48think I would um kind of go back to we

1:46:52all learned a lot over the last couple

1:46:54of years together as as you know, the

1:46:56cities, the utility companies, our

1:46:58faculty, our students, our utility

1:47:00providers, our industry partners. I

1:47:02mean, you know, we we met the scientists

1:47:05in Germany and Denmark. We met the

1:47:06ministries, you know, we talked to the

1:47:08you know, you know, governments of you

1:47:10know, the Commonwealth. And you know, I

1:47:12think technologically, I think we

1:47:13realized that we have to go big on a

1:47:15thermal energy network um citywide. And

1:47:18and again, I think that there's no

1:47:20single network solution that fits every

1:47:22application.

1:47:24Um and I think we heard today like we

1:47:25should do this, we should do that, we

1:47:26should do that. No, what we learned in

1:47:27Germany and and Denmark that hot water,

1:47:31chilled water, ambient, individual heat

1:47:33pump solutions each have their

1:47:35appropriate applications and hybrid

1:47:37solutions are possible. And we saw that

1:47:39in Europe. So, their whole philosophy is

1:47:41use the waste energy first, then go to

1:47:44the sea or the rivers, and then you do

1:47:45your peaks with natural gas or renewable

1:47:47fuels or whatever the next kind of tech

1:47:49So, so it's layers. So, I would say

1:47:52technically we've learned a lot together

1:47:54to have this conversation. I I would

1:47:56really like to

1:47:58ask the next trip over to Denmark be

1:48:02leaders from the city of Cambridge, the

1:48:05city of Boston,

1:48:07um it needs to be Eversource, it needs

1:48:09to be Engie, and and and the

1:48:11Commonwealth, you know, the energy

1:48:13secretary. And we need to meet with the

1:48:15Ministry of Energy in in in Denmark, and

1:48:18we know the ambassador, so he's willing

1:48:19to set up that meeting. And they set it

1:48:22up, the governance, the owner operator

1:48:25model. We need the owner operator model

1:48:27first, and I think we've heard that

1:48:29discussed today. Who's going to own it?

1:48:31Who's going to monetize it? Who's going

1:48:32to operate it? Who's going to recover

1:48:34the rates through it? That's something

1:48:36that

1:48:37the next delegation, and hopefully it's

1:48:39within the next year, is going to going

1:48:41to solve. And the question is is it a is

1:48:43it a public uh utility? Is it a private

1:48:45utility? Um is it um a municipal uh

1:48:49provider? There's there's a number of

1:48:50different ways we can think about who

1:48:52owns and operates it and monetizes it

1:48:54and recovers the rates. Um and the

1:48:56Boston study is going to evaluate sort

1:48:58of like kind of those four models.

1:49:00They're going to like lightly touch it,

1:49:02but I think the next contingent is to

1:49:03really go over and talk to the people

1:49:05that do it. And they do it affordably.

1:49:07And you know, and they say here's how we

1:49:09govern it, here's how we set the rates,

1:49:11here's why all the villages sign up for

1:49:13it and take the heat better than they

1:49:15could provide it for themselves. So, I I

1:49:17I would say that's sort of if something

1:49:19comes out of this discussion is the

1:49:21technologists in the room are are kind

1:49:23of there. We we need to get the policy

1:49:25governance level there to really take

1:49:27that next big step once we get the

1:49:29results back from the Boston um early

1:49:31concept evaluation.

1:49:32>> So, I I don't say it lightly cuz we have

1:49:35to build on what's already working. So,

1:49:36it's so very much in line with with what

1:49:39it is that we hope to do and I am

1:49:41ready to go as soon as possible. So, my

1:49:43next question is for Vicinity. You

1:49:45mentioned a couple times about how this

1:49:47adoption has been faster than expected.

1:49:49You know, can you just talk about the

1:49:51lessons? Is it cuz the technology

1:49:53evolved faster than you expected?

