State
Maine
Who serves its customers, 2025
| Kind of utility | Customers | Share of customers |
|---|---|---|
| Investor owned | 748,004 | 86.7% |
| Cooperative | 13,231 | 1.5% |
| Public (municipal, state, federal, and districts) | 15,783 | 1.8% |
| Retail power marketer | 76,650 | 8.9% |
| Other | 9,421 | 1.1% |
Customers of full-service and energy-only providers, as EIA counts them; delivery-only customers are the same people, so they are not counted twice.
U.S. Energy Information Administration · Annual Electric Power Industry Report (Form EIA-861) · data for 2025 · as of Oct 7, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0 May be out of date. The next release was due by Oct 7, 2027. Last checked for an update: Oct 31, 2026.
Average price by sector, 2025
| Sector | Average price (cents per kWh) |
|---|---|
| Residential | 27.69 |
| Commercial | 20.86 |
| Industrial | 14.88 |
Revenue from every kind of service over sales counted once, as EIA computes its state averages.
Capacity and generation by fuel
| Fuel | Capacity | Net generation in 2025 |
|---|---|---|
| Natural gas | 1,579.2 MW | 5,804,685 MWh |
| Wind | 1,217.3 MW | 2,916,095 MWh |
| Solar | 959.9 MW | 1,489,075 MWh |
| Residual fuel oil | 846 MW | 164,665 MWh |
| Hydro | 705.2 MW | 2,548,654 MWh |
| BLQ | 272 MW | 603,063 MWh |
| Wood | 239.8 MW | 948,274 MWh |
| Batteries | 239 MW | -10,385 MWh |
| MSW | 43.6 MW | |
| Distillate fuel oil | 37 MW | 2,165 MWh |
| PUR | 22 MW | 98,689 MWh |
| Landfill gas | 3.2 MW | 21,881 MWh |
| JF | 0 MWh | |
| Bituminous coal | 31,777 MWh | |
| SLW | 7,372 MWh | |
| TDF | 118,781 MWh | |
| PG | 18 MWh | |
| MSB | 44,000 MWh | |
| MSN | 53,779 MWh | |
| OBS | 0 MWh | |
| OBL | 466 MWh |
Balancing authorities serving it: ISNE, NA, NBSO.
U.S. Energy Information Administration · Annual Electric Generator Report (Form EIA-860) · data for 2025 · as of Sep 10, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0 May be out of date. The next release was due by Sep 10, 2027. Last checked for an update: Oct 31, 2026.
U.S. Energy Information Administration · Power Plant Operations Report (Form EIA-923) · data for 2025 · as of Sep 11, 2026 · retrieved Nov 1, 2026 · CC-BY-4.0 May be out of date. The next release was due by Sep 11, 2027. Last checked for an update: Nov 1, 2026.
Interconnection queue, as of the end of 2025
| Type | Active capacity (MW) | Projects |
|---|---|---|
| Solar | 852 | 14 |
| Wind | 18 | 1 |
| Hybrid | 160 | 1 |
Requests still active in an interconnection queue at the end of 2025. Most never get built. Credit: Lawrence Berkeley National Laboratory and GridTracker.
Lawrence Berkeley National Laboratory and GridTracker · Queued Up: Interconnection Queue Data File (Lawrence Berkeley National Laboratory) · data for 2025 · as of May 7, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0 May be out of date. The next release was due by May 7, 2027. Last checked for an update: Oct 31, 2026.
