Electricity rates in Cambridge, MA
Cambridge (110,402 people, Middlesex County) is served by NSTAR Electric Company. Homes on NSTAR Electric Company pay about 19.62¢/kWh, 36% less than the Massachusetts average.
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Electric companies serving Cambridge
| Utility | Type | Rate | Avg bill | Homes (statewide) | Outage min |
|---|---|---|---|---|---|
| NSTAR Electric Company | Investor-owned utility | 19.62¢ | $93 | 307K | 113 |
Power outages in Middlesex County right now
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Outage history in Middlesex County
| 2024 | 2025 | |
|---|---|---|
| Outage minutes per customer | 179 | 238 |
| Days with outages | 48 | 64 |
| Most customers out at once | 16,414 (3.8%) | 19,321 (4.4%) |
| Worst day | 2024-01-07 | 2025-12-19 |
Outage minutes by month, 2025
More outage time than 2024 (179 min). Data: ORNL EAGLE-I county outage snapshots every 15 minutes, covering all utilities in the county.
Nearby cities
- West Cambridge/Harvard Square 19.6¢
- Somerville 19.6¢
- Kendall Square 19.6¢
- Lower Allston 19.6¢
- East Somerville 19.6¢
- East Cambridge 19.6¢
- Winter Hill 19.6¢
- Allston 19.6¢
- West Somerville/Davis Square 19.6¢
- Ten Hills 19.6¢
ZIP codes: 02138, 02139, 02140, 02141, 02142, 02238
Frequently asked questions
What is the electricity rate in Cambridge?
Most homes in Cambridge get power from NSTAR Electric Company, where residential customers pay an average of 19.62¢/kWh including all charges. The Massachusetts average is 30.43¢ and the U.S. average 17.99¢.
What is the average electric bill in Cambridge?
About $93 a month, based on 474 kWh a month (the average for NSTAR Electric Company customers) at 19.62¢/kWh. Homes with electric heat, pools or EVs pay more.
Who is the electric company in Cambridge, MA?
NSTAR Electric Company serves Cambridge.
How often does the power go out in Cambridge?
In 2025, customers in Middlesex County averaged 3 hr 58 min without power. Outages hit 64 days of the year, and the worst day was 2025-12-19, when 19,321 customers (4.4%) were out. Source: ORNL EAGLE-I.