State electricity profile · EIA monthly through May 2026
Maine Electricity
As of May 2026, residential electricity in Maine costs 28.63¢ per kWh (+2.6% vs May 2025). EIA publishes these figures monthly and this page follows them. Maine's 2025 annual residential electricity rate is 27.78¢/kWh, 60.6% above the US average. That is an above-average rate on a grid already 58% renewable, so the price here is not waiting on more clean generation to arrive. The commercial, industrial and fuel-by-fuel figures below show where it does come from.
- 28.63¢
- May 2026 rate
- +2.6%
- year over year
- 27.78¢/kWh
- Residential rate
- +60.6%
- vs US average
- 58%
- Renewable
- 755.3K
- Customers
Verify with EIA → · Methodology
27.78¢/kWh residential, 20.96¢/kWh commercial
In the U.S. Energy Information Administration's 2025 annual-frequency retail-sales series, Maine's residential average revenue per kWh is 27.78¢/kWh, with a commercial average of 20.96¢/kWh and an industrial average of 15.50¢/kWh; a separate EIA generation series for 2025 reports 58% of the state's generation from renewables.
- 60.6% above the US average vs national residential average
- 58% renewable generation
The verdict · 2025
Maine's residential electricity runs 27.78¢/kWh - 60.6% above the 17.30¢/kWh national average, pricier than 90% of other states, with 58% of its power from renewables.
This is EIA state average revenue per kWh across 755.3K 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
- Maine's industrial average rose from 12.46¢/kWh to 15.50¢/kWh between the 2024 and 2025 annual-frequency EIA retail-sales periods, a change of +24.4%.
- Maine's commercial average rose from 18.22¢/kWh to 20.96¢/kWh between the 2024 and 2025 annual-frequency EIA retail-sales periods, a change of +15.0%.
- Maine's residential average rose from 24.29¢/kWh to 27.78¢/kWh between the 2024 and 2025 annual-frequency EIA retail-sales periods, a change of +14.4%.
Where Maine's residential rate sits nationally
2025 average revenue per kWh across every reporting state
27.78¢/kWh 10th affordability percentile More affordable than 10% 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 Maine compares
Average revenue per kWh, EIA retail-sales API. Pick a benchmark above to compare Maine against the US average or a peer state.
Residential Price History
Maine residential average revenue per kWh moved from 15.83¢/kWh in 2016 to 27.78¢/kWh in 2025 (75.5% over the window).
- Maine residential avg
- 27.78¢/kWh 75.5% since 2016
- 2016 → 2025
- Maine residential: 2016, 15.8¢
- Maine residential: 2017, 16¢
- Maine residential: 2018, 16.8¢
- Maine residential: 2019, 17.9¢
- Maine residential: 2020, 16.8¢
- Maine residential: 2021, 17¢
- Maine residential: 2022, 22.4¢
- Maine residential: 2023, 27.4¢
- Maine residential: 2024, 24.3¢
- Maine residential: 2025, 27.8¢
Source: U.S. Energy Information Administration, retail-sales API · annual frequency. Maine full trend →
Maine Average Price by Sector and Year (¢/kWh)
The chart above tracks households only. In 2025, Maine households paid 27.78¢/kWh while businesses paid 20.96¢/kWh, a 32.5% 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 | 27.78¢/kWh | 20.96¢/kWh | 15.50¢/kWh |
| 2024 | 24.29¢/kWh | 18.22¢/kWh | 12.46¢/kWh |
| 2023 | 27.42¢/kWh | 17.88¢/kWh | 12.30¢/kWh |
| 2022 | 22.44¢/kWh | 15.40¢/kWh | 11.03¢/kWh |
| 2021 | 17.02¢/kWh | 12.90¢/kWh | 9.55¢/kWh |
| 2020 | 16.81¢/kWh | 12.56¢/kWh | 8.86¢/kWh |
| 2019 | 17.89¢/kWh | 12.83¢/kWh | 9.22¢/kWh |
| 2018 | 16.84¢/kWh | 12.51¢/kWh | 9.32¢/kWh |
| 2017 | 15.97¢/kWh | 12.12¢/kWh | 9.20¢/kWh |
| 2016 | 15.83¢/kWh | 12.08¢/kWh | 8.96¢/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 Maine's Electricity Data Tells Us
Residential customers in Maine pay 27.78¢/kWh in 2025, across 755.3K metered households, placing the state 60.6% above the national residential average of 17.30¢/kWh. Commercial rates sit at 20.96¢/kWh while industrial buyers pay 15.50¢/kWh. These sector averages describe recorded revenue per kWh; this dataset alone does not establish why they differ. Annual residential sales total 4.8M MWh on roughly $1.3B in utility revenue. Sales and revenue are reported retail-series measures and should not be treated as a local load forecast.
Maine prices its sectors in step: 6 of 51 residential against 8 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. No single fuel reaches half of Maine's in-state generation. Natural gas leads at 38.4%, with solar at 20.0% close enough behind that the mix reads as a balance rather than a clear lead. It is the leading fuel in 26 states. Renewable fuels (solar, wind, hydro, geothermal and biomass) account for 58.4% of Maine's electricity output. These shares describe in-state generation, not a utility-specific customer bill.
