Town of Wellesley - (MA)
Municipal electric utility · Massachusetts · #1,108 of 3,199 U.S. utilities by customers · EIA utility #20310
Town of Wellesley - (MA) is a municipal electric utility serving 10,568 customers in Massachusetts. In 2025 it sold 248 gigawatt-hours of electricity for $38.28M in revenue, an average realized rate of 15.45¢ per kWh across all customer classes and 16.04¢ per kWh for residential customers. Its reported service territory covers 1 counties. EIA records its activities as: buying transmission, distribution.
Customers, sales and rates by customer class (2025)
| Class | Customers | Sales (GWh) | Revenue | Avg realized rate | Share of sales |
|---|---|---|---|---|---|
| Residential | 9,338 | 114 | $18.20M | 16.04¢ | |
| Commercial | 1,225 | 92.7 | $13.59M | 14.67¢ | |
| Industrial | 5 | 41.6 | $6.49M | 15.59¢ | |
| Total | 10,568 | 248 | $38.28M | 15.45¢ |
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 (1,013 kWh/month).
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 10,144 | 241 | $33.66M | 14.83¢ |
| 2022 | 10,537 | 243 | $35.38M | 15.13¢ |
| 2023 | 10,596 | 238 | $37.64M | 16.18¢ |
| 2024 | 10,661 | 245 | $38.06M | 16.20¢ |
| 2025 | 10,568 | 248 | $38.28M | 16.04¢ |
Reliability (2025)
Average outage time (SAIDI): 41 minutes per customer per year
Average outages (SAIFI): 0.24 per customer
Average restoration time (CAIDI): 169 minutes
As reported for Massachusetts under the Other 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: 248 GWh
Winter peak demand: 39 MW
Meters & rooftop solar (2025)
Smart (AMI) meters: 0.0% of 10,568 meters
Customer-sited generation (net metering): 179 installations, 2.2 MW of capacity
This utility also reported 1 delivery-only customers (0.5 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
Norfolk, 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¢
- Massachusetts Electric Co - 486,042 customers, residential 33.66¢
- 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¢
All Massachusetts utilities and rates
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #20310 in the EIA frame.