21.49¢
per kWh, 2025
[ Eversource Massachusetts / MA ]
Eversource Massachusetts electricity rates in Massachusetts
NO RATE CASE ON FILE · DATA 2025
change in average rate, 2024→2025
−28.1%
vs 2024
1,274,856
residential customers
−4.0%
since 2020
What your bill becomes
Bill today
No change on file
Difference / month · / year
Estimated at Eversource Massachusetts's average effective residential rate (21.49¢/kWh, EIA, all charges included). Your tariff, fees and taxes differ.
Rate history 2015–2025
| Year | ¢/kWh | Change | Customers |
|---|---|---|---|
| 2015 | 21.13¢ | — | 1,063,565 |
| 2016 | 20.18¢ | −4.5% | 1,024,972 |
| 2017 | 21.03¢ | +4.2% | 1,030,322 |
| 2018 | 23.06¢ | +9.7% | 1,230,516 |
| 2019 | 22.53¢ | −2.3% | 1,239,884 |
| 2020 | 22.39¢ | −0.6% | 1,246,086 |
| 2021 | 24.25¢ | +8.3% | 1,255,128 |
| 2022 | 29.31¢ | +20.9% | 1,289,709 |
| 2023 | 29.66¢ | +1.2% | 1,283,644 |
| 2024 | 29.91¢ | +0.8% | 1,303,076 |
| 2025 | 21.49¢ | −28.1% | 1,274,856 |
How this compares
30.41¢
Massachusetts average, 2025
−29.3%
Eversource Massachusetts vs MA 2025 average
+24.7%
vs US 2025 average
#4
priciest in MA
Eversource Massachusetts files with the EIA as NSTAR Electric Company (utility ID 54913).
Serves 11 counties in Massachusetts: Barnstable, Berkshire, Bristol, Dukes, Franklin, Hampden, Hampshire, Middlesex, Norfolk, Plymouth, Suffolk. 289 ZIP codes.
What the numbers show
Since 2015, Eversource Massachusetts's average residential rate has gone from 21.13¢ to 21.49¢ per kWh: +1.7% over 10 years, or about +0.2% a year. It rose in 6 of the 10 years we can compare, and the biggest one-year increase was +20.9% in 2022. The largest drop was −28.1% in 2025.
For a home using 596 kWh a month, the Massachusetts average, Eversource Massachusetts's 2025 rate works out to about $1,537 a year, $638 less than at Massachusetts's average rate of 30.41¢. Of the 20 Massachusetts utilities in our data with a 2025 price, it is the 4th most expensive.
Eversource Massachusetts served 1,063,565 homes in 2015 and 1,274,856 in 2025 (+19.9%), about 42% of Massachusetts's residential electricity customers.
Who sets Eversource Massachusetts's rates
Eversource Massachusetts is investor-owned, so it can change its base rates only by filing a rate case with the Massachusetts Department of Public Utilities. The commission holds hearings and takes public comment before it rules, and it usually approves less than the company asks for. Fuel and other pass-through charges can change between rate cases.
Commission contact: Massachusetts Department of Public Utilities. How we calculate every figure on this page: methodology.
Questions
Is Eversource Massachusetts raising rates in 2026?
No rate case for Eversource Massachusetts is on file with the Massachusetts Department of Public Utilities in our tracker. Its average residential rate moved −28.1% from 2024 to 2025. We check the commission docket monthly.
What does Eversource Massachusetts charge per kWh?
Eversource Massachusetts's average effective residential rate was 21.49¢ per kWh in 2025 (EIA-861, revenue divided by sales, all charges included). Massachusetts's 2025 average was 30.41¢.
How much have Eversource Massachusetts rates gone up in five years?
−4.0% between 2020 and 2025, against +33.3% for Massachusetts as a whole over the latest five-year window.
How many customers does Eversource Massachusetts have in Massachusetts?
1,274,856 residential customers in 2025, across 11 counties including Barnstable, Berkshire, Bristol, according to the EIA-861 survey.
Where do these numbers come from?
Rates and customer counts are from the US Energy Information Administration's annual EIA-861 survey, which every US utility files. Nothing here is a utility bill; use it to understand the direction and size of changes.
Sources
- EIA-861 Sales to Ultimate Customers, 2015–2025 (released 2026-10-07)
- EIA-861M monthly state averages through Jul 2026
- NREL utility-by-ZIP lookup (2024)