33.66¢
per kWh, 2025
[ National Grid Massachusetts / MA ]
National Grid Massachusetts electricity rates in Massachusetts
NO RATE CASE ON FILE · DATA 2025
change in average rate, 2024→2025
+0.2%
vs 2024
1,231,865
residential customers
+39.7%
since 2020
What your bill becomes
Bill today
No change on file
Difference / month · / year
Estimated at National Grid Massachusetts's average effective residential rate (33.66¢/kWh, EIA, all charges included). Your tariff, fees and taxes differ.
Rate history 2015–2025
| Year | ¢/kWh | Change | Customers |
|---|---|---|---|
| 2015 | 20.50¢ | — | 1,147,218 |
| 2016 | 19.18¢ | −6.4% | 1,134,656 |
| 2017 | 20.88¢ | +8.9% | 1,145,508 |
| 2018 | 23.10¢ | +10.6% | 1,154,091 |
| 2019 | 23.83¢ | +3.2% | 1,158,014 |
| 2020 | 24.10¢ | +1.1% | 1,167,673 |
| 2021 | 24.92¢ | +3.4% | 1,180,912 |
| 2022 | 28.53¢ | +14.5% | 1,190,858 |
| 2023 | 36.72¢ | +28.7% | 1,194,413 |
| 2024 | 33.60¢ | −8.5% | 1,210,113 |
| 2025 | 33.66¢ | +0.2% | 1,231,865 |
How this compares
30.41¢
Massachusetts average, 2025
+10.7%
National Grid Massachusetts vs MA 2025 average
+95.4%
vs US 2025 average
#3
priciest in MA
National Grid Massachusetts files with the EIA as Massachusetts Electric Co (utility ID 11804).
Serves 12 counties in Massachusetts: Barnstable, Berkshire, Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex, Norfolk, Plymouth, Suffolk, Worcester. 383 ZIP codes.
What the numbers show
Since 2015, National Grid Massachusetts's average residential rate has gone from 20.50¢ to 33.66¢ per kWh: +64.2% over 10 years, or about +5.1% a year. It rose in 8 of the 10 years we can compare, and the biggest one-year increase was +28.7% in 2023. The largest drop was −8.5% in 2024.
For a home using 596 kWh a month, the Massachusetts average, National Grid Massachusetts's 2025 rate works out to about $2,407 a year, $232 more than at Massachusetts's average rate of 30.41¢. Of the 20 Massachusetts utilities in our data with a 2025 price, it is the 3rd most expensive.
National Grid Massachusetts served 1,147,218 homes in 2015 and 1,231,865 in 2025 (+7.4%), about 40% of Massachusetts's residential electricity customers.
Who sets National Grid Massachusetts's rates
National Grid 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 National Grid Massachusetts raising rates in 2026?
No rate case for National Grid Massachusetts is on file with the Massachusetts Department of Public Utilities in our tracker. Its average residential rate moved +0.2% from 2024 to 2025. We check the commission docket monthly.
What does National Grid Massachusetts charge per kWh?
National Grid Massachusetts's average effective residential rate was 33.66¢ per kWh in 2025 (EIA-861, revenue divided by sales, all charges included). Massachusetts's 2025 average was 30.41¢.
How much have National Grid Massachusetts rates gone up in five years?
+39.7% between 2020 and 2025, against +33.3% for Massachusetts as a whole over the latest five-year window.
How many customers does National Grid Massachusetts have in Massachusetts?
1,231,865 residential customers in 2025, across 12 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)