List of power stations in Maine

Sources of Maine utility-scale electricity generation:
full-year 2023 ^[1]

  Natural Gas (29.4%)

  Hydroelectric (26.9%)

  Wind (21.6%)

  Biomass (13.7%)

  Solar (5.1%)

  Petroleum (0.6%)

  Coal (0.4%)

  Other (2.5%)

This is a list of electricity-generating power stations in the U.S. state of Maine, sorted by type and name. In 2022, Maine had a total summer capacity of 5,126 MW through all of its power plants, and a net generation of 12,763 GWh. ^[2] In 2023, The electrical energy generation mix was 29.4% natural gas, 26.9% hydroelectric, 21.6% wind, 13.7% biomass, 5.1% solar, 0.6% petroleum, 0.4% coal, and 2.5% other. Small-scale solar, which includes customer-owned photovoltaic panels, delivered an additional net 607 GWh of energy to the state's electrical grid in 2023. This compares to the 582 GWh generated by Maine's utility-scale photovoltaic plants. ^[1]

During 2021, renewable sources generated 74% of all electrical energy from Maine, making it one of the top-five U.S. states. Maine's share of wind generation is the largest among New England states, and its share of biomass generation from the wood industry and municipal waste sources is the largest in the United States. Maine's electricity generation has not met the in-state demand in recent years, and about one-quarter of its electricity consumption was imported from Canada. ^[3]

Nuclear power stations

The Maine Yankee Nuclear Power Plant generated 860 MW of base load electricity during years 1972–1996. Decommissioning was completed in 2005. ^{[4] [5]} Maine had no utility-scale plants that used fissile material as a fuel in 2019. ^[1]

Fossil-fuel power stations

Data from the U.S. Energy Information Administration serves as a general reference. ^[6]

Coal-fired

The Mason Station in Wiscasset was a coal-fired plant built in 1941-42, with the capability of producing 153,500 kilowatts giving it the status, at that time, of Maine’s second largest electric generating plant, W.D. Wyman Station in Yarmouth was the largest with a capacity of 225,000 kilowatts.

Central Maine Power and Wiscasset were good neighbors for many years. The Mason Station was many things to the community. It brought economic growth to the town and livelihood to its employees. It produced electricity at a time when it was needed most, and, being the largest taxpayer in town, it helped keep the mil rate low for other taxpayers.

For several years in the 1970s, Maine Salmon Farms raised Pacific Coho salmon in the warm water outflow from Mason steam station in Wiscasset. The warm water prevented icing and allowed the young fish to grow even in the cold winter months.

The Rumford Cogeneration and S D Warren Plants previously burned coal as primary fuel, and continued to burn it as secondary fuel in 2019 (see Biomass). ^[7] Maine had no operating utility-scale plants that used coal as a primary fuel in 2019. ^[1]

Natural gas-fired

Name	Location	Coordinates	Capacity (MW)	Generation Type	Year Opened	Refs
Androscoggin Energy Center	Franklin County	44°30′23″N70°14′32″W / 44.5063°N 70.2423°W / 44.5063; -70.2423 (Adroscoggin EC)	163.5	Simple Cycle (x3)	1999/2000	[8]
Bucksport Generation Plant	Hancock County	44°34′26″N68°48′17″W / 44.5738°N 68.8046°W / 44.5738; -68.8046 (Bucksport Plant)	186.8	Simple Cycle	2001	[9]
Maine Independence Station	Penobscot County	44°49′27″N68°42′34″W / 44.8242°N 68.7094°W / 44.8242; -68.7094 (Independence Station)	550.2	2x1 Combined Cycle	2000	[10]
Mead Rumford Cogen	Oxford County	44°32′47″N70°32′39″W / 44.5465°N 70.5443°W / 44.5465; -70.5443 (Independence Station)	12.5	Steam Turbine	1954	[11]
Rumford Power Plant	Oxford County	44°31′49″N70°31′19″W / 44.5303°N 70.5219°W / 44.5303; -70.5219 (Rumford Plant)	262.9	1x1 Combined Cycle	2000	[12]
Westbrook Energy Center	Cumberland County	43°39′27″N70°22′30″W / 43.6575°N 70.3750°W / 43.6575; -70.3750 (Westbrook EC)	563.9	2x1 Combined Cycle	2001	[13] [14]

Petroleum-fired

Maine's petroleum-fired plants were operated as peaker plants in 2019.