1:49:54Financing did? Demand did? The um

1:49:57avoided costs, you know, the the

1:49:59opportunity cost of not doing it? Like

1:50:00what was it? Cuz you mentioned that a

1:50:01couple times. I think it would be maybe

1:50:03the lessons learned for

1:50:05>> Sure. Thank you, Madam Chair.

1:50:08I think what ultimately drives the rate

1:50:10of adoption is the cost that you

1:50:12approach the market with. Well, actually

1:50:13let me like take a step back. Uh

1:50:16cities setting out the right regulatory

1:50:17environments which creates a market,

1:50:19which shows buildings which direction

1:50:20we're going, and shows end users which

1:50:22direction we're going, gets everybody on

1:50:24the same page, right? So, Burdo in

1:50:25Boston, Bueto here in in Cambridge. So,

1:50:28once you've got that groundwork in

1:50:29place, approaching the market with

1:50:31something that is affordable, there's a

1:50:33direct correlation between the rate of

1:50:34adoption and the affordability that you

1:50:36come in with. And one of the things

1:50:37we've been pleasantly surprised with

1:50:39that we've been able to source

1:50:40electricity less expensive than we

1:50:41anticipated that we could.

1:50:43Uh we've also been able to deliver at

1:50:45slightly higher efficiencies than we

1:50:46anticipated. Uh and I really think that

1:50:49it was the the the price that ultimately

1:50:52sets that adoption rate. And so, that's

1:50:53what's driving it. And we didn't

1:50:55anticipate moving into design on heat

1:50:57pump two uh for quite some time, but

1:50:59we've already started design on heat

1:51:00pump two because we anticipate heat pump

1:51:02one entering the market fully

1:51:03subscribed. So, that's one of the

1:51:04reasons why I keep pushing the point.

1:51:06Affordability is not just something

1:51:07that's important in today's environment,

1:51:09but affordability sets the pace at which

1:51:11you were going to be able to entice

1:51:12people onto whatever product you're

1:51:14putting out there. And I 100% agree with

1:51:16Joe. I think a big part of being able to

1:51:18do that is showing up with the right

1:51:20tool to the right job. We look at a lot

1:51:22of different district energy systems

1:51:23across the world, and one of the ones

1:51:24that we really like is Berlin. Uh Berlin

1:51:26has multiple different temperatures,

1:51:28multiple different ways that it serves

1:51:29its end users, but it's all about

1:51:31approaching that end user with the most

1:51:32affordable product, not necessarily the

1:51:34most efficient, or not necessarily Uh

1:51:37it's about getting to the most

1:51:38affordable point, and that drives the

1:51:40rate of adoption. So, I think that's the

1:51:42underlying premise that we learned is

1:51:44work over time to try to get the cost

1:51:45down, because that'll drive the rate of

1:51:47adoption for the sustainable solution.

1:51:52>> And of course, efficiency factors into

1:51:54affordability as well, because

1:51:55>> It does. Yes.

1:51:57>> Okay, my question for Eversource is a

1:52:01couple, so I'm going to and I recognize

1:52:03First of all, I really thank you for

1:52:05being here. I know that you all are

1:52:07working on a gazillion different things.

1:52:08Plus, we're all waiting for the state to

1:52:10allow you to do things that we want you

1:52:11to do. And we very much rely on both

1:52:14private utilities and our public

1:52:16utilities. So, I'll throw a couple

1:52:18questions. Um

1:52:20How are avoided costs factored into

1:52:22decisions um at at Eversource as you do

1:52:25your long-term planning? Cuz I do think

1:52:26what we have to think about, and we as a

1:52:28city have the opportunity, just like MIT

1:52:31and Vicinity, we should be thinking in

1:52:3350-year timelines, because we are going

1:52:35to be here for 50 years, which is very

1:52:36different from some models where it's

1:52:38just like a 5-year timeline. Um that's

1:52:40um I think helpful in some ways. And

1:52:42then it is kind of related to avoided

1:52:45costs, is that need for substations, you

1:52:47know, is it possible to calculate the

1:52:49savings about not needing them if it is

1:52:52that we can get more efficient uh

1:52:53delivery of systems?