Utilities
| Utility | Ownership, as EIA reports it | Customers | Sales (MWh) |
|---|---|---|---|
| Central Maine Power Co | Investor Owned | 664,975 | 8,707,025 |
| Versant Power | Investor Owned | 165,411 | 1,905,474 |
| Electricity Maine, LLC | Retail Power Marketer | 15,645 | 75,274 |
| Constellation NewEnergy, Inc | Retail Power Marketer | 13,907 | 1,637,119 |
| SmartEnergy Holdings, LLC | Retail Power Marketer | 13,439 | 84,346 |
| Eastern Maine Electric Coop | Cooperative | 13,231 | 105,145 |
| Kennebunk Light & Power Dist | Municipal | 7,597 | 122,359 |
| Adjustment 2025 | 6,778 | -125,834 | |
| C. N. Brown Electricity, LLC | Retail Power Marketer | 5,516 | 72,395 |
| Houlton Water Company | Municipal | 5,498 | 119,048 |
| Think Energy, LLC | Retail Power Marketer | 4,989 | 36,891 |
| First Point Power, LLC | Retail Power Marketer | 4,933 | 416,180 |
| XOOM Energy Maine, LLC | Retail Power Marketer | 4,016 | 40,761 |
| FairPoint Energy LLC | Retail Power Marketer | 3,346 | 21,734 |
| Town of Madison - (ME) | Municipal | 2,693 | 53,799 |
| Ambit Energy Holdings, LLC | Retail Power Marketer | 2,591 | 18,708 |
| Major Energy Electric Services | Retail Power Marketer | 2,241 | 16,331 |
| EverBright, LLC | Behind the Meter | 1,670 | 12,331 |
| North American Power and Gas, LLC | Retail Power Marketer | 1,651 | 10,451 |
| Town Square Energy | Retail Power Marketer | 1,578 | 14,581 |
| Ahana Renewables, LLC | Behind the Meter | 883 | 13,004 |
| NextEra Energy Services, LLC | Retail Power Marketer | 857 | 333,531 |
| ENGIE Resources LLC | Retail Power Marketer | 515 | 321,493 |
| Clearview Electric Inc. | Retail Power Marketer | 509 | 1,863 |
| Direct Energy Business | Retail Power Marketer | 256 | 591,738 |
| Titan Gas LLC | Retail Power Marketer | 222 | 1,087 |
| Champion Energy Services | Retail Power Marketer | 189 | 48,805 |
| MP2 Energy LLC | Retail Power Marketer | 100 | 139,223 |
| BP Energy Retail LLC | Retail Power Marketer | 63 | 287,129 |
| Palmetto Solar, LLC | Behind the Meter | 63 | 746 |
| Texas Retail Energy, LLC | Retail Power Marketer | 31 | 82,520 |
| Sunrun Inc. | Behind the Meter | 23 | 507 |
| Great American Gas & Electric, LLC | Retail Power Marketer | 17 | 2,386 |
| Calpine Energy Solutions, LLC | Retail Power Marketer | 12 | 342,215 |
| New Brunswick Energy Marketing Corp. | Retail Power Marketer | 12 | 197,095 |
| SmartestEnergy US LLC | Retail Power Marketer | 7 | 7,737 |
| Freedom Energy | Retail Power Marketer | 4 | 16,995 |
| Tesla Inc. | Behind the Meter | 4 | 1,208 |
| American PowerNet | Retail Power Marketer | 2 | 73,399 |
| Calpine Power America LLC | Retail Power Marketer | 1 | 4,540 |
| Messer Energy Services, Inc. | Retail Power Marketer | 1 | 96,305 |
| Sunnova | Behind the Meter | 0 | 0 |
A utility with too few reported figures for its own page is listed here with what it reported.
Power plants (274)
| Plant | County | Nameplate capacity | Operator |
|---|---|---|---|
| William F Wyman Hybrid | Cumberland | 862.7 MW | FPL Energy Wyman LLC |
| Westbrook Energy Center Power Plant | Cumberland | 563.9 MW | Westbrook Energy Center |
| Maine Independence Station | Penobscot | 550.2 MW | Casco Bay Energy Co LLC |
| Rumford Power LLC | Oxford | 274.5 MW | Rumford Power |
| Bucksport Generation LLC | Hancock | 186.8 MW | Bucksport Generation LLC |
| Bingham Wind | Piscataquis | 186 MW | Onward Energy |
| Cross Town Energy Storage | Cumberland | 175 MW | Cross Town Energy Storage LLC |
| Great Lakes Hydro America - ME | Penobscot | 158 MW | Great Lakes Hydro America LLC |
| Oakfield Wind Project | Aroostook | 148 MW | Onward Energy |