Name	Location	Coordinates	Capacity (MW)	Generation Type	Year Opened	Ref
Caribou Generation Station	Aroostook County	46°50′53″N68°00′09″W / 46.8480°N 68.0026°W / 46.8480; -68.0026 (Caribou Station)	26.6	Reciprocating Engine (x4) Steam Turbine (x2)	1948/1951 (7.6MW) 1950/1955 (19MW)	[15]
Cape Gas Turbine	Cumberland County	43°38′37″N70°15′16″W / 43.6436°N 70.2544°W / 43.6436; -70.2544 (Cape Turbine)	35.0	Simple Cycle (x2)	1970	[16]
Flos Inn Diesel	Aroostook County	43°38′37″N70°15′16″W / 43.6436°N 70.2544°W / 43.6436; -70.2544 (Cape Turbine)	6.0	Reciprocating Engine (x3)	1959	[17]
Wyman Power Station	Cumberland County	43°45′03″N70°09′24″W / 43.7508°N 70.1567°W / 43.7508; -70.1567 (Wyman Station)	846 [A]	Steam Turbine (x4)	1957-1978	[18]

^A 16.2MW battery storage capacity added at Wyman Station in 2016. ^[19]

Renewable Power Stations

Data from the U.S. Energy Information Administration serves as a general reference. ^[6]

Biomass and Municipal Waste

Name	Location	Coordinates	Capacity (MW)	Fuel	Generation Type	Year Opened	Refs
Androscoggin Mill	Franklin County	44°30′23″N70°14′22″W / 44.5063°N 70.2395°W / 44.5063; -70.2395 (Androscoggin Mill)	80	wood/wood waste	Steam Turbine (x3)	1964-1974	[20]
Athens Energy Plant	Somerset County	44°56′44″N69°39′39″W / 44.9455°N 69.6607°W / 44.9455; -69.6607 (Athens Energy)	8.5	wood/wood waste	Steam Turbine	2016	[21]
Crossroads Landfill Gas	Somerset County	44°42′05″N69°49′55″W / 44.7014°N 69.8319°W / 44.7014; -69.8319 (WM Crossroads Landfill)	3.2	landfill gas	Reciprocating Engine (x2)	2009	[22]
Jonesboro Energy Center (Indeck)	Washington County	44°40′41″N67°32′52″W / 44.6781°N 67.5477°W / 44.6781; -67.5477 (Indeck Jonesboro)	27.5	wood/wood waste	Steam Turbine	1987	[23] [24]
Livermore Falls Plant	Penobscot County	44°25′54″N70°09′43″W / 44.4317°N 70.1619°W / 44.4317; -70.1619 (Livermore Falls)	39.6	wood/wood waste	Steam Turbine	1992	[25] [26]
MMWAC Resource Recovery Facility	Androscoggin County	44°04′04″N70°15′39″W / 44.0678°N 70.2608°W / 44.0678; -70.2608 (MMWAC Recovery)	5.0	municipal solid waste (biogenic & non-biogenic) natural gas	Steam Turbine	1992	[27] [28] [29]
Old Town Waste Plant	Penobscot County	44°55′05″N68°38′08″W / 44.9181°N 68.6355°W / 44.9181; -68.6355 (Old Town)	28.5	wood/wood waste	Steam Turbine (x2)	1965/1987	[30] [31]
Penobscot Energy Recovery Facility	Penobscot County	44°44′18″N68°49′33″W / 44.7383°N 68.8258°W / 44.7383; -68.8258 (Penobscot Recovery)	25.3	municipal solid waste (biogenic & non-biogenic) fuel oil	Steam Turbine	1987	[32] [33] [34]
Pine Tree Landfill Gas	Penobscot County	44°46′07″N68°51′42″W / 44.7686°N 68.8617°W / 44.7686; -68.8617 (Pine Tree Landfill)	3.3	landfill gas	Reciprocating Engine (x3)	2008	[35]
Regional Waste Systems Facility	Cumberland County	43°39′20″N70°20′05″W / 43.6556°N 70.3347°W / 43.6556; -70.3347 (Regional Waste Facility)	13.3	municipal solid waste (biogenic & non-biogenic) natural gas	Steam Turbine	1988	[36] [37] [38]
Rumford Cogeneration Plant	Oxford County	44°33′05″N70°32′29″W / 44.5513°N 70.5414°W / 44.5513; -70.5414 (Rumford Cogen)	102.6	wood waste coal tire-derived fuel	Steam Turbine	1990	[39] [40]
S. D. Warren Westbrook Plant	Cumberland County	43°41′06″N70°21′12″W / 43.6849°N 70.3532°W / 43.6849; -70.3532 (S D Warren)	62.5	wood waste coal	Steam Turbine (x2)	1982/1985	[41]
Somerset Waste Plant	Somerset County	44°42′13″N69°38′51″W / 44.7035°N 69.6474°W / 44.7035; -69.6474 (Somerset)	107.1	wood waste natural gas tire-derived fuel	Steam Turbine (x2)	1976/1990	[42] [43]
Stratton Plant	Franklin County	45°08′26″N70°25′32″W / 45.1406°N 70.4256°W / 45.1406; -70.4256 (Stratton)	45.7	wood/wood waste	Steam Turbine	1989	[44] [45]
Twin Rivers Paper Plant	Aroostook County	47°21′29″N68°19′51″W / 47.3581°N 68.3309°W / 47.3581; -68.3309 (Twin Rivers Paper)	22.0	wood/industrial waste	Steam Turbine	1987	[46]
West Enfield Energy Center (Indeck)	Penobscot County	45°15′13″N68°37′40″W / 45.2537°N 68.6279°W / 45.2537; -68.6279 (Indeck West Enfield)	27.5	wood/wood waste	Steam Turbine	1987	[47] [48]
Woodland Pulp Waste Plant	Washington County	45°09′19″N67°24′04″W / 45.1554°N 67.4012°W / 45.1554; -67.4012 (Woodland Pulp)	49.8	wood/wood waste	Steam Turbine (x2)	1966/1970 [A]	[49]

