- Query
- Ma
- Type
- Data Lookup
- State
- ME
- Generated
- 2026-10-17T08:32:32.806Z
Analytical: All Plants in Maine
Data LookupGenerated Oct 17, 2026·Dataset freshness not reported
266
Plants
6.7 GW
Capacity
1
States
14
Queue Projects
266 plants in Maine by capacity
| Plant Name | State | Fuel | Owner | Capacity | Annual GWh | CF% | Year | Status | ISO |
|---|---|---|---|---|---|---|---|---|---|
| William F Wyman Hybrid | Maine | Residual Oil | NextEra Energy Maine | 863 MW | 66 | 0.9% | 1957 | Operating | ISO |
| Westbrook Energy Center Power Plant | Maine | Natural Gas | Constellation Energy | 564 MW | 2934 | 59.4% | 2001 | Operating | ISO |
| Maine Independence Station | Maine | Natural Gas | Vistra | 550 MW | 2547 | 52.7% | 2000 | Operating | ISO |
| Rumford Power LLC | Maine | Natural Gas | Carlyle Group | 275 MW | 638 | 26.4% | 2000 | Operating | ISO |
| Freedom Pine Solar | Maine | Solar | Freedom Pine Solar, LLC | 250 MW | — | — | — | Planned | ISO |
| Bucksport Generation LLC | Maine | Natural Gas | Bucksport Generation LLC | 187 MW | 10 | 0.6% | 2001 | Operating | ISO |
| Bingham Wind | Maine | Wind | Onward Energy Holdings | 186 MW | 481 | 29.6% | 2016 | Operating | ISO |
| Cross Town Energy Storage | Maine | BESS | Cross Town Energy Storage LLC | 175 MW | — | — | 2025 | Operating | ISO |
| Great Lakes Hydro America - ME | Maine | Hydro | Great Lakes Hydro America LLC | 158 MW | 571 | 41.2% | 1917 | Operating | ISO |
| Oakfield Wind Project | Maine | Wind | Onward Energy Holdings | 148 MW | 363 | 28.1% | 2015 | Operating | ISO |
| Kibby Wind Facility | Maine | Wind | LS Power Development | 132 MW | 255 | 22.1% | 2009 | Operating | ISO |
| Downeast Wind | Maine | Wind | Downeast Wind, LLC | 126 MW | 259 | 23.3% | 2025 | Operating | ISO |
| Three Corners Solar | Maine | Solar | Three Corners Solar, LLC | 110 MW | 189 | 19.6% | 2024 | Operating | ISO |
| Somerset Plant | Maine | Black Liquor | Sappi | 107 MW | 562 | 60.0% | 1976 | Operating | ISO |
| Rumford Cogeneration | Maine | Black Liquor | Nine Dragons Global Investments | 103 MW | 420 | 46.8% | 1990 | Operating | ISO |
| Three Rivers Solar Power, LLC | Maine | Solar | Three Rivers Solar Power, LLC | 100 MW | — | — | — | Under construction | ISO |
| Farmington Solar | Maine | Solar | NextEra Energy | 77 MW | 127 | 18.8% | 2021 | Operating | ISO |
| Harris Hydro | Maine | Hydro | Brookfield White Pine Hydro LLC | 76 MW | 170 | 25.4% | 1954 | Operating | ISO |
| Warren Meadow Solar Station | Maine | Solar | Warren Meadow Solar Station, LLC | 75 MW | — | — | — | Planned | ISO |
| Weaver Wind | Maine | Wind | Greenbacker Renewable Energy Corporation | 73 MW | 228 | 36.0% | 2020 | Operating | ISO |
| Wyman Hydro | Maine | Hydro | Brookfield White Pine Hydro LLC | 72 MW | 337 | 52.6% | 1930 | Operating | ISO |
| S D Warren Westbrook | Maine | Wood Waste | Sappi | 70 MW | 33 | 5.4% | 1903 | Operating | ISO |
| Woodland Pulp, LLC | Maine | Black Liquor | Woodland Pulp LLC | 68 MW | 382 | 63.7% | 1906 | Operating | — |
| Crooked Trail Solar | Maine | Solar | VCP Realty, LLC | 68 MW | — | — | — | Planned | ISO |
| Rollins Wind Project | Maine | Wind | Evergreen Wind, LLC | 60 MW | 136 | 25.9% | 2011 | Operating | ISO |
| Moscow | Maine | Wind | Greenbacker Renewable Energy Corporation | 59 MW | — | — | 2025 | Operating | ISO |
| Stetson Wind I | Maine | Wind | Evergreen Wind, LLC | 57 MW | 121 | 24.1% | 2009 | Operating | ISO |
| Rumford Falls Hydro Facility | Maine | Hydro | Brookfield Power New England | 53 MW | 261 | 56.5% | 1918 | Operating | ISO |
| Hancock Wind Plant | Maine | Wind | Onward Energy Holdings | 51 MW | 121 | 27.1% | 2016 | Operating | ISO |
| Record Hill Wind | Maine | Wind | Record Hill Wind LLC | 51 MW | 115 | 25.9% | 2012 | Operating | ISO |