| Kibby Wind Facility | Franklin | 132 MW | Helix Maine Wind Development, LLC |
| Downeast Wind | Washington | 126 MW | Downeast Wind, LLC |
| Three Corners Solar | Waldo | 110 MW | Three Corners Solar, LLC |
| Somerset Plant | Somerset | 107.1 MW | Sappi Fine Paper North America-Somerset |
| Rumford Cogeneration | Oxford | 102.6 MW | ND Paper, Inc. |
| Farmington Solar | Franklin | 77 MW | Farmington Solar, LLC |
| Harris Hydro | Somerset | 76.4 MW | Brookfield White Pine Hydro LLC |
| Weaver Wind | Hancock | 72.6 MW | Greenbacker Renewable Energy Corporation |
| Wyman Hydro | Somerset | 72 MW | Brookfield White Pine Hydro LLC |
| S D Warren Westbrook | Cumberland | 69.7 MW | Relevate Power Management LLC |
| Woodland Pulp, LLC | Washington | 68.3 MW | Woodland Pulp LLC |
| Rollins Wind Project | Penobscot | 60 MW | Evergreen Wind, LLC |
| Moscow | Somerset | 58.8 MW | Greenbacker Renewable Energy Corporation |
| Stetson Wind I | Washington | 57 MW | Evergreen Wind, LLC |
| Rumford Falls Hydro Facility | Oxford | 52.5 MW | Brookfield Power New England |
| Hancock Wind Plant | Hancock | 51 MW | Onward Energy |
| Record Hill Wind | Oxford | 50.6 MW | Record Hill Wind LLC |
| Sanford Solar | York | 49.4 MW | Sanford Airport Solar, LLC |
| ReEnergy Stratton LLC | Franklin | 47 MW | ReEnergy Stratton LLC |
| Passadumkeag Windpark LLC | Penobscot | 42.9 MW | Southern Power Co |
| Mars Hill Wind Farm Project | Aroostook | 42 MW | Evergreen Wind, LLC |
| ReEnergy Livermore Falls | Androscoggin | 39.6 MW | ReEnergy Livermore Falls |
| Cape Gas Turbine | Cumberland | 35 MW | FPL Energy Cape LLC |
| Bull Hill Wind Project | Hancock | 34.5 MW | Evergreen Wind, LLC |
| Saddleback Ridge Wind Farm | Franklin | 34.2 MW | CPV Saddleback Ridge Wind, LLC |
| Anson Abenaki Hydros | Somerset | 29 MW | Eagle Creek Renewable Energy, LLC |
| Red Shield Envir Old Town Facility | Penobscot | 28.5 MW | ND Paper, Inc. |
| Charles E Monty | Androscoggin | 28.4 MW | Brookfield White Pine Hydro LLC |
| NE Renewable Power Jonesboro | Washington | 27.5 MW | Stored Solar J&WE |
| NE Renewable Power West Enfield | Penobscot | 27.5 MW | Stored Solar J&WE |
| Stetson Wind II | Washington | 25.5 MW | Evergreen Wind, LLC |
| Eagle Point Energy Center | Penobscot | 25.3 MW | Eagle Point Energy Center, LLC |
| Canton Mountain Wind | Oxford | 22.8 MW | CPV Canton Mountain Wind LLC |
| Twin Rivers Paper Co LLC | Aroostook | 22 MW | Twin Rivers Paper Co LLC |
| Milo PV - BD Solar 1 LLC | Piscataquis | 20 MW | BD Solar 1 LLC |
| Mousam River Solar | York | 20 MW | Walden Renewables Development LLC |
| Silver Maple | Penobscot | 20 MW | WEB Silver Maple Wind LLC |
| Spruce Mountain WInd | Oxford | 20 MW | CPV Spruce Mountain Wind LLC |
| Walden Solar Maine V | Androscoggin | 20 MW | Walden Solar Maine V LLC |
| Brunswick Hydro | Cumberland | 19.6 MW | Brookfield White Pine Hydro LLC |
| Worumbo Hydro Station | Androscoggin | 19.4 MW | Eagle Creek Renewable Energy, LLC |
| Gulf Island | Androscoggin | 19.2 MW | Brookfield White Pine Hydro LLC |
| Skelton | York | 16.8 MW | Brookfield White Pine Hydro LLC |
| Hydro Kennebec Project | Kennebec | 15.4 MW | Hydro Kennebec LLC |
| RoxWind | Oxford | 15.3 MW | RoxWind LLC |
| Bonny Eagle | York | 15.2 MW | Brookfield White Pine Hydro LLC |
| Pejepscot Hydroelectric Project | Sagadahoc | 13.5 MW | Topsham Hydro Partners |
| Regional Waste Systems | Cumberland | 13.3 MW | Ecomaine |
| West Enfield Hydro | Penobscot | 13 MW | Brookfield Black Bear Hydro, LLC |
| Williams Hydro | Somerset | 13 MW | Brookfield White Pine Hydro LLC |