1:52:55And then, the other question is, so how

1:52:57does the fact that we're a gas island

1:53:00factor into, or should it factor into,

1:53:03the way that we as a city and you as

1:53:05Eversource as our utility

1:53:07consider going forward. So, does that

1:53:09make sense? I just love to hear your

1:53:11thoughts. And again, if I'm throwing

1:53:12things at you that are unfair and you

1:53:14have to get back to me, that's an

1:53:15appropriate answer, too.

1:53:16>> Yeah, I think for a couple of items I

1:53:17might have to might have to get back to

1:53:19you. I think in terms of the

1:53:21coordination on, you know, substations

1:53:23or avoided costs, um I think the the

1:53:26team works very closely with in

1:53:28integrated energy planning team within

1:53:30within Eversource and um there's always

1:53:33that discussion of um avoided electrical

1:53:36upgrade costs. Um

1:53:39uh there that would that that does

1:53:40factor into that does factor in the

1:53:42planning. So, that's always a good um

1:53:45discussion and relationship to have

1:53:46internally within within the within the

1:53:48utility. Um

1:53:51can you repeat the second question?

1:53:52Sorry.

1:53:53>> Yeah, just it's it's um you know,

1:53:55basically all avoided costs, how would

1:53:57that factor in? Um and then the question

1:53:59of this gas island, you know, we heard

1:54:02Cambridge is a gas island.

1:54:03Um

1:54:04And also, it's it's kind of intriguing

1:54:06to me as was also pointed out,

1:54:07Eversource is both our electric supplier

1:54:09and our gas supplier. So, if that wasn't

1:54:12the case, and I know Eversource's worked

1:54:14a long time on trying to get them. My

1:54:16understanding is that they're not

1:54:17totally separate because otherwise you

1:54:19have you can't reduce gas,

1:54:22you can't electrify cuz that reduces our

1:54:24gas, but if you can see, "No, we're just

1:54:26shifting it over."

1:54:27Um so, but it it's that gas island

1:54:29thing. Like, how how insignificant is

1:54:31that as we do our planning for for

1:54:34future decarbonization?

1:54:37>> Um yeah, again, I think I might have to

1:54:40I might have to check back and get back

1:54:42to you on that. I think in terms of the

1:54:44um again, the the coordination and as

1:54:46you said, the complete separation

1:54:48between gas and electric

1:54:50with the integrated energy planning uh

1:54:53efforts, I think that really addresses a

1:54:55lot of those um

1:54:57uh maybe like historical communication

1:54:59gaps.

1:55:00Um in terms of factoring in avoided

1:55:02energy costs, um,

1:55:05or not avoided energy costs, avoided

1:55:07costs in general, um,

1:55:09within the the the planning process, um,

1:55:13in terms of with within the energy

1:55:16integrated energy planning group, there

1:55:17are

1:55:19NPA analyses there which do factor in,

1:55:22um, which do factor in avoided costs.

1:55:25Within our project or the geothermal

1:55:28program within itself, we also again

1:55:30work with the same groups to kind of

1:55:32identify what are the avoided costs, for

1:55:34example, within the city framing within

1:55:36the Framingham pilot, um, and then as I

1:55:39mentioned within the other, uh, filings

1:55:41that we're currently working on like the

1:55:42new construction filings, again, what

1:55:44are the avoided costs that could be by

1:55:47starting in a, um,

1:55:49undeveloped undeveloped area and then

1:55:51how could that could help streamline

1:55:53costs, uh, further.