| Sanford Solar | Maine | Solar | NextEra Energy | 49 MW | 87 | 20.1% | 2020 | Operating | ISO |
| ReEnergy Stratton LLC | Maine | Wood Waste | ReEnergy Holdings | 47 MW | 203 | 49.2% | 1989 | Operating | ISO |
| Passadumkeag Windpark LLC | Maine | Wind | Southern | 43 MW | 141 | 37.6% | 2016 | Operating | ISO |
| Mars Hill Wind Farm Project | Maine | Wind | Evergreen Wind, LLC | 42 MW | 119 | 32.3% | 2007 | Operating | — |
| ReEnergy Livermore Falls | Maine | Wood Waste | Ember Infrastructure Management | 40 MW | 267 | 76.7% | 1992 | Operating | ISO |
| Cape Gas Turbine | Maine | Distillate Oil | FPL Energy Cape LLC | 35 MW | 0 | 0.0% | 1970 | Operating | ISO |
| Bull Hill Wind Project | Maine | Wind | Evergreen Wind, LLC | 35 MW | 74 | 24.5% | 2012 | Operating | ISO |
| Saddleback Ridge Wind Farm | Maine | Wind | CPV Saddleback Ridge Wind, LLC | 34 MW | 83 | 27.6% | 2014 | Operating | ISO |
| Anson Abenaki Hydros | Maine | Hydro | Eagle Creek Renewable Energy, LLC | 29 MW | 116 | 45.6% | 1950 | Operating | ISO |
| Red Shield Envir Old Town Facility | Maine | Wood Waste | Nine Dragons Global Investments | 29 MW | — | — | 1965 | Out of service | ISO |
| Charles E Monty | Maine | Hydro | Brookfield White Pine Hydro LLC | 28 MW | 141 | 56.3% | 1990 | Operating | ISO |
| NE Renewable Power West Enfield | Maine | Wood Waste | Brookfield Asset Management | 28 MW | 51 | 21.0% | 1987 | Operating | ISO |
| NE Renewable Power Jonesboro | Maine | Wood Waste | Brookfield Asset Management | 28 MW | 0 | 0.0% | 1987 | Standby | ISO |
| Stetson Wind II | Maine | Wind | Evergreen Wind, LLC | 26 MW | 50 | 22.2% | 2010 | Operating | ISO |
| Eagle Point Energy Center | Maine | Muni. Waste | Town of Orrington | 25 MW | — | — | 1987 | Operating | ISO |
| Canton Mountain Wind | Maine | Wind | CPV Canton Mountain Wind LLC | 23 MW | 51 | 25.3% | 2017 | Operating | ISO |
| Twin Rivers Paper Co LLC | Maine | Purchased Steam | Twin Rivers Paper Co LLC | 22 MW | 97 | 50.4% | 1987 | Operating | — |
| Spruce Mountain WInd | Maine | Wind | CPV Spruce Mountain Wind LLC | 20 MW | 54 | 30.7% | 2011 | Operating | ISO |
| Mousam River Solar | Maine | Solar | Walden Renewables Development LLC | 20 MW | — | — | 2025 | Operating | ISO |
| Walden Solar Maine V | Maine | Solar | Walden Solar Maine V LLC | 20 MW | 0 | 0.1% | 2024 | Operating | ISO |
| Milo PV - BD Solar 1 LLC | Maine | Solar | BD Solar 1 LLC | 20 MW | 31 | 17.6% | 2021 | Operating | ISO |
| Silver Maple | Maine | Wind | WEB Silver Maple Wind LLC | 20 MW | 59 | 33.5% | 2022 | Operating | ISO |
| Turner Meadow Solar Station | Maine | Solar | Turner Meadow Solar Station, LLC | 20 MW | — | — | — | Planned | ISO |
| Brunswick Hydro | Maine | Hydro | Brookfield White Pine Hydro LLC | 20 MW | 88 | 51.1% | 1982 | Operating | ISO |
| Worumbo Hydro Station | Maine | Hydro | Eagle Creek Renewable Energy, LLC | 19 MW | 89 | 51.9% | 1989 | Operating | ISO |
| Gulf Island | Maine | Hydro | Brookfield White Pine Hydro LLC | 19 MW | 136 | 77.6% | 1926 | Operating | ISO |
| Topsham Meadow Solar Station | Maine | Solar | Topsham Meadow Solar Station LLC | 17 MW | — | — | — | Planned | ISO |
| West Baldwin Solar Station | Maine | Solar | West Baldwin Solar Station LLC | 17 MW | — | — | — | Planned | ISO |
| Skelton | Maine | Hydro | Brookfield White Pine Hydro LLC | 17 MW | 58 | 39.0% | 1948 | Operating | ISO |
| Emery Meadow Solar Station | Maine | Solar | Emery Meadow Solar Station, LLC | 16 MW | — | — | — | Planned | ISO |
| Hydro Kennebec Project | Maine | Hydro | Hydro Kennebec LLC | 15 MW | 27 | 20.0% | 1989 | Operating | ISO |
| RoxWind | Maine | Wind | RoxWind LLC | 15 MW | 36 | 26.7% | 2021 | Operating | ISO |
| Bonny Eagle | Maine | BESS | Brookfield White Pine Hydro LLC | 15 MW | 33 | 24.7% | 1910 | Operating | ISO |
