State electricity profile · EIA monthly through May 2026
Massachusetts Electricity
As of May 2026, residential electricity in Massachusetts costs 28.82¢ per kWh (-3.6% vs May 2025). EIA publishes these figures monthly and this page follows them. Massachusetts's 2025 annual residential electricity rate is 30.48¢/kWh, 76.2% above the US average. The rate sits above the national average while renewables supply 31% of in-state generation, leaving most of the mix, broken out below, still fossil-fired.
- 28.82¢
- May 2026 rate
- -3.6%
- year over year
- 30.48¢/kWh
- Residential rate
- +76.2%
- vs US average
- 31%
- Renewable
- 3.0M
- Customers
Verify with EIA → · Methodology
30.48¢/kWh residential, 23.08¢/kWh commercial
In the U.S. Energy Information Administration's 2025 annual-frequency retail-sales series, Massachusetts's residential average revenue per kWh is 30.48¢/kWh, with a commercial average of 23.08¢/kWh and an industrial average of 19.35¢/kWh; a separate EIA generation series for 2025 reports 31% of the state's generation from renewables.
- 76.2% above the US average vs national residential average
- 31% renewable generation
The verdict · 2025
Massachusetts's residential electricity runs 30.48¢/kWh - 76.2% above the 17.30¢/kWh national average, pricier than 96% of other states, with 31% of its power from renewables.
This is EIA state average revenue per kWh across 3.0M reported residential customers, a benchmark for comparing states, not the tariff on any single bill. Source: EIA retail-sales API, annual frequency.
Annual rate change
What changed in the 2025 annual EIA period
- Massachusetts's commercial average rose from 20.90¢/kWh to 23.08¢/kWh between the 2024 and 2025 annual-frequency EIA retail-sales periods, a change of +10.4%.
- Massachusetts's industrial average rose from 18.19¢/kWh to 19.35¢/kWh between the 2024 and 2025 annual-frequency EIA retail-sales periods, a change of +6.4%.
- Massachusetts's residential average rose from 29.35¢/kWh to 30.48¢/kWh between the 2024 and 2025 annual-frequency EIA retail-sales periods, a change of +3.9%.
Where Massachusetts's residential rate sits nationally
2025 average revenue per kWh across every reporting state
30.48¢/kWh 4th affordability percentile More affordable than 4% of 50 other states
all reporting states, equal-width bands
Each bar spans 5¢/kWh. Taller bars contain more states; the dashed marker locates this state. Hover, focus or tap a bar for its exact count and share.
Source U.S. Energy Information Administration, retail-sales API · 2025 annual frequency
How Massachusetts compares
Average revenue per kWh, EIA retail-sales API. Pick a benchmark above to compare Massachusetts against the US average or a peer state.
Residential Price History
Massachusetts residential average revenue per kWh moved from 19.00¢/kWh in 2016 to 30.48¢/kWh in 2025 (60.4% over the window).
- Massachusetts residential avg
- 30.48¢/kWh 60.4% since 2016
- 2016 → 2025
- Massachusetts residential: 2016, 19¢
- Massachusetts residential: 2017, 20.1¢
- Massachusetts residential: 2018, 21.6¢
- Massachusetts residential: 2019, 21.9¢
- Massachusetts residential: 2020, 22¢
- Massachusetts residential: 2021, 22.9¢
- Massachusetts residential: 2022, 26¢
- Massachusetts residential: 2023, 29.6¢
- Massachusetts residential: 2024, 29.4¢
- Massachusetts residential: 2025, 30.5¢
Source: U.S. Energy Information Administration, retail-sales API · annual frequency. Massachusetts full trend →
Massachusetts Average Price by Sector and Year (¢/kWh)
The chart above tracks households only. In 2025, Massachusetts households paid 30.48¢/kWh while businesses paid 23.08¢/kWh, a 32.1% residential premium, a wider household-versus-business gap than most states. Every year EIA has published is below, so a single year can be read across all three sectors rather than assembled from three separate EIA queries.
| Year | Residential | Commercial | Industrial |
|---|---|---|---|
| 2025 | 30.48¢/kWh | 23.08¢/kWh | 19.35¢/kWh |
| 2024 | 29.35¢/kWh | 20.90¢/kWh | 18.19¢/kWh |
| 2023 | 29.61¢/kWh | 19.62¢/kWh | 17.88¢/kWh |
| 2022 | 25.97¢/kWh | 18.67¢/kWh | 17.06¢/kWh |
| 2021 | 22.89¢/kWh | 16.99¢/kWh | 15.18¢/kWh |
| 2020 | 21.97¢/kWh | 16.03¢/kWh | 14.51¢/kWh |
| 2019 | 21.92¢/kWh | 16.80¢/kWh | 14.76¢/kWh |
| 2018 | 21.61¢/kWh | 17.17¢/kWh | 14.89¢/kWh |
| 2017 | 20.06¢/kWh | 15.93¢/kWh | 13.88¢/kWh |
| 2016 | 19.00¢/kWh | 15.60¢/kWh | 13.38¢/kWh |
Average revenue per kilowatt-hour, U.S. Energy Information Administration annual-frequency retail-sales series. Revenue per kWh is what customers in each sector actually paid on average, not an advertised tariff rate. Years with no EIA figure for a sector show —.