^A In operation since 1906, original units retired.

Hydroelectric

See also: List of dams and reservoirs in Maine

Name	Location	Coordinates	Capacity (MW)	Number of Turbines	Year Opened	Refs
Anson-Abenaki Hydros Plant	Somerset County	44°47′51″N69°53′12″W / 44.7975°N 69.8867°W / 44.7975; -69.8867 (Anson-Abenaki Hydro)	29.0	13	1950-1994	[50] [51]
Aziscohos Hydro Project	Oxford County	44°56′38″N70°59′51″W / 44.9439°N 70.9975°W / 44.9439; -70.9975 (Aziscohos Hydro)	6.7	1	1988	[52]
Bonny Eagle Hydropower Plant	York County	43°41′16″N70°36′42″W / 43.6877°N 70.6116°W / 43.6877; -70.6116 (Bonny Eagle Hydro)	7.2	6	1910	[53]
Brunswick Hydro Plant	Cumberland County	43°55′14″N69°58′04″W / 43.9205°N 69.9678°W / 43.9205; -69.9678 (Brunswick Hydro)	19.6	3	1982/1983	[54]
Caribou Generation Station	Aroostook County	46°50′53″N68°00′09″W / 46.8480°N 68.0026°W / 46.8480; -68.0026 (Caribou Station)	0.8	2	1926	[15]
Charles E. Monty Hydro Plant	Androscoggin County	44°05′58″N70°13′15″W / 44.0995°N 70.2209°W / 44.0995; -70.2209 (Charles E Monty Hydro)	28.4	2	1990	[55]
Deer Rips	Androscoggin County	44°08′05″N70°12′13″W / 44.1346°N 70.2037°W / 44.1346; -70.2037 (Deer Rips Hydro)	6.5	7	1903-1924	[56]
Ellsworth Hydro Station	Hancock County	44°32′39″N68°25′50″W / 44.5442°N 68.4306°W / 44.5442; -68.4306 (Ellsworth Hydro)	8.9	4	1924-1938	[57]
Great Lakes Hydro America (West Branch Penobscot Hydro)	Penobscot County	45°38′50″N68°42′16″W / 45.6472°N 68.7044°W / 45.6472; -68.7044 (Great Lakes Hydro)	135.7	31	1917-1988	[58] [59]
Gulf Island Hydro Plant	Androscoggin County	44°09′10″N70°12′34″W / 44.1529°N 70.2094°W / 44.1529; -70.2094 (Gulf Island Hydro)	19.2	3	1926	[60]
Harris Hydro Plant	Somerset County	45°27′33″N69°51′57″W / 45.4592°N 69.8658°W / 45.4592; -69.8658 (Harris Hydro)	76.4	4	1954-1955	[61]
Hiram Hydropower Plant	Cumberland County	43°51′09″N70°47′49″W / 43.8525°N 70.7969°W / 43.8525; -70.7969 (Hiram Hydro)	10.5	2	1917/1985	[62]
Hydro Kennebec Project	Kennebec County	44°33′47″N69°37′09″W / 44.5630°N 69.6192°W / 44.5630; -69.6192 (Hydro Kennebec)	15.0	2	1989	[63]