1:55:57>> Great. And then I just have one broad

1:55:59question for anybody at the table. How

1:56:01do we think about

1:56:03the health costs of continuing, you

1:56:05know,

1:56:06the the one I keep coming back to and I

1:56:07know it's

1:56:08it's only indirectly related to thermal

1:56:10energy network, but if you take my

1:56:12house, which I am slowly taking

1:56:14appliances and replacing them with

1:56:16electric, but we are not all electric,

1:56:18but I know that every single study shows

1:56:20that every gas stove in the city is

1:56:22increasing the possible asthma, which we

1:56:24know vulnerable populations also have,

1:56:27you know, we know that our

1:56:28low-income population is way more prone

1:56:30to asthma because they probably also

1:56:32live near So, I think the question is

1:56:33how do we and I don't know if you see

1:56:34any or others factor in and ensure that

1:56:37as we move forward, we're also

1:56:38understanding that there's a public

1:56:40health benefit, which is also a direct

1:56:42cost savings in terms of health. If that

1:56:45makes sense, I'll just anybody, I guess

1:56:46the maybe Audrey or Eric, does anybody

1:56:48do that in their planning?

1:56:52>> I'm I'm happy to chime in first and the

1:56:54short answer is no, not to my knowledge.

1:56:57Um, there are some studies that are

1:56:58looking to quantify it, but especially

1:57:01that gap of quantifying it and then

1:57:03turning around and saying this is how

1:57:05much benefit we're going to assign to

1:57:07the project.

1:57:08That typically doesn't take place.

1:57:10And that's the case as well touching on

1:57:13the electric grid point.

1:57:15We struggle with that here, too. We have

1:57:18a quantification of what the utilities

1:57:20are projecting the grid needs to do over

1:57:22the next 10, 15, 25 years. But that

1:57:26mechanism for saying the electric sector

1:57:29modernization plans that have been filed

1:57:31by the utilities project X at a cost of

1:57:34Y, if we offset this amount of load with

1:57:37a thermal network, we should be able to

1:57:39quantify what the value of that is.

1:57:42But assigning it to the project, that's

1:57:44the real challenge. There is no

1:57:46mechanism for taking a benefit from one

1:57:48part of the grid and assigning it to a

1:57:50different utility or a different part of

1:57:52the grid. So it's something we really

1:57:53need to think about, and there's work

1:57:56actively going on looking at this. And

1:57:59you know, I'm sure in the future we can

1:58:01find a way to say we've reduced peak

1:58:03load by this amount here in Cambridge.

1:58:06That has a value, and we're going to

1:58:07offset project costs with it.

1:58:13>> Um as

1:58:15uh

1:58:16one of the people responsible as the the

1:58:17starter of the study about gas chemistry

1:58:21that was issued by Harvard University,

1:58:24it came because I was part of research

1:58:26in Aliso Aliso Canyon at the largest gas

1:58:29leak in the country, and people were

1:58:31calling me to say my kid has had a

1:58:33nosebleed for 3 days. What's in the gas?

1:58:36People were calling me to say I am I

1:58:39feel seasick. I have for 3 weeks. What's

1:58:41in that gas? And so I I think part of

1:58:45the health impacts is always critical to

1:58:48think about. And I am super happy also

1:58:51just that Boston is such a big part of

1:58:53all of this conversation because I

1:58:55helped to start that with Dennis

1:58:56Carlberg

1:58:57and I'm so grateful. And then third I

1:59:00would say one possible way forward for

1:59:03Cambridge that would be a no regrets

1:59:04solution is Providence Rhode Island is

1:59:07looking at every single school that they

1:59:10are about to retrofit and assuming that

1:59:13that becomes a clean thermal power plant

1:59:17for the neighborhood.

1:59:19Put the bore holes there in the under

1:59:21the athletic fields under the

1:59:22playgrounds etc. And pay for it with the

1:59:27revenue coming in from the neighborhood.

1:59:30That would also reduce thermal drift

1:59:32technical language.