| Weston Hydro | Somerset | 12 MW | Brookfield White Pine Hydro LLC |
| Hiram | Cumberland | 10.5 MW | Brookfield White Pine Hydro LLC |
| Otis Hydro | Franklin | 10.2 MW | Eagle Creek Renewable Energy, LLC |
| Georges River Energy | Waldo | 10 MW | Robbins Lumber Inc |
| Pittsfield Solar LLC | Somerset | 9.9 MW | Pittsfiled Solar LLC |
| International Paper Livermore Hydro | Androscoggin | 9.2 MW | Eagle Creek Renewable Energy, LLC |
| Oxford PV - BD Solar Oxford LLC | Oxford | 9.2 MW | BD Solar Oxford LLC |
| Pisgah Mountain Wind | Penobscot | 9.1 MW | Pisgah Mountain, LLC |
| Ellsworth Hydro Station | Hancock | 8.9 MW | Brookfield Black Bear Hydro, LLC |
| Shawmut | Somerset | 8.8 MW | Brookfield White Pine Hydro LLC |
| Athens Energy | Somerset | 8.5 MW | Athens Energy, LLC |
| Milford Hydro Station | Penobscot | 7.8 MW | Brookfield Black Bear Hydro, LLC |
| West Buxton | York | 7.7 MW | Brookfield White Pine Hydro LLC |
| Augusta PV - BD Solar Augusta LLC | Kennebec | 7.2 MW | BD Solar Augusta LLC |
| Lockwood Hydroelectric Facility | Kennebec | 7.2 MW | Merimil Ltd Partnership |
| BD Solar Ellsworth LLC | Hancock | 7 MW | BD Solar Hancock North LLC |
| BD Solar Hancock LLC | Hancock | 7 MW | BD Solar Hancock LLC |
| Winslow PV - BD Solar 2 LLC | Kennebec | 7 MW | BD Solar 2 LLC |
| Aziscohos Hydroelectric Project | Oxford | 6.7 MW | Brookfield White Pine Hydro LLC |
| Cataract Hydro | York | 6.6 MW | Brookfield White Pine Hydro LLC |
| International Paper Riley Hydro | Franklin | 6.6 MW | Eagle Creek Renewable Energy, LLC |
| Deer Rips | Androscoggin | 6.5 MW | Brookfield White Pine Hydro LLC |
| AES Daigle Solar, LLC | Aroostook | 5 MW | AES Clean Energy |
| Athens AT01 | Somerset | 5 MW | Nautilus Solar Solutions |
| Baldwin (ME) | Cumberland | 5 MW | Maine DG Solar Baldwin, LLC |
| Bates College Skowhegan | Somerset | 5 MW | Westbound Solar 3, LLC |
| BNRG Masardis (CSG) | Aroostook | 5 MW | Nautilus Solar Solutions |
| Brewer (CSG) | Penobscot | 5 MW | Nautilus Solar Solutions |
| Brewer PV, LLC | Penobscot | 5 MW | SREOG Partnership 4, LLC |
| BWC Beech Ridge Brook, LLC | Cumberland | 5 MW | Navisun LLC |
| BWC Jimmie Pond | Penobscot | 5 MW | Navisun LLC |
| Caribou Solar | Aroostook | 5 MW | SoCore Energy LLC |
| Cenergy - Pulk | Androscoggin | 5 MW | BAP Grounded 2 LLC |
| Cenergy - Waterville (CSG) | Kennebec | 5 MW | Luminace Sunbeam Development Holdings, LLC |
| Cenergy - Wiscasset (CSG) | Lincoln | 5 MW | Luminace Sunbeam Development Holdings, LLC |
| Dynamic Corinth (CSG) | Penobscot | 5 MW | MN8 Energy LLC |
| Dynamic Madison (CSG) | Somerset | 5 MW | MN8 Energy LLC |
| Fairfield PV - BD Solar Fairfield LLC | Somerset | 5 MW | BD Solar Fairfield LLC |
| Fort Fairfield | Aroostook | 5 MW | Standard Solar |
| Gorham Solar 1 (CSG) | Cumberland | 5 MW | CleanCapital Holdings |
| Hermon Solar, LLC | Penobscot | 5 MW | SREOG Partnership 2, LLC |
| MD - EDFR - Phase II - Lewiston | Androscoggin | 5 MW | Hayworth Solar Partners, LLC |
| ME - EDF - Phase II - Belfast | Waldo | 5 MW | Shining Solar Partners, LLC |
| ME - EDFR - Phase I - Bristol | Lincoln | 5 MW | Overlook Solar Partners, LLC |
| ME Novel Lighthouse - Carrabassett | Franklin | 5 MW | Luminace Sunbeam Development Holdings, LLC |
| ME-EDFR-Phase I-Embden | Somerset | 5 MW | Tower Solar Partners, LLC |
| ME-EDFR-Phase I-Woolwich | Sagadahoc | 5 MW | Green Mile Solar, LLC |
| MEVS Clark LLC | Somerset | 5 MW | MEVS Clark LLC |
| MMWAC Resource Recovery Facility | Androscoggin | 5 MW | Maine Waste to Energy |
| Monmouth | Kennebec | 5 MW | Maine DG Solar Monmouth, LLC |