| Pejepscot Hydroelectric Project | Maine | Hydro | Topsham Hydro Partners | 14 MW | 49 | 41.0% | 1987 | Operating | ISO |
| Regional Waste Systems | Maine | Muni. Waste | municipally owned | 13 MW | 90 | 76.9% | 1988 | Operating | ISO |
| West Enfield Hydro | Maine | Hydro | Brookfield Black Bear Hydro, LLC | 13 MW | 77 | 66.5% | 1988 | Operating | ISO |
| Williams Hydro | Maine | Hydro | Brookfield White Pine Hydro LLC | 13 MW | 80 | 70.2% | 1939 | Operating | ISO |
| Weston Hydro | Maine | Hydro | Brookfield White Pine Hydro LLC | 12 MW | 57 | 54.3% | 1920 | Operating | ISO |
| Hiram | Maine | Hydro | Brookfield White Pine Hydro LLC | 11 MW | 40 | 43.5% | 1917 | Operating | ISO |
| Otis Hydro | Maine | Hydro | Eagle Creek Renewable Energy, LLC | 10 MW | 29 | 32.7% | 1985 | Operating | ISO |
| Georges River Energy | Maine | Wood Waste | Robbins Lumber | 10 MW | 52 | 59.0% | 2018 | Operating | ISO |
| South Portland ESS, LLC | Maine | BESS | South Portland ESS, LLC | 10 MW | — | — | — | Planned | ISO |
| Pittsfield Solar LLC | Maine | Solar | Pittsfiled Solar LLC | 10 MW | 17 | 19.0% | 2017 | Operating | ISO |
| International Paper Livermore Hydro | Maine | Hydro | Eagle Creek Renewable Energy, LLC | 9 MW | 17 | 21.3% | 1910 | Operating | ISO |
| Oxford PV - BD Solar Oxford LLC | Maine | Solar | BD Solar Oxford LLC | 9 MW | 15 | 18.2% | 2021 | Operating | ISO |
| Pisgah Mountain Wind | Maine | Wind | Pisgah Mountain, LLC | 9 MW | 25 | 31.7% | 2016 | Operating | ISO |
| Ellsworth Hydro Station | Maine | Hydro | Brookfield Black Bear Hydro, LLC | 9 MW | 22 | 28.0% | 1924 | Operating | ISO |
| Shawmut | Maine | Hydro | Brookfield White Pine Hydro LLC | 9 MW | 17 | 21.9% | 1913 | Operating | ISO |
| Athens Energy | Maine | Wood Waste | Athens Energy, LLC | 9 MW | 58 | 78.0% | 2016 | Operating | ISO |
| Milford Hydro Station | Maine | Hydro | Brookfield Black Bear Hydro, LLC | 8 MW | 37 | 54.4% | 1941 | Operating | ISO |
| West Buxton | Maine | Hydro | Brookfield White Pine Hydro LLC | 8 MW | 20 | 30.2% | 1904 | Operating | ISO |
| Lockwood Hydroelectric Facility | Maine | Hydro | Merimil Ltd Partnership | 7 MW | 14 | 21.4% | 1985 | Operating | ISO |
| Augusta PV - BD Solar Augusta LLC | Maine | Solar | BD Solar Augusta LLC | 7 MW | 10 | 15.9% | 2021 | Operating | ISO |
| BD Solar Hancock LLC | Maine | Solar | BD Solar Hancock LLC | 7 MW | 7 | 12.1% | 2022 | Operating | ISO |
| Winslow PV - BD Solar 2 LLC | Maine | Solar | BD Solar 2 LLC | 7 MW | 13 | 20.5% | 2022 | Operating | ISO |
| BD Solar Ellsworth LLC | Maine | Solar | BD Solar Hancock North LLC | 7 MW | 6 | 9.1% | 2022 | Operating | ISO |
| Aziscohos Hydroelectric Project | Maine | Hydro | Brookfield White Pine Hydro LLC | 7 MW | 36 | 61.7% | 1988 | Operating | ISO |
| International Paper Riley Hydro | Maine | Hydro | Eagle Creek Renewable Energy, LLC | 7 MW | 18 | 30.4% | 1981 | Operating | ISO |
| Cataract Hydro | Maine | Hydro | Brookfield White Pine Hydro LLC | 7 MW | 28 | 49.1% | 1937 | Operating | ISO |
| Deer Rips | Maine | Hydro | Brookfield White Pine Hydro LLC | 7 MW | 58 | 84.2% | 1903 | Operating | ISO |
| MMWAC Resource Recovery Facility | Maine | Muni. Waste | Maine Waste to Energy | 5 MW | 10 | 22.9% | 1992 | Operating | ISO |
| Bates College Skowhegan | Maine | Solar | Westbound Solar 3, LLC | 5 MW | 9 | 20.6% | 2023 | Operating | ISO |
| Lewiston Jn PV - BD Solar Lewiston Jn LL | Maine | Solar | BD Solar Lewiston Junction LLC | 5 MW | — | — | — | Planned | ISO |
| Auburn PV - BD Solar Auburn LLC | Maine | Solar | BD Solar Auburn LLC | 5 MW | — | — | — | Planned | ISO |
| ME - EDF - Phase II - Belfast | Maine | Solar | Shining Solar Partners, LLC | 5 MW | 1 | 1.3% | 2024 | Operating | ISO |
