Massachusetts · Retail Power Marketer
Green Mountain Energy Company
18.31¢ per kWh, energy only, EIA-861 2025. Average bill $93.97 at 513.3 kWh a month, across 1,324 customers on that row.
Massachusetts averaged 30.41¢/kWh and $181.08 a month. The United States averaged 17.23¢/kWh and $150.68. State and national figures come from EIA's Average Bill file.
Revenue divided by sales, EIA-861 Sales to Ultimate Customers, 2025, released October 7, 2026. Texas wires utilities come from the Delivery Companies file. The price and bill use energy only service. Customer count: 1,324, the largest residential count across service types.
Estimate a bill
The figure below is this utility's 2025 EIA residential average.
2025 EIA average
$183.10
18.31¢/kWh × 1,000 kWh. Energy only residential average, EIA-861 2025. The customer charge is already folded into this average, so it stands beside a tariff total rather than being added to it.
Annual history
| Year | ¢/kWh | Avg. bill | Avg. kWh | Customers |
|---|---|---|---|---|
| 2015 | 11.32¢ | $40.24 | 355.4 | 4,273 |
| 2016 | 13.89¢ | $72.26 | 520.2 | 3,982 |
| 2017 | 14.44¢ | $69.67 | 482.4 | 2,738 |
| 2018 | 16.51¢ | $84.54 | 511.9 | 2,383 |
| 2019 | 16.69¢ | $80.29 | 481.1 | 2,588 |
| 2020 | 16.02¢ | $82.87 | 517.2 | 2,595 |
| 2021 | 16.87¢ | $85.77 | 508.4 | 2,113 |
| 2022 | 18.15¢ | $93.39 | 514.5 | 1,797 |
| 2023 | 21.42¢ | $110.54 | 516.2 | 1,706 |
| 2024 | 19.96¢ | $106.91 | 535.6 | 1,382 |
| 2025 | 18.31¢ | $93.97 | 513.3 | 1,324 |
EIA-861, 2015–2025, using the same service type as the 2025 figure. A blank year means that service was not in the file.
Counties
EIA's 2025 service-territory file does not list counties for this utility.
EIA-861 Service Territory, 2025. A listed county is the county EIA recorded. It does not mean every address in the county is served. Open this utility in the bill calculator · Rate history tool