1:59:36>> Joe and then

1:59:38>> Sure. Uh

1:59:39So um our office of of sustainability

1:59:43um worked with MIT's Institute

1:59:44researchers on just that question is

1:59:47what's the framework that assesses not

1:59:49only the avoided emissions from from

1:59:51efforts but also the economic and health

1:59:53outcomes. And as you all know

1:59:55um the city of Cambridge and 11 other

1:59:56organizations came together to create

1:59:58these large-scale and enable these

2:00:00large-scale wind and solar projects. And

2:00:02and our researchers started to quantify

2:00:04it in terms of you know that the the

2:00:07economic benefits are you know one year

2:00:09construction jobs. So creating 7,000 one

2:00:12year construction jobs, 189 maintenance

2:00:15jobs over 20 years. But the health

2:00:17benefits they they kind of measured it

2:00:18in a couple of ways. Um but the one

2:00:21metric that they started to settle on is

2:00:23you know 640 people quitting smoking for

2:00:26life.

2:00:27Or nearly 200 premature deaths avoided

2:00:30each 20 years from the benefits of these

2:00:31projects. So we have research teams that

2:00:33if you can get projects to avoided

2:00:35emissions, they can start to translate

2:00:37it into and you know these these sort of

2:00:39standard models to actually quantify

2:00:42those benefits. So yes,

2:00:44it's we have folks out there working on

2:00:45that and can help with any any study

2:00:47that to add those metrics.

2:00:50>> So it is something as an organization

2:00:52that has had to secure a substantial

2:00:53amount of funding for what we're

2:00:55currently doing.

2:00:57I can talk a little bit about how

2:00:59when you're looking to source funding,

2:01:01how arguments like how it affects our

2:01:03health plays a part. So it first it

2:01:06helps underwrite our core mission of

2:01:07vicinity why we're doing what we're

2:01:08doing.

2:01:09We've also found that when looking to

2:01:12source capital

2:01:14showing up there are sources out there

2:01:16that are willing to contribute at rates

2:01:17that are

2:01:18more competitive if you are showing up

2:01:19with projects that are moving the

2:01:21sustainability forward

2:01:23or or improving the health and wellness

2:01:25of citizens within cities. So it's not

2:01:27something that we emphasize when we are

2:01:29out there raising funds, but I think it

2:01:31is something that we usually lean

2:01:32heavily into the sustainability front,

2:01:34but I think it is something that that

2:01:36when people are looking to raise money,

2:01:37you will find out that there are other

2:01:39money sources out there if you do show

2:01:40up with these kind of solutions for for

2:01:42our cities. I think it's something that

2:01:43we'll look to emphasize more as we're

2:01:45trying to raise those type of funds. It

2:01:46can only help.

2:01:49>> I mean to call them externalities when

2:01:52they're intrinsic is

2:01:54part of the problem.

2:01:55Anyway, we're

2:01:56I don't know if DC I Watkins you wanted

2:01:58to add anything or anyone cuz I think

2:02:00we're pretty close. Anyone Matt? No?

2:02:03We're all good?

2:02:05Do we do I just say that time of the

2:02:07meeting having come we are adjourned or

2:02:09do I have to have an adjournment?

2:02:11>> You can do a voice vote to adjourn.

2:02:13>> Okay.

2:02:15On adjournment, all those in favor.

2:02:18>> Aye.

2:02:18>> Aye.

2:02:19>> Those opposed? The eyes have it. We are

2:02:21adjourned and we are so grateful cuz I

2:02:24actually feel like I should have said we

2:02:25were going to recess cuz we want to

2:02:27reconvene you all because I think this

2:02:29was really really helpful and that's how

2:02:34we're going to move forward. So um

2:02:36in this kind of collaborative and

2:02:39being honest with each other about about

2:02:41various questions. So, thank you so

2:02:43much.

2:03:04>> [music]

2:03:10[music]

2:03:21[music]

2:03:35[music]

2:03:50>> During the sweep season, which is April

2:03:521st through December 31st, we remove

2:03:55about 1,400 tons of street cleaning

2:03:59debris from the streets of Cambridge.