What Massachusetts's Electricity Data Tells Us
Residential customers in Massachusetts pay 30.48¢/kWh in 2025, across 3.0M metered households, placing the state 76.2% above the national residential average of 17.30¢/kWh. Commercial rates sit at 23.08¢/kWh while industrial buyers pay 19.35¢/kWh. These sector averages describe recorded revenue per kWh; this dataset alone does not establish why they differ. Annual residential sales total 20.9M MWh on roughly $6.4B in utility revenue. Sales and revenue are reported retail-series measures and should not be treated as a local load forecast.
Massachusetts prices its sectors in step: 3 of 51 residential against 5 industrial. A state this consistent is the exception rather than the rule, and it means the residential figure above is a fair proxy for how the whole grid is priced. Natural gas carries the majority of Massachusetts's in-state generation at 64.7%, though not the whole grid: solar supplies 24.4% and other a further 3.0%. It is the leading fuel in 26 states. Renewable fuels (solar, wind, hydro, geothermal and biomass) account for 30.8% of Massachusetts's electricity output. These shares describe in-state generation, not a utility-specific customer bill.
Looking back across EIA records, residential prices in Massachusetts moved from 19.00¢/kWh in 2016 to 30.48¢/kWh in 2025, a 60.4% shift over that window. States charging a similar rate include Rhode Island, Connecticut, California, a useful peer set for a sanity check. Because gas sets the price of the marginal megawatt-hour on a grid built around it, Massachusetts's residential rate tracks the fuel market with a lag: a gas-price winter shows up on bills months later, and a cheap gas year works its way through the same way. At this level it matters what the figure is made of: it is total revenue divided by total kilowatt-hours, so delivery, taxes and fees are inside it but never broken out. In a state as dear as Massachusetts that hides which part of the bill a household could actually act on.
+76.2%
Much more expensive vs the US residential average
4%
of states have higher rates — Among the costliest
31%
Moderate renewable — above the 25% US mix
3.0M
residential customers served
Energy Generation Mix (2025)
How Massachusetts generates its electricity, from the EIA generation series for 2025 (separate from the 2025 retail-sales price figures above). Renewable sources account for 30.8% of generation.
- Natural Gas64.7%
- Solarrenewable24.4%
- Other3.0%
- Hydrorenewable3.0%
- Biomassrenewable2.6%
- Petroleum1.5%
- Windrenewable0.8%
Who generates Massachusetts's electricity
Massachusetts has 965 operable generating units on EIA's inventory totalling 12,645 MW of net summer capacity. The largest single plant is Canal , a petroleum liquids station operated by Canal Generating LLC , rated 1,449 MW.
Balancing authorities keep supply and demand matched on the grid; the largest here by capacity are ISO New England Inc and Southern Company Services, Inc. - Trans.
Showing the 16 largest of 679 operable plants in Massachusetts by net summer capacity.
| Plant | Operator | Technology | County | MW |
|---|---|---|---|---|
| Canal | Canal Generating LLC | Petroleum Liquids | – | 1,449 |
| Northfield Mountain | FirstLight Power Resources, Inc. - MA | Hydroelectric Pumped Storage | – | 1,168 |
| Vineyard Wind 1 | Vineyard Wind 1 LLC | Offshore Wind Turbine | – | 800 |
| Fore River Generating Station | Calpine Fore River Energy Center, LLC | Natural Gas Fired Combined Cycle | – | 724 |
| Salem Harbor Power Development LP | Salem Harbor Power Development LP | Natural Gas Fired Combined Cycle | – | 675 |
| Bear Swamp | Bear Swamp Power Company LLC | Hydroelectric Pumped Storage | – | 666 |
| ANP Bellingham Energy Project | Bellingham Power Generation LLC | Natural Gas Fired Combined Cycle | – | 520 |
| ANP Blackstone Energy Project | ANP Blackstone Energy Company LLC | Natural Gas Fired Combined Cycle | – | 482 |
| Stony Brook | Massachusetts Mun Wholes Electric Co | Petroleum Liquids | – | 443 |
| Millennium Power | Millennium Power Company, LLC | Natural Gas Fired Combined Cycle | – | 330 |
| Bellingham Cogeneration Facility | Northeast Energy Associates LP | Natural Gas Fired Combined Cycle | – | 264 |
| Medway Grid | – | Batteries | – | 250 |
| Masspower | Masspower | Natural Gas Fired Combined Cycle | – | 245 |
| Berkshire Power | Berkshire Power Co LLC | Natural Gas Fired Combined Cycle | – | 229 |
| Kendall Square Station | Kendall Green Energy, LLC | Natural Gas Fired Combined Cycle | – | 224 |
| Milford Power LP | Milford Power LLC | Natural Gas Fired Combined Cycle | – | 205 |
| Operating company | Plants | Net summer MW |
|---|---|---|
| Canal Generating LLC | 1 | 1,449 |
| FirstLight Power Resources, Inc. - MA | 4 | 1,238 |
| Vineyard Wind 1 LLC | 1 | 800 |
| Calpine Fore River Energy Center, LLC | 1 | 724 |
| Bear Swamp Power Company LLC | 2 | 677 |
| Salem Harbor Power Development LP | 1 | 675 |
| Massachusetts Mun Wholes Electric Co | 6 | 534 |
| Bellingham Power Generation LLC | 1 | 520 |
| ANP Blackstone Energy Company LLC | 1 | 482 |
| Constellation Power, Inc | 3 | 342 |
Operable units only, from EIA's generator inventory as reported for 2026-05. Capacity is net summer rating, which is what a unit can reliably deliver in peak conditions rather than its nameplate figure. Ownership and operatorship can differ; the company shown is the one EIA records as operating the unit.