International Paper Hydro Livermore/ Riley/ Jay	Androscoggin County Franklin County	44°28′14″N70°11′14″W / 44.4705°N 70.1873°W / 44.4705; -70.1873 (IP Livermore) 44°30′12″N70°14′57″W / 44.5034°N 70.2491°W / 44.5034; -70.2491 (IP Riley) 44°30′13″N70°13′16″W / 44.5037°N 70.2210°W / 44.5037; -70.2210 (IP Jay)	18.9	21	1910-1981	[64] [65]
Lockwood Hydro Facility	Kennebec County	44°32′48″N69°37′45″W / 44.5467°N 69.6292°W / 44.5467; -69.6292 (Lockwood Hydro)	7.2	7	1985/1988	[64] [65] [66]
Milford Hydro Station	Penobscot County	44°56′32″N68°38′42″W / 44.9421°N 68.6450°W / 44.9421; -68.6450 (Milford Hydro)	7.8	6	1941-1956 [A] / 2011	[67] [68]
Otis Hydropower Plant	Franklin County	44°28′40″N70°12′03″W / 44.4778°N 70.2008°W / 44.4778; -70.2008 (Otis Hydro)	10.2	2	1985	[64] [65] [69]
Pejepscot Hydroelectric Project	Sagadahoc County	43°57′27″N70°01′27″W / 43.9574°N 70.0242°W / 43.9574; -70.0242 (Pejepscot Hydro)	13.5	4	1987	[70]
Rumford Falls Hydro Facility	Oxford County	44°32′20″N70°32′42″W / 44.5390°N 70.5450°W / 44.5390; -70.5450 (Rumford Falls Hydro)	39.2	6	1918-1954	[71] [72]
S D Warren Hydropower Plant	Cumberland County	43°41′06″N70°21′12″W / 43.6849°N 70.3532°W / 43.6849; -70.3532 (S D Warren Hydro)	7.2	14	1903/1913/ 1940	[73]
Shawmut Hydropower Plant	Somerset County	44°37′46″N69°35′01″W / 44.6295°N 69.5835°W / 44.6295; -69.5835 (Shawmut Hydro)	9.2	8	1913/192/ 1982	[74]
Skelton Hydropower Plant	York County	43°34′15″N70°33′30″W / 43.5708°N 70.5583°W / 43.5708; -70.5583 (Skelton Hydro)	16.8	2	1948	[75]
West Enfield Hydro Plant	Penobscot County	45°14′59″N68°38′54″W / 45.2497°N 68.6483°W / 45.2497; -68.6483 (West Enfield Hydro)	13.0	2	1988	[76] [77]
Weston Hydro Plant	Somerset County	44°45′50″N69°43′06″W / 44.7639°N 69.7183°W / 44.7639; -69.7183 (Weston Hydro)	12.0	4	1921/1923	[78]
Williams Hydro Plant	Somerset County	44°57′32″N69°52′13″W / 44.9589°N 69.8703°W / 44.9589; -69.8703 (Williams Hydro)	13.0	2	1939/1950	[79]
Woodland Pulp Hydro Plant	Washington County	45°09′19″N67°24′04″W / 45.1554°N 67.4012°W / 45.1554; -67.4012 (Woodland Pulp Hydro)	18.5	10	1906/1912/ 1929/1970 [B]	[6]
Worumbo Hydro Station	Androscoggin County	43°59′41″N70°03′43″W / 43.9947°N 70.0619°W / 43.9947; -70.0619 (Worumbo Hydro)	19.4	2	1989	[64] [80] [81]
Wyman Hydro Plant	Somerset County	45°04′13″N69°54′23″W / 45.0703°N 69.9064°W / 45.0703; -69.9064 (Wyman Hydro)	72.0	3	1930/1931/ 1940	[82] [83]