2:04:00About 60% of that, [music] maybe 800

2:04:03tons or so, is during the fall months,

2:04:06which we consider to be leaf season,

2:04:08October, November, and December.

2:04:12>> [music]

2:04:13>> The number of people that it takes to

2:04:15perform this operation typically is

2:04:18seven [music] people. During leaf

2:04:19season, and in particular during the

2:04:21month of November, that doubles because

2:04:23we add two vacuum sweeper operators, and

2:04:27we add four hand crew personnel who use

2:04:30hand blowers, leaf [music] blowers, to

2:04:32blow accumulated leaves out from

2:04:34underneath parked cars. Street cleaning

2:04:36is important year-round. From an

2:04:38environmental consideration, the grit

2:04:40and phosphorus loading in the Charles

2:04:41River, but also [music] from a quality

2:04:43of life consideration for Cambridge

2:04:45residents. The best thing that residents

2:04:47can do to help the program is to move

2:04:49their cars on street cleaning day.

2:04:53>> [music]

2:05:01[music]

2:05:07[music]

2:05:17[music]

2:05:24[music]

2:05:28>> Hello, my name is Alyssa Donovan and I

2:05:30serve as the victim advocate at the

2:05:31Cambridge Police Department. In my role,

2:05:33I provide support, resources, and

2:05:36advocacy to individuals and families

2:05:38affected by crime, especially those

2:05:40impacted by domestic violence and sexual

2:05:42assault.

2:05:43As an advocate, my goal is to ensure

2:05:45that survivors receive the care,

2:05:47respect, and guidance they need during

2:05:50what can be a very difficult time.

2:05:52We all have a role to play in ending

2:05:54sexual violence and creating a safe,

2:05:57supportive community for survivors.

2:05:59>> [music]

2:05:59>> Here in Cambridge, that belief has

2:06:01shaped how we work to strengthen our

2:06:03response to sexual violence.

2:06:07As our understanding of trauma deepened,

2:06:09it became clear that our department,

2:06:11alongside the broader community, needed

2:06:13to expand our efforts to provide better

2:06:15support for survivors of sexual violence

2:06:18>> [music]

2:06:18>> here in Cambridge.

2:06:20From this need in 2016, the Cambridge

2:06:22Police Department's Trauma Informed Law

2:06:24Enforcement Initiative was born. This

2:06:27initiative was designed to ensure that

2:06:29our approach to survivors

2:06:30>> [music]

2:06:31>> is grounded in trauma informed care,

2:06:33prioritizing sensitivity, respect, and

2:06:36understanding in every interaction.

2:06:38[music]

2:06:39To achieve this, we take deliberate

2:06:40steps through education, training,

2:06:43>> [music]

2:06:43>> and practice.

2:06:44This includes specialized training on

2:06:46trauma informed interviewing, victim

2:06:48[music] advocacy, and the psychological

2:06:50impact of sexual violence and trauma. We

2:06:53also work with experts across the

2:06:55country, learning from leading

2:06:56professionals in the field to ensure our

2:06:59officers and advocates are equipped with

2:07:01the knowledge and tools needed to

2:07:03effectively support survivors. By

2:07:05incorporating these practices, we have

2:07:07transformed our approach to sexual

2:07:09assault investigations to be more

2:07:11compassionate, informed, [music] and

2:07:13survivor centered.

2:07:15At the Cambridge Police Department

2:07:16Sexual Assault Unit, we offer several

2:07:18avenues of support for survivors. This

2:07:21includes victim advocacy services such

2:07:23as emotional support, safety planning,

2:07:26assistance with navigating the legal

2:07:27system,

2:07:28>> [music]

2:07:28>> and information about available

2:07:30resources like counseling and support

2:07:32groups. Victim advocates and detectives

2:07:35work together to prioritize survivors'

2:07:37needs, ensuring a thorough,

2:07:39compassionate investigation using

2:07:41[music] trauma informed approaches every

2:07:43step of the way. Our detectives are

2:07:45trained to handle sensitive cases

2:07:48[music] with the utmost care and

2:07:49diligence, collaborating with

2:07:51prosecutors and other agencies to bring

2:07:54healing and justice to those affected by

2:07:57sexual [music] violence.