| Athens AT01 | Maine | Solar | Nautilus Solar Solutions | 5 MW | 7 | 15.4% | 2022 | Operating | ISO |
| MD - EDFR - Phase II - Lewiston | Maine | Solar | Hayworth Solar Partners, LLC | 5 MW | — | — | 2024 | Operating | ISO |
| Standish | Maine | Solar | Nautilus Solar Solutions | 5 MW | 7 | 16.6% | 2023 | Operating | ISO |
| Town House | Maine | Solar | Nautilus Solar Solutions | 5 MW | 8 | 18.6% | 2022 | Operating | ISO |
| ME-EDFR-Phase I-Woolwich | Maine | Solar | Green Mile Solar, LLC | 5 MW | 7 | 15.8% | 2023 | Operating | ISO |
| ME-EDFR-Phase I-Embden | Maine | Solar | Tower Solar Partners, LLC | 5 MW | 8 | 17.1% | 2023 | Operating | ISO |
| BWC Beech Ridge Brook, LLC | Maine | Solar | Navisun LLC | 5 MW | 8 | 17.2% | 2023 | Operating | ISO |
| North Bridgton | Maine | Solar | Nautilus Solar Solutions | 5 MW | 8 | 19.0% | 2022 | Operating | ISO |
| Penobscot Narrows Solar I | Maine | Solar | Penobscot Narrows Solar I LLC | 5 MW | — | — | 2024 | Operating | ISO |
| BNRG Masardis (CSG) | Maine | Solar | Nautilus Solar Solutions | 5 MW | — | — | 2024 | Operating | ISO |
| MEVS Clark LLC | Maine | Solar | MEVS Clark LLC | 5 MW | — | — | 2023 | Operating | ISO |
| Oakland | Maine | Solar | Nautilus Solar Solutions | 5 MW | 9 | 20.5% | 2022 | Operating | ISO |
| Quarry | Maine | Solar | Nautilus Solar Solutions | 5 MW | 10 | 23.6% | 2022 | Operating | ISO |
| Ryans Ranch | Maine | Solar | Nautilus Solar Solutions | 5 MW | 3 | 6.4% | 2022 | Operating | ISO |
| Sanford CGA | Maine | Solar | Nautilus Solar Solutions | 5 MW | 0 | 0.5% | 2024 | Operating | ISO |
| Shaker | Maine | Solar | Nautilus Solar Solutions | 5 MW | 6 | 14.8% | 2022 | Operating | ISO |
| Sanford ESS, LLC | Maine | BESS | Sanford ESS, LLC | 5 MW | — | — | — | Planned | ISO |
| Brewer (CSG) | Maine | Solar | Nautilus Solar Solutions | 5 MW | 3 | 5.9% | 2024 | Operating | ISO |
| REDP - Trenton | Maine | Solar | Standard Solar | 5 MW | — | — | 2025 | Operating | ISO |
| BWC Jimmie Pond | Maine | Solar | Navisun LLC | 5 MW | — | — | 2025 | Operating | ISO |
| Caribou Solar | Maine | Solar | SoCore Energy LLC | 5 MW | — | — | 2024 | Operating | ISO |
| Unity Solar | Maine | Solar | Madison Energy Holdings LLC | 5 MW | 8 | 17.4% | 2021 | Operating | ISO |
| AES Daigle Solar, LLC | Maine | Solar | AES Clean Energy | 5 MW | 7 | 15.2% | 2023 | Operating | — |
| Fort Fairfield | Maine | Solar | Standard Solar | 5 MW | 8 | 18.4% | 2023 | Operating | ISO |
| Fairfield PV - BD Solar Fairfield LLC | Maine | Solar | BD Solar Fairfield LLC | 5 MW | 8 | 18.7% | 2021 | Operating | ISO |
| Cenergy - Pulk | Maine | Solar | BAP Grounded 2 LLC | 5 MW | — | — | 2024 | Operating | ISO |
| Cenergy - Waterville (CSG) | Maine | Solar | Luminace Sunbeam Development Holdings, LLC | 5 MW | 9 | 20.7% | 2023 | Operating | ISO |
| Cenergy - Wiscasset (CSG) | Maine | Solar | Luminace Sunbeam Development Holdings, LLC | 5 MW | 9 | 19.4% | 2023 | Operating | ISO |
| River Road | Maine | Solar | Norridgewock River Road Solar, LLC | 5 MW | 8 | 18.6% | 2022 | Operating | ISO |
| Monmouth | Maine | Solar | Maine DG Solar Monmouth, LLC | 5 MW | 9 | 21.3% | 2022 | Operating | ISO |
| Baldwin (ME) | Maine | Solar | Maine DG Solar Baldwin, LLC | 5 MW | 10 | 22.4% | 2022 | Operating | ISO |
| Water Street Solar | Maine | Solar | AES Distributed Energy | 5 MW | 7 | 15.9% | 2022 | Operating | ISO |
| ME Novel Lighthouse - Carrabassett | Maine | Solar | Luminace Sunbeam Development Holdings, LLC | 5 MW | 5 | 11.9% | 2023 | Operating | ISO |
| ME - EDFR - Phase I - Bristol | Maine | Solar | Overlook Solar Partners, LLC | 5 MW | 6 | 13.1% | 2023 | Operating | ISO |
| Our Katahdin | Maine | Solar | Greenbacker Renewable Energy Corporation | 5 MW | — | — | 2024 | Operating | ISO |