Market Overview
Residential Revenue
$6.4B
Commercial Revenue
$5.7B
Residential Sales
20.9M MWh
Residential Customers
3.0M
States with Similar Electricity Prices
Other states led by natural gas
These grids also report natural gas as their largest generation share in the latest EIA mix — a different peer set from the price neighbors above.
Frequently Asked Questions
How much does electricity cost in Massachusetts? ▼
Where does Massachusetts's residential electricity rate rank nationally? ▼
How much of Massachusetts's electricity is renewable? ▼
Are electricity prices going up in Massachusetts? ▼
What are commercial and industrial electricity rates in Massachusetts? ▼
Which energy sources generate the most electricity in Massachusetts? ▼
Where does RateWatt's Massachusetts electricity data come from? ▼
Using Massachusetts's numbers
Massachusetts is mid-transition, which is the phase where prices are hardest to predict: it is paying to run the old fleet and to build the new one at the same time, and the rate above sits in the middle of that.
- Massachusetts sits 76.2% above the national average, see exactly where it lands among all 50 states. See the rankings
- Check the multi-year trend before you judge the rate, a low price rising fast can cost more over a decade than a steady one. Massachusetts price trend
- Compare Massachusetts side by side with the US average and peer states using the tool above, then estimate your own bill from your monthly kWh. Cost calculator
Figures are EIA state averages by sector, computed as revenue divided by sales, so delivery and taxes are inside them but not broken out. Your actual rate depends on your utility, plan, and usage, see our disclaimer.
Read with Massachusetts: why energy prices vary
Where Massachusetts's figures come from
Every price and generation figure on this page is drawn from the EIA series below, and from nothing else.
- 📊 EIA State Energy Profile, Massachusetts State energy database
- ⚡ EIA Electric Power Monthly The monthly and annual price series behind every rate here
- 🌿 EIA generation by source The in-state generation shares quoted above
- 📖 Our methodology Source-to-figure lineage, and further federal energy references
Utilities serving Massachusetts
The 27 utilities that reported bundled residential service in Massachusetts to EIA Form 861 (2024), largest first. Entity prices below are Form 861 averages for that release, not the same survey as the 2025 retail-sales statewide average above, and not a household tariff. What an individual household pays depends on which of these serves its address.
| Utility | Ownership | Customers | Avg ¢/kWh |
|---|---|---|---|
| Massachusetts Electric Co | Investor Owned | 526.4K | 33.60¢ |
| NSTAR Electric Company | Investor Owned | 383.4K | 29.91¢ |
| Sunrun Inc. | Behind the Meter | 57.2K | 24.62¢ |
| City of Taunton | Municipal | 35.7K | 21.46¢ |
| Town of Reading - (MA) | Municipal | 27.4K | 15.86¢ |
| City of Chicopee - (MA) | Municipal | 23.2K | 16.16¢ |
| City of Peabody - (MA) | Municipal | 22.5K | 15.71¢ |
| Tesla Inc. | Behind the Meter | 19.2K | 16.10¢ |
| Sunnova | Behind the Meter | 16.9K | 23.80¢ |
| City of Westfield - (MA) | Municipal | 16.2K | 17.59¢ |
| Town of Shrewsbury - (MA) | Municipal | 15.7K | 14.27¢ |
| City of Holyoke - (MA) | Municipal | 15.0K | 16.58¢ |
| Town of Middleborough - (MA) | Municipal | 14.9K | 15.84¢ |
| Town of Braintree - (MA) | Municipal | 14.0K | 15.79¢ |
| City of Norwood - (MA) | Municipal | 13.6K | 17.67¢ |
Showing the 15 largest of 27 reporting utilities. The 2 serving 100.0K+ residential customers link to a full profile. Presence in EIA Form 861 is not evidence that a utility is available at a given address or that a customer may choose it.
Related
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the U.S. Energy Information Administration (EIA). Consult a qualified professional before making decisions based on this data.
Every figure on RateWatt is rendered directly from official U.S. Energy Information Administration (EIA) data, no number is typed in by an editor. Statewide prices use the EIA retail-sales annual series (2025). Generation mix uses a separate EIA generation series (2025). Utility rows use Form EIA-861 (2024) and are not averaged into the statewide retail-sales figure. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2025.