2:07:58As a community, we all have a role to

2:08:00play in supporting survivors. By

2:08:02creating safe, compassionate spaces and

2:08:05listening without judgment, we help

2:08:07survivors heal and empower them to

2:08:09reclaim their voice. When we lead with

2:08:11empathy and act with intention, we don't

2:08:14just raise awareness. We build a future

2:08:17where every survivor is heard, believed,

2:08:20and supported, and where silence and

2:08:22shame no longer have a place.

2:08:24If you or someone you know needs

2:08:26assistance, please don't hesitate to

2:08:28call the Cambridge Police Department or

2:08:30to visit our website to learn more about

2:08:32available services.

2:08:34If reaching out to the police feels

2:08:35overwhelming, the Boston Area Rape

2:08:37Crisis Center offers a 24/7 confidential

2:08:40hotline to help survivors explore their

2:08:43options

2:08:43>> [music]

2:08:44>> and receive emotional support. To every

2:08:46survivor, you are not alone. Your voice

2:08:49matters and we are here to support you

2:08:51every step of the way.

2:09:13>> [music]

2:09:23[music]

2:09:32[music]

2:09:42[music]

2:09:51[music]

2:09:57[music]

2:10:01>> Across Cambridge, almost 6,000 storm

2:10:03drains help prevent street flooding by

2:10:04collecting storm water off of the

2:10:05streets.

2:10:07City crews work diligently to clear the

2:10:08storm drains before and after rain

2:10:10events, but with thousands across

2:10:11Cambridge, the job goes much faster with

2:10:13community help. Cambridge's storm sewers

2:10:15program is a way for residents to help

2:10:17keep storm drains clear so rain water

2:10:19can easily flow into the drain.

2:10:21Clearing storm drains of trash and

2:10:23leaves also prevents these materials

2:10:25from washing downstream, which

2:10:26contributes to pollution of our local

2:10:28rivers.

2:10:29As a storm steward volunteer, you choose

2:10:31a drain near your home or neighborhood,

2:10:33give it a name, and commit to checking

2:10:35on it about once a month, especially

2:10:37before big rain events.

2:10:39You don't need many supplies to be a

2:10:40storm steward. Some gloves, a trash bag

2:10:43for collected litter, a yard waste

2:10:45barrel or bag for collected leaves, and

2:10:47a rake, broom, or shovel.

2:10:49When you visit your drain, first pick up

2:10:51any litter or recyclable materials.

2:10:53These materials can be disposed with

2:10:55your regular curbside trash and

2:10:56recycling for pickup. Next, clear away

2:10:58leaves and anything else that might be

2:11:00blocking the drain. You can use your

2:11:01hands or rake or broom. If you can, it's

2:11:04good to also clear a few feet around the

2:11:06drain to help keep it clear.

2:11:07>> [music]

2:11:08>> Stay safe, work from the sidewalk, and

2:11:10be mindful of traffic.

2:11:12With regular care, storm drains usually

2:11:13take only a few minutes to clear each

2:11:15month.

2:11:16And it makes a big difference across the

2:11:18city the next time it rains.

2:11:19>> [music]

2:11:20>> To sign up, visit

2:11:21cambridgema.gov/stormwater/residents

2:11:24to find a drain in your neighborhood and

2:11:26sign up to be a storm steward.

2:11:27>> [music]

2:11:27>> Any Cambridge resident can join, and you

2:11:29can take care of as many drains as you'd

2:11:31like. Together, we can keep Cambridge's

2:11:32streets clear and our waterways clean.