| Palmyra PV - BD Solar Palmyra LLC | Maine | Solar | BD Solar Palmyra LLC | 5 MW | 8 | 19.4% | 2022 | Operating | ISO |
| Dynamic Madison (CSG) | Maine | Solar | MN8 Energy LLC | 5 MW | 10 | 22.5% | 2022 | Operating | ISO |
| Dynamic Corinth (CSG) | Maine | Solar | MN8 Energy LLC | 5 MW | 9 | 21.1% | 2022 | Operating | ISO |
| Gorham Solar 1 (CSG) | Maine | Solar | CleanCapital Holdings | 5 MW | 8 | 17.8% | 2023 | Operating | ISO |
| Madison ESS | Maine | BESS | Agilitas Energy, Inc. | 5 MW | -0 | -0.1% | 2019 | Operating | ISO |
| Dublin Street LLC | Maine | Solar | Dublin Street LLC | 5 MW | — | — | 2024 | Operating | ISO |
| Dynamic - Glenburn Broadway One (CSG) | Maine | Solar | Altus Power America Management, LLC | 5 MW | — | — | 2024 | Operating | ISO |
| Dynamic - Enfield Hammett Road CSG | Maine | Solar | Altus Power America Management, LLC | 5 MW | 1 | 3.0% | 2024 | Operating | ISO |
| Dynamic - Gray Solar | Maine | Solar | Altus Power America Management, LLC | 5 MW | — | — | 2024 | Operating | ISO |
| Rumford ESS | Maine | BESS | Agilitas Energy, Inc. | 5 MW | -0 | -0.2% | 2021 | Operating | ISO |
| Dynamic - Leeds Solar (CSG) | Maine | Solar | Nautilus Solar Solutions | 5 MW | 1 | 1.5% | 2024 | Operating | ISO |
| Dynamic - Norridgewock Martin Stream (CSG) | Maine | Solar | Nautilus Solar Solutions | 5 MW | 0 | 0.5% | 2024 | Operating | ISO |
| Pittsfield Solar (N. Main St) | Maine | Solar | Maine DG Solar Pittsfield, LLC | 5 MW | 8 | 19.6% | 2023 | Operating | ISO |
| Arctaris Saddleback Solar | Maine | Solar | Arctaris Saddleback Solar, LLC | 5 MW | 5 | 11.8% | 2023 | Operating | ISO |
| Harmony Solar (ME) | Maine | Solar | Maine DG Solar Harmony, LLC | 5 MW | 9 | 20.7% | 2022 | Operating | ISO |
| SCS Harpswell 012903 Brunswick, LLC | Maine | Solar | Arevon Energy, Inc. | 5 MW | 7 | 16.6% | 2022 | Operating | ISO |
| Lewiston Junction Road Solar | Maine | Solar | NextGrid Peppertree, LLC | 5 MW | 7 | 16.1% | 2022 | Operating | ISO |
| SP-231 Clifton | Maine | Solar | Madison Energy Investments LLC | 5 MW | — | — | 2024 | Operating | ISO |
| Wymans Deblois | Maine | Solar | REC RWD, LLC | 5 MW | 0 | 0.8% | 2024 | Operating | — |
| Waterboro | Maine | Solar | Madison Energy Investments LLC | 5 MW | 4 | 10.2% | 2023 | Operating | ISO |
| Sabattus SB01 | Maine | Solar | Nautilus Solar Solutions | 5 MW | 8 | 17.5% | 2023 | Operating | ISO |
| Sanford -NY | Maine | Solar | Nautilus Solar Solutions | 5 MW | 8 | 18.6% | 2024 | Operating | ISO |
| Farmington | Maine | Solar | Madison Energy Investments LLC | 5 MW | 6 | 12.8% | 2023 | Operating | ISO |
| Fryeburg | Maine | Solar | Nautilus Solar Solutions | 5 MW | 9 | 21.8% | 2023 | Operating | ISO |
| Farmingdale FA01 | Maine | Solar | Nautilus Solar Solutions | 5 MW | 8 | 17.7% | 2022 | Operating | ISO |
| Caterpillar Hill | Maine | Solar | AES Clean Energy | 5 MW | 9 | 20.5% | 2023 | Operating | ISO |
| Broadhead | Maine | Solar | Madison Energy Investments LLC | 5 MW | — | — | 2023 | Operating | ISO |
| Perkins Road Belfast Solar, LLC | Maine | Solar | REA Investments, LLC | 5 MW | 9 | 22.1% | 2021 | Operating | ISO |
| Wells (ME) | Maine | Solar | Nautilus Solar Solutions | 5 MW | 6 | 15.4% | 2022 | Operating | ISO |
| Webb Road Solar | Maine | Solar | NextGrid Mastic, LLC | 5 MW | 6 | 14.5% | 2022 | Operating | ISO |
| Merrill Road Solar | Maine | Solar | NextGrid Mangrove, LLC | 5 MW | 7 | 16.1% | 2022 | Operating | ISO |
| Broadway Solar (CSG) | Maine | Solar | NextGrid Bitterbush, LLC | 5 MW | 5 | 12.6% | 2023 | Operating | ISO |
| Corkwood Solar (CSG) | Maine | Solar | NextGrid Corkwood, LLC | 5 MW | 5 | 13.4% | 2023 | Operating | ISO |
| Milo CSG | Maine | Solar | Milo CSG, LLC | 5 MW | 7 | 17.6% | 2022 | Operating | ISO |
| Treasure Lane Solar 1 | Maine | Solar | AES Clean Energy | 5 MW | 7 | 17.8% | 2023 | Operating | ISO |