| North Bridgton | Cumberland | 5 MW | Nautilus Solar Solutions |
| Oakland | Kennebec | 5 MW | Nautilus Solar Solutions |
| Our Katahdin | Penobscot | 5 MW | Greenbacker Renewable Energy Corporation |
| Palmyra PV - BD Solar Palmyra LLC | Somerset | 5 MW | BD Solar Palmyra LLC |
| Penobscot Narrows Solar I | Hancock | 5 MW | Penobscot Narrows Solar I LLC |
| Quarry | York | 5 MW | Nautilus Solar Solutions |
| REDP - Trenton | Hancock | 5 MW | Standard Solar |
| River Road | Somerset | 5 MW | Norridgewock River Road Solar, LLC |
| Ryans Ranch | Oxford | 5 MW | Nautilus Solar Solutions |
| Sanford CGA | York | 5 MW | Nautilus Solar Solutions |
| Shaker | Cumberland | 5 MW | Nautilus Solar Solutions |
| Somerset Solar, LLC (ME) | Somerset | 5 MW | SREOG Partnership 2, LLC |
| South Paris PV, LLC | Oxford | 5 MW | SREOG Partnership 4, LLC |
| Standish | Cumberland | 5 MW | Nautilus Solar Solutions |
| Town House | Kennebec | 5 MW | Nautilus Solar Solutions |
| Unity Solar | Waldo | 5 MW | Madison Energy Holdings LLC |
| Water Street Solar | Kennebec | 5 MW | AES Distributed Energy |
| Arctaris Saddleback Solar | Franklin | 4.9 MW | Arctaris Saddleback Solar, LLC |
| Broadhead | Kennebec | 4.9 MW | Madison Energy Investments LLC |
| Caterpillar Hill | Hancock | 4.9 MW | AES Clean Energy |
| Dublin Street LLC | Washington | 4.9 MW | Dublin Street LLC |
| Dynamic - Enfield Hammett Road CSG | Penobscot | 4.9 MW | Altus Power America Management, LLC |
| Dynamic - Glenburn Broadway One (CSG) | Penobscot | 4.9 MW | Altus Power America Management, LLC |
| Dynamic - Gray Solar | Cumberland | 4.9 MW | Altus Power America Management, LLC |
| Dynamic - Leeds Solar (CSG) | Androscoggin | 4.9 MW | Nautilus Solar Solutions |
| Dynamic - Norridgewock Martin Stream (CSG) | Somerset | 4.9 MW | Nautilus Solar Solutions |
| Farmingdale FA01 | Kennebec | 4.9 MW | Nautilus Solar Solutions |
| Farmington | Franklin | 4.9 MW | Madison Energy Investments LLC |
| Fryeburg | Oxford | 4.9 MW | Nautilus Solar Solutions |
| Harmony Solar (ME) | Somerset | 4.9 MW | Maine DG Solar Harmony, LLC |
| Lewiston Junction Road Solar | Androscoggin | 4.9 MW | NextGrid Peppertree, LLC |
| Lincoln ME 1 | Penobscot | 4.9 MW | SREOG Partnership 1, LLC |
| Madison ESS | Somerset | 4.9 MW | Agilitas Energy, Inc. |
| Pittsfield Solar (N. Main St) | Somerset | 4.9 MW | Maine DG Solar Pittsfield, LLC |
| Rumford ESS | Oxford | 4.9 MW | Agilitas Energy, Inc. |
| Sabattus SB01 | Androscoggin | 4.9 MW | Nautilus Solar Solutions |
| Sanford -NY | York | 4.9 MW | Nautilus Solar Solutions |
| SCS Harpswell 012903 Brunswick, LLC | Cumberland | 4.9 MW | Arevon Energy, Inc. |
| SP-231 Clifton | Penobscot | 4.9 MW | Madison Energy Investments LLC |
| Waterboro | York | 4.9 MW | Madison Energy Investments LLC |
| Wymans Deblois | Washington | 4.9 MW | REC RWD, LLC |
| Perkins Road Belfast Solar, LLC | Waldo | 4.8 MW | REA Investments, LLC |
| Wells (ME) | York | 4.8 MW | Nautilus Solar Solutions |
| Broadway Solar (CSG) | Penobscot | 4.6 MW | NextGrid Bitterbush, LLC |
| Corkwood Solar (CSG) | Penobscot | 4.6 MW | NextGrid Corkwood, LLC |
| Merrill Road Solar | Androscoggin | 4.6 MW | NextGrid Mangrove, LLC |
| Webb Road Solar | Kennebec | 4.6 MW | NextGrid Mastic, LLC |
| Beaver Ridge Wind | Waldo | 4.5 MW | CPV Beaver Ridge Wind LLC |
| BWC Unity Pond LLC | Kennebec | 4.5 MW | Navisun LLC |
| Dynamic - Wales Leeds Junction Road (CSG) | Androscoggin | 4.5 MW | Altus Power America Management, LLC |
| Fox Island Wind LLC | Knox | 4.5 MW | Fox Island Wind LLC |
