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Massachusetts · EIA utility 7554 · Energy supplier

Green Mountain Energy Company electricity rates in Massachusetts, 2025

Green Mountain Energy Company’s 1,324 residential customers paid an average of 18.31¢ per kWh in 2025, 40% below the Massachusetts average of 30.41¢. The typical home used 513 kWh a month, for an average bill of $94.

  • 18.31¢avg ¢/kWh (2025)−1.65¢ (-8.3%) vs 2024
  • $94Avg monthly billMassachusetts: $181
  • 513 kWhAvg monthly useMassachusetts: 596 kWh
  • 1,324Residential customersEnergy supplier

Estimate your monthly electric bill

Rate defaults to Green Mountain Energy Company’s 2025 average. Results update as you type and stay in your browser.

Your bill shows kWh used. Default: the average here, 513 kWh.

Default: Green Mountain Energy Company average, 2025. Use the all-in rate from your bill (total ÷ kWh) for the closest estimate.

Estimated bill at your rate$94/month
The same usage at each average rate
Rate¢/kWhMonthly billYearly
Green Mountain Energy Company average, 202518.31¢$94$1,127
Massachusetts average, 202530.41¢$156$1,872
Massachusetts, August 2026 (preliminary)30.48¢$156$1,876
U.S. average, 202517.23¢$88$1,061
Green Mountain Energy Company sales to Massachusetts customers, 2025
SectorCustomersSales (MWh)Revenue¢/kWh 2025¢/kWh 2024Change
Residential1,3248,155$1,493,00018.31¢19.96¢−1.65¢ (-8.3%)
Commercial00$0n/an/an/a
Industrial00$0n/an/an/a
All sectors1,3248,155$1,493,00018.31¢19.96¢−1.65¢ (-8.3%)

How Green Mountain Energy Company compares

  • Massachusetts residential average, 2025: 30.41¢ per kWh, 596 kWh a month, $181 average bill. U.S. average: 17.23¢, 874 kWh, $151.
  • Among 33 energy suppliers in Massachusetts with at least 1,000 residential customers, Green Mountain Energy Company ranks 15 of 33 from lowest to highest average price.
  • Latest monthly figure: Massachusetts homes paid 30.48¢ per kWh in August 2026 (preliminary), against 30.55¢ in August 2025. Summer months often run higher than the annual average.
  • From 2024 to 2025 this average fell 8.3%; the state average rose 3.6%.
  • Green Mountain Energy Company is a retail energy provider that sells electricity supply in a state with retail choice. Balancing authority: ISNE.

Massachusetts energy suppliers with similar rates

Closest average residential prices in Massachusetts, 2025
Provider¢/kWhAvg billCustomers
SFE Energy Massachusetts, Inc.16.69¢$785,216
Energy Services Providers, Inc18.99¢$1004,441
Energy Plus Holdings LLC19.00¢$971,091
Ambit Energy Holdings, LLC19.04¢$1075,223
Alpha Gas and Electric, LLC19.11¢$951,343
Titan Gas LLC19.35¢$1159,549
Inspire Energy Holdings, LLC19.37¢$11347,442
CleanChoice Energy, Inc.19.43¢$9837,838

Sources

Average price = residential revenue ÷ residential kWh sold, as reported to EIA. It includes fixed monthly charges, taxes passed through in revenue and seasonal tiers, averaged over the year. Your own rate depends on your tariff and usage.

All Massachusetts electricity providers · How we compute rates