| BWC Unity Pond LLC | Maine | Solar | Navisun LLC | 5 MW | 8 | 20.4% | 2023 | Operating | ISO |
| Dynamic - Wales Leeds Junction Road (CSG) | Maine | Solar | Altus Power America Management, LLC | 5 MW | — | — | 2024 | Operating | ISO |
| Route 3 China Solar, LLC | Maine | Solar | REA Investments, LLC | 5 MW | 9 | 22.2% | 2022 | Operating | ISO |
| Beaver Ridge Wind | Maine | Wind | CPV Beaver Ridge Wind LLC | 5 MW | 10 | 26.3% | 2008 | Operating | ISO |
| Fox Island Wind LLC | Maine | Wind | Fox Island Wind LLC | 5 MW | 8 | 19.4% | 2009 | Operating | ISO |
| Barefoot Solar | Maine | Solar | Madison Energy Investments LLC | 4 MW | 7 | 17.6% | 2022 | Operating | ISO |
| Benton Falls Associates | Maine | Hydro | Essex Hydro Associates LLC | 4 MW | 4 | 11.6% | 1987 | Operating | ISO |
| Caribou | Maine | Solar | Altus Power America Management, LLC | 4 MW | 6 | 17.6% | 2023 | Operating | ISO |
| Loring | Maine | Solar | Altus Power America Management, LLC | 4 MW | 6 | 16.9% | 2023 | Operating | ISO |
| IOS - MEW Phase 1 | Maine | Solar | Madison Energy Holdings LLC | 4 MW | 1 | 2.8% | 2017 | Operating | ISO |
| Medway Hydro | Maine | Hydro | Brookfield Black Bear Hydro, LLC | 4 MW | 23 | 66.5% | 1923 | Operating | ISO |
| Mainely Solar (Wyman Hill Solar LLC) | Maine | Solar | Wyman Hill Solar, LLC | 4 MW | 5 | 13.6% | 2022 | Operating | ISO |
| Searsmont Road Lincolnville Solar, LLC | Maine | Solar | REA Investments, LLC | 4 MW | 4 | 10.3% | 2022 | Operating | — |
| Washington WS01 | Maine | Solar | Nautilus Solar Solutions | 4 MW | 6 | 16.0% | 2022 | Operating | ISO |
| Dairy Farm | Maine | Solar | Greenbacker Renewable Energy Corporation | 4 MW | 1 | 2.1% | 2024 | Operating | ISO |
| Madawaska Solar | Maine | Solar | SoCore Energy LLC | 4 MW | — | — | 2024 | Operating | ISO |
| ISM Solar Shepherd Acres | Maine | Solar | Navisun LLC | 4 MW | 0 | 0.2% | 2024 | Operating | ISO |
| Nutting Ridge Solar, LLC | Maine | Solar | REA Investments, LLC | 4 MW | 7 | 19.3% | 2023 | Operating | ISO |
| AES Pelletier Solar, LLC | Maine | Solar | AES Clean Energy | 4 MW | 4 | 10.2% | 2023 | Operating | — |
| Dynamic - Exeter Solar CSG | Maine | Solar | Altus Power America Management, LLC | 4 MW | 1 | 2.0% | 2024 | Operating | ISO |
| Hartland Solar | Maine | Solar | Madison Energy Holdings LLC | 4 MW | 7 | 19.7% | 2021 | Operating | ISO |
| Orono B | Maine | Hydro | Brookfield Black Bear Hydro, LLC | 4 MW | 21 | 62.2% | 2013 | Operating | ISO |
| Eastern Maine Medical Center | Maine | Natural Gas | Eastern Maine Medical Center | 4 MW | 30 | 91.1% | 2006 | Operating | ISO |
| Lebanon CSG LLC | Maine | Solar | Dimension Energy LLC | 4 MW | 0 | 0.3% | 2024 | Operating | ISO |
| Church Hill Road Augusta Solar, LLC | Maine | Solar | REA Investments, LLC | 4 MW | 7 | 19.9% | 2022 | Operating | ISO |
| Augusta Road Bowdoin Solar, LLC | Maine | Solar | REA Investments, LLC | 4 MW | 6 | 17.1% | 2022 | Operating | ISO |
| Limestone CSG 1 LLC | Maine | Solar | Limestone CSG 1 LLC | 4 MW | 0 | 0.0% | 2024 | Operating | ISO |
| Brassua Hydroelectric Project | Maine | Hydro | Brassua Hydroelectric LP | 4 MW | 10 | 32.9% | 1989 | Operating | ISO |
| 15 Glen Harris RD | Maine | Solar | ME Sandy River LLC | 4 MW | 2 | 7.4% | 2024 | Operating | ISO |
| BWC Maces Pond LLC | Maine | Solar | Navisun LLC | 4 MW | 5 | 16.4% | 2021 | Operating | ISO |
| Acton | Maine | Solar | Acton H Road Solar 1, LLC | 4 MW | 5 | 14.9% | 2021 | Operating | ISO |
| Berwick Hubbard Solar 1 | Maine | Solar | Berwick Hubbard Solar 1, LLC | 4 MW | — | — | 2024 | Operating | ISO |
| Livermore Falls CSG | Maine | Solar | Livermore Falls CSG, LLC | 3 MW | 5 | 18.3% | 2022 | Operating | ISO |
| Easton CSG 1 LLC | Maine | Solar | Easton CSG 1 LLC | 3 MW | 5 | 18.1% | 2024 | Operating | ISO |