Looking back across EIA records, residential prices in Maine moved from 15.83¢/kWh in 2016 to 27.78¢/kWh in 2025, a 75.5% shift over that window. States charging a similar rate include New York, Connecticut, Rhode Island, a useful peer set for a sanity check. Because gas sets the price of the marginal megawatt-hour on a grid built around it, Maine'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 Maine that hides which part of the bill a household could actually act on.
+60.6%
Much more expensive vs the US residential average
10%
of states have higher rates — Among the costliest
58%
Significant renewable — above the 25% US mix
755.3K
residential customers served
Energy Generation Mix (2025)
How Maine generates its electricity, from the EIA generation series for 2025 (separate from the 2025 retail-sales price figures above). Renewable sources account for 58.4% of generation.
- Natural Gas38.4%
- Solarrenewable20.0%
- Windrenewable19.8%
- Hydrorenewable18.2%
- Other1.9%
- Petroleum1.2%
- Biomassrenewable0.4%
- Coal0.2%
Who generates Maine's electricity
Maine has 449 operable generating units on EIA's inventory totalling 5,826 MW of net summer capacity. The largest single plant is William F Wyman Hybrid , a petroleum liquids station operated by FPL Energy Wyman LLC , rated 827 MW.
Balancing authorities keep supply and demand matched on the grid; the largest here by capacity are ISO New England Inc and New Brunswick System Operator.
Showing the 16 largest of 270 operable plants in Maine by net summer capacity.
| Plant | Operator | Technology | County | MW |
|---|---|---|---|---|
| William F Wyman Hybrid | FPL Energy Wyman LLC | Petroleum Liquids | – | 827 |
| Westbrook Energy Center Power Plant | Westbrook Energy Center | Natural Gas Fired Combined Cycle | – | 527 |
| Maine Independence Station | Casco Bay Energy Co LLC | Natural Gas Fired Combined Cycle | – | 498 |
| Rumford Power LLC | Rumford Power | Natural Gas Fired Combined Cycle | – | 254 |
| Bingham Wind | Onward Energy | Onshore Wind Turbine | – | 186 |
| Bucksport Generation LLC | Bucksport Generation LLC | Natural Gas Fired Combustion Turbine | – | 178 |
| Cross Town Energy Storage | Cross Town Energy Storage LLC | Batteries | – | 175 |
| Oakfield Wind Project | Onward Energy | Onshore Wind Turbine | – | 148 |
| Great Lakes Hydro America - ME | Great Lakes Hydro America LLC | Conventional Hydroelectric | – | 143 |
| Kibby Wind Facility | Helix Maine Wind Development, LLC | Onshore Wind Turbine | – | 132 |
| Downeast Wind | Downeast Wind, LLC | Onshore Wind Turbine | – | 126 |
| Three Corners Solar | Three Corners Solar, LLC | Solar Photovoltaic | – | 110 |
| Somerset Plant | Sappi Fine Paper North America-Somerset | Wood/Wood Waste Biomass | – | 100 |
| Wyman Hydro | Brookfield White Pine Hydro LLC | Conventional Hydroelectric | – | 89 |
| Harris Hydro | Brookfield White Pine Hydro LLC | Conventional Hydroelectric | – | 87 |
| Rumford Cogeneration | ND Paper, Inc. | Wood/Wood Waste Biomass | – | 85 |
| Operating company | Plants | Net summer MW |
|---|---|---|
| FPL Energy Wyman LLC | 1 | 827 |
| Westbrook Energy Center | 1 | 527 |
| Casco Bay Energy Co LLC | 1 | 498 |
| Onward Energy | 3 | 385 |
| Brookfield White Pine Hydro LLC | 16 | 365 |
| Rumford Power | 1 | 254 |
| Evergreen Wind, LLC | 5 | 219 |
| Bucksport Generation LLC | 1 | 178 |
| Cross Town Energy Storage LLC | 1 | 175 |
| Greenbacker Renewable Energy Corporation | 8 | 151 |
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
$1.3B
Commercial Revenue
$844.3M
Residential Sales
4.8M MWh
Residential Customers
755.3K
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 Maine? ▼
Where does Maine's residential electricity rate rank nationally? ▼
How much of Maine's electricity is renewable? ▼
Are electricity prices going up in Maine? ▼
What are commercial and industrial electricity rates in Maine? ▼
Which energy sources generate the most electricity in Maine? ▼
Where does RateWatt's Maine electricity data come from? ▼
Using Maine's numbers
Renewables already carry a large share of generation here, so the marginal question in Maine has shifted from building supply to firming it. Storage and interconnection are what the next rate moves turn on.
- Maine sits 60.6% 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. Maine price trend
- Compare Maine 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 Maine: why energy prices vary
Where Maine's figures come from
Every price and generation figure on this page is drawn from the EIA series below, and from nothing else.
Utilities serving Maine
The 8 utilities that reported bundled residential service in Maine 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 |
|---|---|---|---|
| Central Maine Power Co | Investor Owned | 519.3K | 23.43¢ |
| Versant Power | Investor Owned | 130.6K | 28.08¢ |
| Eastern Maine Electric Coop | Cooperative | 10.8K | 17.06¢ |
| Houlton Water Company | Municipal | 3.9K | 11.95¢ |
| Town of Madison - (ME) | Municipal | 2.4K | 15.16¢ |
| EverBright, LLC | Behind the Meter | 504 | 18.87¢ |
| Sunnova | Behind the Meter | 80 | 24.38¢ |
| Palmetto Solar, LLC | Behind the Meter | 8 | 41.57¢ |
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.