Rates by state / Massachusetts / NSTAR Electric Company
Investor Owned · 1,274,856 residential customers
NSTAR Electric Company electricity rates
Residential customers paid an average of 21.5¢ per kWh in 2025, 29% below the Massachusetts average of 30.4¢ for the latest 12 months.
Average rate
21.5¢/kWh
2025, all residential revenue ÷ kWh
Average bill
$118/mo
At 548 kWh a month
1-year change
-28.2%
5 years: -4.0%
Average rate by year
202022.4¢
202124.3¢
202229.3¢
202329.7¢
202429.9¢
202521.5¢
NSTAR Electric Company bill at different usage levels
Estimated monthly bill at NSTAR Electric Company's 2025 average rate of 21.5¢ per kWh. Actual bills vary with your plan, fixed charges and taxes.
| Monthly use | NSTAR Electric Company | Massachusetts average |
|---|---|---|
| 500 kWh (about average here) | $107 | $152 |
| 750 kWh | $161 | $228 |
| 1,000 kWh | $215 | $304 |
| 1,500 kWh | $322 | $456 |
| 2,000 kWh | $430 | $609 |
Other utilities in Massachusetts
| Utility | Customers | Rate |
|---|---|---|
| Massachusetts Electric Co | 1,231,865 | 33.7¢ |
| Direct Energy Services | 610,227 | 34.2¢ |
| First Point Power, LLC | 279,362 | 33.5¢ |
| Constellation NewEnergy, Inc | 275,274 | 34.8¢ |
| Dynegy Energy Services, LLC | 147,349 | 33.2¢ |
| NextEra Energy Services, LLC | 137,207 | 32.1¢ |
| Reliant Energy Northeast LLC | 81,964 | 35.9¢ |
| Inspire Energy Holdings, LLC | 47,442 | 38.9¢ |
NSTAR Electric Company: common questions
- How much does NSTAR Electric Company charge per kWh?
- NSTAR Electric Company residential customers paid an average of 21.5¢ per kWh in 2025, counting all charges, according to EIA Form 861 data.
- What is the average NSTAR Electric Company electric bill?
- The average NSTAR Electric Company household used 548 kWh a month in 2025, which works out to about $118 a month at the average rate.
- Is NSTAR Electric Company cheaper than other utilities in Massachusetts?
- NSTAR Electric Company's average rate is 29% below the Massachusetts average of 30.4¢. 16 of 59 utilities in Massachusetts have a lower average rate.
- Did NSTAR Electric Company raise rates?
- NSTAR Electric Company's average residential rate changed -28.2% from 2024 to 2025 and -4.0% since 2020.
- Is my NSTAR Electric Company bill too high?
- Enter the kWh and amount from your bill in the free bill check on AverageElectricBill.com. It compares your use with similar Massachusetts homes and your rate with NSTAR Electric Company's average.
Got a NSTAR Electric Company bill?
Check my billSource: U.S. EIA Form EIA-861, 2025 final data.