| BRNG Nicolin (CSG) | Maine | Solar | Nautilus Solar Solutions | 3 MW | 0 | 0.9% | 2024 | Operating | ISO |
| Market Street Gardiner Solar, LLC | Maine | Solar | REA Investments, LLC | 3 MW | 7 | 22.7% | 2022 | Operating | ISO |
| Waste Management Crossroads LFGTE | Maine | Landfill Gas | Waste Management | 3 MW | 18 | 65.5% | 2009 | Operating | ISO |
| Robbins Lumber | Maine | Distillate Oil | Robbins Lumber | 3 MW | — | — | 1981 | Operating | ISO |
| ME Novel Lighthouse - Front St. Solar CS | Maine | Solar | Luminace Sunbeam Development Holdings, LLC | 3 MW | 4 | 13.8% | 2023 | Operating | ISO |
| Valley Sun Solar | Maine | Solar | Valley Sun Solar LLC | 3 MW | — | — | 2024 | Operating | ISO |
| International Paper Jay Hydro | Maine | Hydro | Eagle Creek Renewable Energy, LLC | 3 MW | 7 | 26.0% | 1912 | Operating | ISO |
| Missile Street (CSG) | Maine | Solar | Nautilus Solar Solutions | 3 MW | 0 | 0.0% | 2024 | Operating | ISO |
| Mechanic Street (CSG) | Maine | Solar | Nautilus Solar Solutions | 3 MW | 0 | 0.0% | 2024 | Operating | ISO |
| Canton GLC Solar, LLC | Maine | Solar | REA Investments, LLC | 3 MW | 5 | 18.2% | 2024 | Operating | ISO |
| Sheridan Road Solar Farm | Maine | Solar | REA Investments, LLC | 3 MW | — | — | 2024 | Operating | ISO |
| ME Novel Lighthouse - Penobscot CSG | Maine | Solar | Luminace Sunbeam Development Holdings, LLC | 3 MW | 1 | 4.1% | 2024 | Operating | ISO |
| Pleasant Street | Maine | Solar | Greenbacker Renewable Energy Corporation | 3 MW | 5 | 18.8% | 2023 | Operating | ISO |
| Athens Ridge | Maine | Solar | Greenbacker Renewable Energy Corporation | 3 MW | 5 | 18.7% | 2024 | Operating | ISO |
| Limestone CSG 2 LLC | Maine | Solar | Limestone CSG 2 LLC | 3 MW | 0 | 0.3% | 2024 | Operating | ISO |
| Messalonskee 2 (Oakland) | Maine | Hydro | Messalonskee Stream Hydro LLC | 3 MW | 11 | 44.0% | 1924 | Operating | ISO |
| ME Fort Fairfield Solar Plant | Maine | Solar | ME Fort Fairfield LLC | 3 MW | — | — | 2024 | Operating | ISO |
| Orono Hydro Station | Maine | Hydro | Brookfield Black Bear Hydro, LLC | 3 MW | 6 | 24.3% | 2009 | Operating | ISO |
| Mars Hill | Maine | Solar | Greenbacker Renewable Energy Corporation | 3 MW | 0 | 0.5% | 2024 | Operating | ISO |
| Augusta | Maine | Solar | Maine DG Solar Augusta, LLC | 3 MW | 5 | 21.3% | 2022 | Operating | ISO |
| ME Novel Lighthouse - Huggard Ave Solar | Maine | Solar | Luminace Sunbeam Development Holdings, LLC | 3 MW | 3 | 13.2% | 2024 | Operating | — |
| French Road Solar | Maine | Solar | SoCore Energy LLC | 3 MW | — | — | 2024 | Operating | ISO |
| Skyway Avenue Solar Farm | Maine | Solar | REA Investments, LLC | 3 MW | 2 | 7.9% | 2024 | Operating | ISO |
| North Nobleboro Road, LLC | Maine | Solar | REA Investments, LLC | 3 MW | 5 | 20.5% | 2021 | Operating | ISO |
| ME - Novel (Lighthouse Ph I) Mars Hill | Maine | Solar | Mars Hill Road Solar Farm, LLC | 3 MW | 0 | 0.1% | 2024 | Operating | ISO |
| Stillwater B | Maine | Hydro | Brookfield Black Bear Hydro, LLC | 2 MW | 11 | 49.9% | 2013 | Operating | ISO |
| North Gorham | Maine | Hydro | Brookfield White Pine Hydro LLC | 2 MW | 7 | 34.2% | 1925 | Operating | ISO |
| MEVS DOT 109 | Maine | Solar | MEVS DOT, LLC | 2 MW | 4 | 19.8% | 2023 | Operating | ISO |
| Hogs Bay | Maine | Solar | Greenbacker Renewable Energy Corporation | 2 MW | — | — | — | Under construction | ISO |
| Lebanon West Lebanon Solar 1 | Maine | Solar | Lebanon West Lebanon Solar 1, LLC | 2 MW | — | — | 2024 | Operating | ISO |
| Houlton Road Solar Farm (CSG) | Maine | Solar | REA Investments, LLC | 2 MW | — | — | 2024 | Operating | ISO |
| MEVS Waterhouse | Maine | Solar | MEVS LLC | 2 MW | — | — | 2024 | Operating | ISO |