| Milo CSG | Piscataquis | 4.5 MW | Milo CSG, LLC |
| Route 3 China Solar, LLC | Kennebec | 4.5 MW | REA Investments, LLC |
| Treasure Lane Solar 1 | Kennebec | 4.5 MW | AES Clean Energy |
| Barefoot Solar | Somerset | 4.3 MW | Madison Energy Investments LLC |
| Benton Falls Associates | Kennebec | 4.2 MW | Essex Hydro Associates LLC |
| Caribou | Aroostook | 4.1 MW | Altus Power America Management, LLC |
| IOS - MEW Phase 1 | Somerset | 4.1 MW | Madison Energy Holdings LLC |
| Loring | Aroostook | 4.1 MW | Altus Power America Management, LLC |
| Winslow PV, LLC | Kennebec | 4.1 MW | SREOG Partnership 4, LLC |
| AES Pelletier Solar, LLC | Aroostook | 4 MW | AES Clean Energy |
| Dairy Farm | Somerset | 4 MW | Greenbacker Renewable Energy Corporation |
| Dynamic - Exeter Solar CSG | Penobscot | 4 MW | Altus Power America Management, LLC |
| Gardiner A, LLC | Kennebec | 4 MW | SREOG Partnership 1, LLC |
| Gateway Solar, LLC | Penobscot | 4 MW | SREOG ME Credit Seller 2, LLC |
| Hartland Solar | Somerset | 4 MW | Madison Energy Holdings LLC |
| ISM Solar Shepherd Acres | Oxford | 4 MW | Navisun LLC |
| Limestone - (ME) | Aroostook | 4 MW | Nautilus Solar Solutions |
| Madawaska Solar | Aroostook | 4 MW | SoCore Energy LLC |
| Mainely Solar (Wyman Hill Solar LLC) | Oxford | 4 MW | Wyman Hill Solar, LLC |
| Medway Hydro | Penobscot | 4 MW | Brookfield Black Bear Hydro, LLC |
| Nutting Ridge Solar, LLC | Oxford | 4 MW | REA Investments, LLC |
| Searsmont Road Lincolnville Solar, LLC | Waldo | 4 MW | REA Investments, LLC |
| Washington WS01 | Knox | 4 MW | Nautilus Solar Solutions |
| Orono B | Penobscot | 3.9 MW | Brookfield Black Bear Hydro, LLC |
| Knights Pond Solar, LLC | York | 3.9 MW | SREOG Partnership 1, LLC |
| RE Gardiner Solar, LLC | Kennebec | 3.9 MW | SREOG Partnership 1, LLC |
| Augusta Road Bowdoin Solar, LLC | Sagadahoc | 3.8 MW | REA Investments, LLC |
| Church Hill Road Augusta Solar, LLC | Kennebec | 3.8 MW | REA Investments, LLC |
| Eastern Maine Medical Center | Penobscot | 3.8 MW | Eastern Maine Medical Center |
| Lebanon CSG LLC | York | 3.8 MW | Dimension Energy LLC |
| Limestone CSG 1 LLC | Aroostook | 3.8 MW | Limestone CSG 1 LLC |
| 15 Glen Harris RD | Franklin | 3.6 MW | ME Sandy River LLC |
| Brassua Hydroelectric Project | Somerset | 3.6 MW | Brassua Hydroelectric LP |
| Acton | York | 3.5 MW | Acton H Road Solar 1, LLC |
| Berwick Hubbard Solar 1 | York | 3.5 MW | Berwick Hubbard Solar 1, LLC |
| BWC Maces Pond LLC | Knox | 3.5 MW | Navisun LLC |
| BRNG Nicolin (CSG) | Hancock | 3.3 MW | Nautilus Solar Solutions |
| Chester A, LLC | Franklin | 3.3 MW | SREOG Partnership 1, LLC |
| Easton CSG 1 LLC | Aroostook | 3.3 MW | Easton CSG 1 LLC |
| Livermore Falls CSG | Androscoggin | 3.3 MW | Livermore Falls CSG, LLC |
| Market Street Gardiner Solar, LLC | Kennebec | 3.3 MW | REA Investments, LLC |
| Vassalboro PV, LLC | Kennebec | 3.3 MW | SREOG Partnership 4, LLC |
| ME Novel Lighthouse - Front St. Solar CS | Somerset | 3.2 MW | Luminace Sunbeam Development Holdings, LLC |
| Robbins Lumber | WALDO | 3.2 MW | Robbins Lumber Inc |
| Waste Management Crossroads LFGTE | Somerset | 3.2 MW | WM Renewable Energy LLC |
| International Paper Jay Hydro | Franklin | 3.1 MW | Eagle Creek Renewable Energy, LLC |
| Valley Sun Solar | Aroostook | 3.1 MW | Valley Sun Solar LLC |
| Canton GLC Solar, LLC | Oxford | 3 MW | Addicus Advisors |
| ME Novel Lighthouse - Penobscot CSG | Penobscot | 3 MW | Luminace Sunbeam Development Holdings, LLC |
| Mechanic Street (CSG) | Aroostook | 3 MW | Nautilus Solar Solutions |
