Your options

Electricity supplier: If you participate in Chelmsford Choice, Dynegy will appear on your National Grid electric bill as your electricity supplier from December 2023 forward. (Previously, Constellation was the program’s electricity supplier.) View an example National Grid bill.

Electricity mix: The program’s electricity supplier is required to provide an energy mix disclosure label that offers details about all of the sources of electricity provided. Visit the Resources page to download the most recent label.

Compare prices: Use the tables below to compare Chelmsford Choice prices with National Grid’s current Basic Service price, or use the online calculator to compare with National Grid’s most recent 12-month average price.

New prices coming soon: November 2023 – November 2025

Scroll down to see current program prices below this table. 

	(automatic enrollment)	62% from new regional renewable energy resources (option)	100% from new regional renewable energy resources** (option)	National Grid’s Basic Service (if you opt out)
Price	14.843 ¢/kWh*	16.415 ¢/kWh*	17.849 ¢/kWh*	18.213 ¢/kWh – residential 17.262 ¢/kWh – commercial 21.015 ¢/kWh – industrial
Price period	November 2023 – November 2025	November 2023 – November 2025	November 2023 – November 2025	November 1, 2023 – July 31, 2024, residential & commercial. November 1, 2023 – January 31, 2024, industrial.
Renewable energy content From new regional resources (MA Class I RECs)
Added by Chelmsford	–	40% – 2023 40% – 2024 40% – 2025	78% – 2023 76% – 2024 73% – 2025	–
Required by state law	22% – 2023 24% – 2024 27% – 2025	22% – 2023 24% – 2024 27% – 2025	22% – 2023 24% – 2024 27% – 2025	22% – 2023 24% – 2024 27% – 2025
Total	22% – 2023 24% – 2024 27% – 2025	62% – 2023 64% – 2024 67% – 2025	100% – 2023 100% – 2024 100% – 2025	22% – 2023 24% – 2024 27% – 2025
From other clean or renewable sources required by state law	37% – 2023 38% – 2024 36% – 2025	37% – 2023 38% – 2024 36% – 2025	37% – 2023 38% – 2024 36% – 2025	37% – 2023 38% – 2024 36% – 2025
Exit terms	Leave any time. No exit charge.	Leave any time. No exit charge.	Leave any time. No exit charge.	Leave any time. No exit charge. However, industrial customers only (rates G-2 and G-3) on the fixed-price Basic Service option may receive a billing adjustment, which may be either a credit or a charge.

Current program prices through November 2023

	(automatic enrollment)	62% from new regional renewable energy resources (option)	100% from new regional renewable energy resources** (option)	National Grid’s Basic Service (if you opt out)
Price	10.042 ¢/kWh*	11.484 ¢/kWh*	13.015 ¢/kWh*	18.213 ¢/kWh – residential 17.262 ¢/kWh – commercial 21.015 ¢/kWh – industrial
Renewable energy content From new regional resources (MA Class I RECs), added by Chelmsford	–	40%	78%	–
From new regional resources (MA Class I RECs), required by state law	22%	22%	22%	22%
Additional renewable or clean energy, required by state law	37.2%	37.2%	37.2%	37.2%
Price period	Enrollment – November 2023	Enrollment – November 2023	Enrollment – November 2023	November 1, 2023 – July 31, 2024, residential & commercial. November 1, 2023 – January 31, 2024, industrial.
Exit terms	Leave any time. No exit charge.	Leave any time. No exit charge.	Leave any time. No exit charge.	Leave any time. No exit charge. However, industrial customers only (rates G-2 and G-3) on the fixed-price Basic Service option may receive a billing adjustment, which may be either a credit or a charge.

* Prices include a $0.001/kWh administrative fee. Program prices could increase as a result of a change in law that results in a direct, material increase in costs during the term of the electricity supply agreement. Program prices apply only to the electricity supply portion of your National Grid electric bill. Delivery charges on your National Grid electric bill are not affected by participation in Chelmsford Choice. Some large commercial accounts may not be eligible for program pricing at the time of enrollment and may instead be offered market pricing. Visit the FAQ page for more information.

** Chelmsford Choice Greenest is a 100% MA Class I offering, which means it includes the minimum amount of MA Class I RECs required by law each year plus the additional amount needed to reach 100%. Chelmsford’s electricity supplier must also purchase other renewable energy from other clean or renewable sources to meet state requirements. As a result, the total of the renewable content for Chelmsford Choice Greenest exceeds 100%.