| BNRG North Anson (CSG) | Maine | Solar | Nautilus Solar Solutions | 2 MW | 0 | 1.1% | 2024 | Operating | ISO |
| BNRG Norridgewock (CSG) | Maine | Solar | Nautilus Solar Solutions | 2 MW | 0 | 1.3% | 2024 | Operating | ISO |
| ME CDG 005 | Maine | Solar | ME CDG 005 LLC | 2 MW | — | — | 2024 | Operating | ISO |
| ME CDG 004 | Maine | Solar | ME CDG 004 LLC | 2 MW | — | — | 2024 | Operating | ISO |
| Samoset Solar | Maine | Solar | Samoset Solar, LLC | 2 MW | 4 | 21.4% | 2023 | Operating | ISO |
| Naples | Maine | Solar | Naples Casco Solar 1, LLC | 2 MW | 3 | 15.3% | 2021 | Operating | ISO |
| Lisbon Street Solar | Maine | Solar | NextGrid Cliffrose, LLC | 2 MW | 3 | 16.8% | 2022 | Operating | ISO |
| Stillwater Hydro Station | Maine | Hydro | Brookfield Black Bear Hydro, LLC | 2 MW | 7 | 44.0% | 1913 | Operating | ISO |
| Messalonskee 5 | Maine | Hydro | Messalonskee Stream Hydro LLC | 2 MW | 3 | 21.0% | 1935 | Operating | ISO |
| Richmond Hill | Maine | Solar | Greenbacker Renewable Energy Corporation | 2 MW | 3 | 16.3% | 2023 | Operating | ISO |
| Messalonskee 3 | Maine | Hydro | Messalonskee Stream Hydro LLC | 2 MW | 7 | 46.3% | 1918 | Operating | ISO |
| Upper Androscoggin | Maine | Hydro | Lewiston, City of - (ME) | 2 MW | — | — | 1920 | Out of service | ISO |
| Mariaville Road Elsworth Solar, LLC | Maine | Solar | REA Investments, LLC | 2 MW | 3 | 19.4% | 2022 | Operating | ISO |
| Madison BTM | Maine | BESS | Agilitas Energy, Inc. | 2 MW | -0 | -0.3% | 2020 | Operating | ISO |
| Sidney | Maine | Solar | Nautilus Solar Solutions | 2 MW | 2 | 17.7% | 2023 | Operating | ISO |
| Barker Lower | Maine | Hydro | KEI (Maine) Power Management (III) LLC | 2 MW | 4 | 27.7% | 1986 | Operating | ISO |
| Squa Pan Hydro Station | Maine | Hydro | Algonquin Northern Maine | 2 MW | 0 | 2.9% | 1941 | Standby | — |
| Solar Mule, LLC | Maine | Solar | Solar Mule, LLC | 2 MW | 2 | 15.1% | 2017 | Operating | ISO |
| Mechanic Falls | Maine | Hydro | KEI (Maine) Power Management (IV) LLC | 1 MW | 2 | 15.4% | 1986 | Operating | ISO |
| Salmon Falls | Maine | Hydro | small shareholder(s) | 1 MW | 3 | 24.3% | 1986 | Operating | ISO |
| Pittsfield Hydro | Maine | Hydro | KEI (Maine) Power Management (II) LLC | 1 MW | 3 | 35.7% | 1986 | Operating | ISO |
| Pumpkin Hill | Maine | Hydro | KEI (Maine) Power Management (II) LLC | 1 MW | 3 | 36.7% | 1987 | Operating | ISO |
| Gardiner | Maine | Hydro | KEI (Maine) Power Management (III) LLC | 1 MW | 4 | 48.0% | 1985 | Operating | ISO |
| Upper Barker | Maine | Hydro | KEI (Maine) Power Management (III) LLC | 1 MW | 5 | 51.3% | 1987 | Operating | ISO |
| Emery Shute Solar One | Maine | Solar | VCP Realty, LLC | 1 MW | — | — | — | Planned | ISO |
| Lisbon CSG LLC | Maine | Solar | Dimension Energy LLC | 1 MW | — | — | 2025 | Operating | ISO |
| Turner CSG LLC | Maine | Solar | Dimension Energy LLC | 1 MW | — | — | 2025 | Operating | ISO |
| USS Weld Solar LLC | Maine | Solar | Dimension Energy LLC | 1 MW | — | — | 2025 | Operating | ISO |
| Water Line Solar, LLC | Maine | Solar | Dimension Energy LLC | 1 MW | — | — | 2025 | Operating | ISO |
| Boundary Line Solar, LLC | Maine | Solar | Dimension Energy LLC | 1 MW | — | — | 2025 | Operating | ISO |
| SP-339 Mechanic Falls | Maine | Solar | Madison Energy Investments LLC | 1 MW | — | — | 2024 | Operating | ISO |
| Roosevelt Trail | Maine | Solar | Madison Energy Investments LLC | 1 MW | — | — | 2024 | Operating | ISO |
| Cenergy - Richards (CSG) | Maine | Solar | Luminace Sunbeam Development Holdings, LLC | 1 MW | 2 | 20.3% | 2023 | Operating | ISO |
| Cenergy - Kiger | Maine | Solar | Luminace Sunbeam Development Holdings, LLC | 1 MW | 2 | 22.4% | 2023 | Operating | ISO |
| ME Augusta 13 York Farm Rd Solar | Maine | Solar | SOL ME Augusta 13 York Farm, LLC | 1 MW | 1 | 16.3% | 2024 | Operating | ISO |