Dedham CEA is a program offered by the town of Dedham to provide new electricity supply options and more renewable energy to Dedham residents and businesses.  The delivery of electricity and billing for use is still completed through Eversource, so customers continue to receive one bill from the utility.

Electricity Options

The program adds 10% of renewable energy certificates to the standard option, and also offers an option with 100% total energy from renewable energy certificates so you can make an even bigger impact in your support for renewable energy resources in New England. You can sign up for either option, choose a basic option without extra renewable electrify, return to the default or leave the program at any time. You can also check the sample bill for an illustration of a simple way to tell if you a part of the CEA program.

Please note: Prices for all products in the program include a $0.001/kWh administration fee. Program prices apply only to the electricity supply portion of your electric bill. Delivery charges on your electric bill are not affected by the program.

If you are a new medium, large or very large business customer, or if you have previously opted out of the Program, the supplier has the option to offer a market price. Market prices will be offered by the electricity supplier in writing or phone, and you will not be enrolled in that price unless you affirmatively accept.

RECs are the accepted legal instrument used to track renewable energy generation and to substantiate claims of renewable energy use. The additional RECs voluntarily purchased by the program qualify for MA Class I designation.

See Eversource Basic Service supply prices for residential customers here and for business customers here.

*Disclaimer: A goal of the CEA program is to produce savings for customers, but savings cannot be guaranteed compared to the utility’s Basic Service rate which changes every three months for industrial customers and every six months for residential and small commercial customers. The aggregation program seeks to provide price stability and average savings over the full term of the program, but because future Basic Service rates are not known, there is no guarantee of savings

Enroll or change electricity supply product

If you’re already participating in the Community Electricity Aggregation program, you can also use this form to change products.

If you are not participating in the Community Electricity Aggregation program, you can use this online form to enroll in one of the Community Electricity Aggregation options. Full enrollment in your chosen product is pending, based on the utility’s acceptance of your submission. If accepted, your program rate will be reflected in the Supply section of your utility bill in one to two billing cycles. 

If you are currently a customer of a competitive supplier, you may be subject to penalties or early termination fees from your supplier if you switch from the competitive supplier to the Program during the term of your contract. There is no charge for leaving Basic Service, however, Industrial customers leaving fixed-price Basic Service may receive a billing adjustment that may be a credit or a charge.

Be sure to use the name and address associated with the account!

Renewable Energy in the Dedham CEA program

Dedham CEA is committed to supporting the growth of new renewable energy generation in our region. While the Commonwealth requires electricity consumers to include more renewable energy generation over time, the pace of change needs to be faster to mitigate the effects of climate change. Dedham CEA is leveraging the buying power of our community to support renewable energy generation in New England.

Using our combined buying power for change

Dedham’s standard product, Local Green, includes 10% Renewable Energy Certificates (MA Class I RECs), in addition to the requirements of the Commonwealth (Read more about the renewable energy requirements in Massachusetts). Most residents and businesses in Dedham participate in the program and use the Local Green product. Across our entire community, these additional REC purchases add up to a substantial impact. For those who want to accelerate the transition to a sustainable future, the Dedham CEA offers an electricity product renewable energy certificates (MA Class I RECs) to total 100% renewable energy. 

RECs are the accepted legal instrument used to track renewable energy generation and to substantiate claims of renewable energy use. 

Supporting renewable resources on our electricity grid

All of the additional RECs in Dedham CEA come from MA Class I resources that are part of our ISO-New England electricity grid. This means the energy sources are located in New England or the energy is imported as allowed by ISO-New England from locations such as New York or eastern Canada. 

Dedham CEA goes even further: all of our MA Class I RECs come from sources exclusively located in New England. See below for a map of our sources.

Location matters

Our REC purchases stands in contrast to some electricity supplies who obtain RECs from national sources (e.g. Texas), where the electricity is not part of our ISO-New England electricity grid.  These suppliers  purchase national wind RECs for a fraction of the cost of a New England equivalent, but you get what you pay for: national wind RECs are cheap because places like Texas, where they are often sourced, don’t have high development costs for energy projects. To change our electricity generation from burning natural gas and other fossil fuels to renewable sources, our program purchases RECs that are sourced in New England and meet the MA Class I standards. That way, our program is supporting the fuel shift and the transition to a sustainable future. 