| Missile Street (CSG) | Aroostook | 3 MW | Nautilus Solar Solutions |
| NRS Bethel Solar, LLC | Oxford | 3 MW | SREOG Partnership 1, LLC |
| Pleasant Street | Franklin | 3 MW | Greenbacker Renewable Energy Corporation |
| Sheridan Road Solar Farm | Aroostook | 3 MW | Addicus Advisors |
| Athens Ridge | Somerset | 2.9 MW | Greenbacker Renewable Energy Corporation |
| Limestone CSG 2 LLC | Aroostook | 2.9 MW | Limestone CSG 2 LLC |
| ME Fort Fairfield Solar Plant | Aroostook | 2.8 MW | ME Fort Fairfield LLC |
| Messalonskee 2 (Oakland) | Kennebec | 2.8 MW | Messalonskee Stream Hydro LLC |
| Orono Hydro Station | Penobscot | 2.7 MW | Brookfield Black Bear Hydro, LLC |
| Mars Hill | Aroostook | 2.6 MW | Greenbacker Renewable Energy Corporation |
| Augusta | Kennebec | 2.5 MW | Maine DG Solar Augusta, LLC |
| Belfast PV, LLC | Waldo | 2.5 MW | SREOG ME Credit Seller 2, LLC |
| French Road Solar | Aroostook | 2.5 MW | SoCore Energy LLC |
| ME - Novel (Lighthouse Ph I) Mars Hill | Aroostook | 2.5 MW | Mars Hill Road Solar Farm, LLC |
| ME Novel Lighthouse - Huggard Ave Solar | Aroostook | 2.5 MW | Luminace Sunbeam Development Holdings, LLC |
| North Nobleboro Road, LLC | Lincoln | 2.5 MW | REA Investments, LLC |
| Skyway Avenue Solar Farm | Aroostook | 2.5 MW | REA Investments, LLC |
| Stillwater B | Penobscot | 2.4 MW | Brookfield Black Bear Hydro, LLC |
| MEVS DOT 109 | Kennebec | 2.2 MW | MEVS DOT, LLC |
| North Gorham | Cumberland | 2.2 MW | Brookfield White Pine Hydro LLC |
| RE Sidney Solar, LLC | Kennebec | 2.1 MW | SREOG Partnership 1, LLC |
| BNRG Norridgewock (CSG) | Somerset | 2 MW | Nautilus Solar Solutions |
| BNRG North Anson (CSG) | Somerset | 2 MW | Nautilus Solar Solutions |
| Crowley Solar, LLC | Androscoggin | 2 MW | SREOG Partnership 3, LLC |
| Houlton Road Solar Farm (CSG) | Aroostook | 2 MW | REA Investments, LLC |
| Lebanon West Lebanon Solar 1 | York | 2 MW | Lebanon West Lebanon Solar 1, LLC |
| Lisbon Street Solar | Androscoggin | 2 MW | NextGrid Cliffrose, LLC |
| Marshfield Solar, LLC | Washington | 2 MW | SREOG ME Credit Seller 1, LLC |
| Maxcy's Mill Solar, LLC | Kennebec | 2 MW | SREOG Partnership 2, LLC |
| ME CDG 004 | Penobscot | 2 MW | ME CDG 004 LLC |
| ME CDG 005 | Penobscot | 2 MW | ME CDG 005 LLC |
| MEVS Waterhouse | Cumberland | 2 MW | MEVS LLC |
| Naples | Cumberland | 2 MW | Naples Casco Solar 1, LLC |
| Samoset Solar | Knox | 2 MW | Samoset Solar, LLC |
| Union Street Solar, LLC | Penobscot | 2 MW | SREOG Partnership 2, LLC |
| Waldoboro Solar, LLC | Knox | 2 MW | SREOG Partnership 2, LLC |
| Stillwater Hydro Station | Penobscot | 1.8 MW | Brookfield Black Bear Hydro, LLC |
| Messalonskee 5 | Kennebec | 1.8 MW | Messalonskee Stream Hydro LLC |
| Richmond Hill | Sagadahoc | 1.8 MW | Greenbacker Renewable Energy Corporation |
| Mariaville Road Elsworth Solar, LLC | Hancock | 1.6 MW | REA Investments, LLC |
| Messalonskee 3 | Kennebec | 1.6 MW | Messalonskee Stream Hydro LLC |
| Oxford Solar, LLC | Oxford | 1.6 MW | SREOG ME Credit Seller 2, LLC |
| Upper Androscoggin | Androscoggin | 1.6 MW | Lewiston, City of - (ME) |
| Barker Lower | Androscoggin | 1.5 MW | KEI (Maine) Power Management (III) LLC |
| Madison BTM | Somerset | 1.5 MW | Agilitas Energy, Inc. |
| Sidney | Kennebec | 1.5 MW | Nautilus Solar Solutions |
| Solar Mule, LLC | Kennebec | 1.5 MW | Solar Mule, LLC |
| Squa Pan Hydro Station | Aroostook | 1.5 MW | Algonquin Northern Maine |
| Mechanic Falls | Androscoggin | 1.4 MW | KEI (Maine) Power Management (IV) LLC |
| Salmon Falls | York | 1.2 MW | Green Mountain Power Corp |
| Pittsfield Hydro | Somerset | 1.1 MW | KEI (Maine) Power Management (II) LLC |
