Massachusetts Electric Co
Investor Owned electric utility · Massachusetts · #82 of 3,199 U.S. utilities by customers · EIA utility #11804
Massachusetts Electric Co is a investor owned electric utility serving 486,042 customers in Massachusetts. In 2025 it sold 3,579 gigawatt-hours of electricity for $1.12B in revenue, an average realized rate of 31.32¢ per kWh across all customer classes and 33.66¢ per kWh for residential customers. Its reported service territory covers 12 counties. EIA records its activities as: distribution.
Customers, sales and rates by customer class (2025)
| Class | Customers | Sales (GWh) | Revenue | Avg realized rate | Share of sales |
|---|---|---|---|---|---|
| Residential | 438,150 | 2,558 | $861.16M | 33.66¢ | |
| Commercial | 47,026 | 947 | $242.99M | 25.66¢ | |
| Industrial | 866 | 73.9 | $16.92M | 22.89¢ | |
| Total | 486,042 | 3,579 | $1.12B | 31.32¢ |
Average realized rate = revenue divided by sales as reported on EIA Form 861. It blends fixed charges, demand charges and riders into one per-kWh figure; it is not the utility's tariff rate. Estimated residential bill assumes the average residential customer's actual 2025 usage (487 kWh/month).
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 664,094 | 5,403 | $1.17B | 24.92¢ |
| 2022 | 679,142 | 5,568 | $1.39B | 28.53¢ |
| 2023 | 635,003 | 4,605 | $1.50B | 36.72¢ |
| 2024 | 583,453 | 4,235 | $1.30B | 33.60¢ |
| 2025 | 486,042 | 3,579 | $1.12B | 33.66¢ |
Reliability (2025)
Average outage time (SAIDI): 133 minutes per customer per year
Average outages (SAIFI): 1.00 per customer
Average restoration time (CAIDI): 132 minutes
As reported for Massachusetts under the IEEE standard, with major event days included where the standard reports them. Lower is better; see the reliability rankings.
Energy supply (2025)
Net generation: — GWh
Wholesale power purchased: 3,779 GWh
Winter peak demand: 3,475 MW
Energy losses: 3.9% of energy handled
Meters & rooftop solar (2025)
Smart (AMI) meters: 25.9% of 1,466,245 meters
Customer-sited generation (net metering): 117,362 installations, 1,488.1 MW of capacity
This utility also reported 913,879 delivery-only customers (15,786 GWh delivered) in 2025. Delivery figures are excluded from the totals above because the same electricity is also reported by the energy supplier - see Methodology.
Counties served
Barnstable, MABerkshire, MABristol, MAEssex, MAFranklin, MAHampden, MAHampshire, MAMiddlesex, MANorfolk, MAPlymouth, MASuffolk, MAWorcester, MA
Other large utilities in Massachusetts
- Constellation NewEnergy, Inc - 1,541,139 customers, residential 12.92¢
- Direct Energy Services - 1,310,067 customers, residential 14.56¢
- First Point Power, LLC - 353,137 customers, residential 13.82¢
- NSTAR Electric Company - 340,640 customers, residential 21.49¢
- Clearview Electric Inc. - 64,976 customers, residential 14.61¢
- City of Taunton - (MA) - 40,045 customers, residential 18.81¢
- Town of Reading - (MA) - 28,337 customers, residential 19.95¢
- City of Peabody - (MA) - 27,251 customers, residential 16.88¢
All Massachusetts utilities and rates
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #11804 in the EIA frame.