Supporting Zero-Emission and Methane-Destroying sources

Dedham CEA’s extra RECs only come from zero emission sources, such as solar, wind, low impact hydropower¹, and sources that destroy methane, such as anaerobic digestion. Methane has a global warming potential (GWP) 28-36 times greater than CO₂ over a 100 year period². Combustion destroys methane and releases some CO₂, resulting in a net reduction in GWP. Other forms of biomass are explicitly not purchased, due to their positive emissions of CO₂ during their life cycles.

Sources of our Renewable Energy Generation

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1 Hydro projects that do not exceed 30 MW built after 1997 or have capacity additions or efficiency improvements made after 1997 (MA Class I eligible), and Low Impact Hydro Institute (LIHI) certified.

2 Methane has a global warming potential (GWP) 28-36 times greater than CO2 over a 100 year period. Combustion destroys methane and releases some CO2, resulting in a net reduction in GWP. For more, see Environmental Protection Agency, Understanding Global Warming Potentials.  https://www.epa.gov/ghgemissions/understanding-global-warming-potentials

Support and information

If you have questions about your participation, contact the electricity supplier, Constellation at (833) 461-0813, or by email at vst@constellation.com. For general program questions you can reach Good Energy, the consultant that manages the Program, by submitting an inquiry or comment by completing the Contact Us form.

Use our bill calculator to compare the monthly costs of CEA and Utility’s Basic Service.

Dedham CEA is overseen by the Town Manager’s Office.

How to leave Dedham CEA program

If you do not wish to participate in the CEA program, you may submit the opt-out form below or contact the current program supplier, Constellation at (833) 461-0813.

Compare rates for the Dedham CEA program with Eversource

ENTER MONTHLY KWH:
DEDHAM COMMUNITY ELECTRICITY AGREGGATION RATES (December 2023 until November 2025 Meter Reads)
PRODUCT OPTIONS	RATE	Monthly Supply Cost
DEDHAM STANDARD Adds 10% Renewable Energy	$0.16718	$
DEDHAM PLUS Adds Renewable Energy to Total 100%	$0.17282	$
DEDHAM BASIC No Additional Renewable Energy	$0.15784	$
EVERSOURCE RATES August 1, 2025 – January 31, 2026
RATE CLASS	RATE	Monthly Supply Cost
RESIDENTIAL	$0.14884	$
SMALL BUSINESS & LIGHTING	$0.15150	$
LARGE BUSINESS (NEMA) November 1, 2025 – January 31, 2026	$0.18127	$

Disclaimer: A goal of the CEA program is to produce savings for customers, but savings cannot be guaranteed compared to the utility’s basic service rate which changes every six months for Residential and Commercial customers, and every three months for Industrial customers. The aggregation program seeks to provide price stability and average savings over the full term of the program, but because future basic service rates are not known, there is no guarantee of savings.

More Ways to Save

• Opt-down to Dedham Basic: Customers seeking greater financial relief can opt down to Dedham Basic. Click here to enroll.
• Low-Income Discount: Eversource in Massachusetts provides a 42% discount to low-income customers that apply to the entire bill, including the cost of Dedham CEA supply. Go to this page to enroll. 
• Heat Pump Discount Rate: Starting November 1, 2025, most electricity customers with heat pumps will receive a discount through Eversource’s ‘heat pump’ delivery rate. This discount applies only to the delivery portion of electric bills, so customers in this community’s aggregation program remain eligible and can enjoy added savings. 
  • Automatic enrollment: Customers with Mass Save®-supported heat pumps installed on or after Jan 1, 2019 will be automatically enrolled starting Nov 1, 2025 — no action needed.
  • Winter discount: Reduced delivery rates apply Nov 1 – Apr 30 each year.
  • Estimated savings: About $540 per winter (Mass. DPU).
  • No impact on supply: Only affects delivery charges; aggregation supply rates stay the same.
  • Non-heat-pump customers: Remain on standard delivery rates.
  • Enrollment notices: Will be sent prior to the November 1, 2025 enrollment date.
  • Manual enrollment: All other customers need to reach out to Eversource to enroll. 

Check Eversource’s heat pump rate page to find more information about signing up. For more information on heat pumps, check out this helpful FAQ from Mass Save.  

Program Materials

Tax Receipts for Additional (Voluntary) Renewable Energy

The payments you make for additional renewable energy are federally tax-deductible as charitable contributions. After January 31st of each year, request your previous year’s tax receipt from the nonprofit that supplies our community’s additional renewable energy, Green Energy Consumers Alliance, at GreenEnergyConsumers.org/TaxReceipts. Green Energy Consumers Alliance may also notify you via email.

Documents

2024 Program Documents

2023 Program Documents