| Boundary Line Solar, LLC | Cumberland | 1 MW | Dimension Energy LLC |
| Cenergy - Kiger | Somerset | 1 MW | Luminace Sunbeam Development Holdings, LLC |
| Cenergy - Richards (CSG) | Somerset | 1 MW | Luminace Sunbeam Development Holdings, LLC |
| Gardiner | Kennebec | 1 MW | KEI (Maine) Power Management (III) LLC |
| Lisbon CSG LLC | Androscoggin | 1 MW | Dimension Energy LLC |
| ME Augusta 13 York Farm Rd Solar | Kennebec | 1 MW | SOL ME Augusta 13 York Farm, LLC |
| Pumpkin Hill | Penobscot | 1 MW | KEI (Maine) Power Management (II) LLC |
| Roosevelt Trail | Cumberland | 1 MW | Madison Energy Investments LLC |
| SP-339 Mechanic Falls | Oxford | 1 MW | Madison Energy Investments LLC |
| Turner CSG LLC | Androscoggin | 1 MW | Dimension Energy LLC |
| Upper Barker | Androscoggin | 1 MW | KEI (Maine) Power Management (III) LLC |
| USS Weld Solar LLC | Franklin | 1 MW | Dimension Energy LLC |
| Water Line Solar, LLC | Cumberland | 1 MW | Dimension Energy LLC |
Customer-owned generation (net metering)
| Year | Photovoltaic (MW) | Battery or storage (MW) | Wind (MW) | Other (MW) | All technologies (MW) | Installations | Energy sold back (MWh) |
|---|---|---|---|---|---|---|---|
| 2021 | 123.0 | 6.5 | 31.6 | 192.1 | 11,160 | 128,781 | |
| 2022 | 311.8 | 6.5 | 32.2 | 519.2 | 25,004 | 349,018 | |
| 2023 | 548.5 | 0.1 | 6.5 | 34.1 | 1,011.5 | 50,008 | 649,326 |
| 2024 | 872.8 | 0.5 | 6.5 | 33.4 | 1,737.2 | 82,052 | 984,438 |
| 2025 | 957.9 | 1.2 | 6.5 | 37.2 | 1,886.2 | 90,780 | 1,378,567 |
| Sector | All technologies (MW) | Installations | Energy sold back (MWh) |
|---|---|---|---|
| Residential | 160.2 | 19,516 | 103,314 |
| Commercial | 1,723.4 | 71,261 | 1,275,254 |
| Industrial | 2.5 | 3 |
Distributed generation that is not net metered
A different arrangement: customer-sited or utility-owned generation that is paid or credited some other way, or not at all. EIA reports it separately, and it is not added to the net metering figures.
| Year | All technologies (MW) |
|---|---|
| 2021 | |
| 2022 | |
| 2023 | |
| 2024 | |
| 2025 |
We do not restate net metering rules, which change. The rules are with Maine Public Utilities Commission · the DSIRE policy database (NC Clean Energy Technology Center)
U.S. Energy Information Administration · Net metering and other distributed generation (Form EIA-861), 2021 to 2025 · data for 2025 · as of Oct 7, 2026 · retrieved Nov 1, 2026 · CC-BY-4.0 May be out of date. The next release was due by Oct 7, 2027. Last checked for an update: Nov 1, 2026.
Community solar
Maine has 510 community solar projects serving customers, 486.9 MW-AC in all, in the National Laboratory of the Rockies' list as of September 2026.
| Subscriptions marketed by | Projects | Capacity (MW-AC) |
|---|---|---|
| Not reported | 309 | 311.6 |
| Third Party | 201 | 175.3 |
In queue: market tracking, not a registry
The laboratory also tracks 7.9 MW-AC as in queue here as of September 2026: awarded, under construction, or likely to come online in the next few years.
Projects in queue change without notice, and many are never built. This figure is kept apart from the capacity serving customers and never added to it.
These counts and capacities are our own sums of the laboratory's project list; its license keeps us from publishing a copy of the list itself. About the dataset
Data: Kannan, S., Frey, N., Jayswal, R., Chan, G., and Simmons, I., Sharing the Sun: Community Solar Project Data (September 2026), National Laboratory of the Rockies, doi:10.7799/2438583. Credit: DOE/NLR/Alliance for Energy Innovation.