2:11:42>> [music]

2:11:51[music]

2:12:01[music]

2:12:08[music]

2:12:18[music]

2:12:20>> How to register? Not registered to vote

2:12:22in Cambridge? It's easy to do.

2:12:25You can come to our new Election

2:12:26Commission office at 689 Massachusetts

2:12:30Avenue in Central Square.

2:12:32Or you can register online at

2:12:34registertovoteMA.com. [music]

2:12:36Or you can mail in a registration form.

2:12:39You must be a US citizen, a Cambridge

2:12:41resident, and 18 years or older by

2:12:44election day.

2:12:46If you are 16 or 17 years of age, you

2:12:48may pre-register.

2:12:50For more information on Cambridge

2:12:51municipal election, visit

2:12:53cambridgema.gov/elections

2:12:56or call us at 617-349-4361.

2:13:00If you need an interpreter regarding

2:13:02questions about voting in Cambridge,

2:13:04please call 617-865-2273.

2:13:08>> [music]

2:13:08>> Register today and take the first step

2:13:10towards voting.

2:13:20>> [music]

2:13:25>> Believe it or not, this was the site

2:13:27[music] of the waterline on the night of

2:13:29April 18th, 1775,

2:13:31when the British soldiers came ashore.

2:13:34You might not think [music] of that now,

2:13:35since the Charles River is so far away,

2:13:38but during the time of the Revolutionary

2:13:40War, this was the tidal flat. The

2:13:43Cambridge poet Henry Wadsworth

2:13:44Longfellow made famous [music] the

2:13:46expression "One if by land, two if by

2:13:48sea" in his poem Paul Revere's Ride.

2:13:54What [music] many people don't realize

2:13:55is that the two if by sea portion meant

2:13:58that the British troops landed in East

2:14:00Cambridge. On the night of April 18th

2:14:02and 19th, [music]

2:14:031775, when the Charles River covered a

2:14:06larger area of East Cambridge, British

2:14:08officers chose [music] to sail from

2:14:10Boston to East Cambridge because it was

2:14:12one of the shortest and least

2:14:13conspicuous routes to what would become

2:14:15known [music] as the Battle of Lexington

2:14:17and Concord.

2:14:48>> Hi, I'm [music] Carolina Almonte,

2:14:50executive director of the Commission on

2:14:52Immigrant Rights and Citizenship. Right

2:14:55now, one of the most important things we

2:14:57can do as a community is make sure

2:14:59people understand their rights. Our

2:15:01commission works to support and protect

2:15:03immigrant residents and visitors in

2:15:05Cambridge. [music]

2:15:06That includes connecting people to

2:15:08resources, advocating for policies, and

2:15:10most importantly, making sure people

2:15:12have access to accurate information.

2:15:15>> [music]

2:15:15>> One of the key areas we focus on is know

2:15:17your rights education. So, what does

2:15:20that mean?

2:15:21It means helping people understand what

2:15:23to do if they encounter immigration

2:15:25enforcement. It means knowing that you

2:15:27have the right to remain silent, [music]

2:15:29that you have the right to not open your

2:15:31door unless officers present a valid

2:15:33judicial warrant, and that you have the

2:15:35right to speak with an attorney.

2:15:37These rights apply regardless of

2:15:40immigration status.

2:15:41>> [music]

2:15:41>> Until next time, stay informed and stand

2:15:44in your power.

2:15:57>> [music]

2:16:23[music]

2:16:37[music]

2:16:45[music]

2:16:53>> During the sweep season, which is April

2:16:561st through December 31st, we remove

2:16:58about 1,400 tons of street cleaning

2:17:02debris from the streets of Cambridge.

2:17:03>> About 60% of that, [music] maybe 800

2:17:06tons or so, is during the fall months,

2:17:09which we consider to be leaf season,

2:17:11October, November, and December.

2:17:15>> [music]

2:17:16>> The number of people that it takes to

2:17:18perform this operation typically is

2:17:21seven