^A In operation since 1906, original units retired.
^B Retirement pending ^[84]
See also: Natural Resources Council of Maine Hydro Facilities ^[85]

Wind

See also: Wind power in Maine

Name	Location	Coordinates	Capacity (MW)	Number of Turbines	Year Opened	Turbine Mfg Spec	Refs
Beaver Ridge Wind Project	Waldo County	44°29′48″N69°21′00″W / 44.4967°N 69.3500°W / 44.4967; -69.3500 (Beaver Ridge Wind)	4.5	3	2008	GE 1.5MW	[86] [87]
Bingham Wind Project	Piscataquis County	45°06′12″N69°45′43″W / 45.1033°N 69.7619°W / 45.1033; -69.7619 (Bingham Wind)	186	56	2016	Vestas 3.3MW	[88] [89]
Bull Hill Wind Project	Hancock County	44°43′23″N68°14′33″W / 44.7230°N 68.2425°W / 44.7230; -68.2425 (Bull Hill Wind)	34.2	19	2012	Vestas 1.8MW	[90]
Canton Mountain Wind Project	Oxford County	44°30′53″N70°18′11″W / 44.5147°N 70.3031°W / 44.5147; -70.3031 (Canton Mountain Wind)	22.8	8	2017	GE 2.85MW	[91] [92]
Fox Islands Wind Project	Knox County	44°05′39″N68°51′57″W / 44.0942°N 68.8658°W / 44.0942; -68.8658 (Fox Islands Wind)	4.5	3	2009	GE 1.5MW	[93] [94]
Hancock Wind Project	Hancock County	44°45′39″N68°08′49″W / 44.7608°N 68.1469°W / 44.7608; -68.1469 (Hancock Wind)	51	17	2016	Vestas 3.3MW	[95] [96]
Kibby Wind Facility (I&II)	Franklin County	45°23′07″N70°31′33″W / 45.3853°N 70.5258°W / 45.3853; -70.5258 (Kibby Wind)	132	44	2009/2010	Vestas 3.0MW	[97] [98]
Mars Hill Wind Farm	Aroostook County	46°32′39″N67°48′40″W / 46.5442°N 67.8111°W / 46.5442; -67.8111 (Mars Wind)	42	28	2006	GE 1.5MW	[99]
Oakfield Wind Project	Aroostook County	46°03′29″N68°08′50″W / 46.0581°N 68.1472°W / 46.0581; -68.1472 (Oakfield Wind)	148	48	2015	Vestas 3.0MW	[100] [101] [102]
Passadumkeag Wind Park	Penobscot County	45°04′12″N68°12′36″W / 45.0700°N 68.2100°W / 45.0700; -68.2100 (Passadumkeag Wind)	42.9	13	2016	Vestas 3.3MW	[103] [104]
Pisgah Mountain Wind	Penobscot County	44°46′38″N68°31′24″W / 44.7773°N 68.5234°W / 44.7773; -68.5234 (Pisgah Mountain Wind)	9.1	5	2016	Vestas 1.8MW	[105]
Record Hill Wind Farm	Oxford County	44°38′01″N70°37′40″W / 44.6336°N 70.6277°W / 44.6336; -70.6277 (Record Hill Wind)	50.6	22	2011	Siemens 2.3MW	[106] [107]
Rollins Wind Project	Penobscot County	45°20′46″N68°22′49″W / 45.3460°N 68.3802°W / 45.3460; -68.3802 (Rollins Wind)	60	40	2011	GE 1.5MW	[108] [109]
Saddleback Ridge Wind Project (I&II)	Franklin County	44°35′36″N70°22′52″W / 44.5933°N 70.3811°W / 44.5933; -70.3811 (Saddleback Ridge Wind)	34.2	12	2014/2015	GE 2.85MW	[110] [111]
Spruce Mountain Wind Project	Oxford County	44°24′56″N70°33′35″W / 44.4156°N 70.5598°W / 44.4156; -70.5598 (Spruce Mountain Wind)	20	10	2011	Gamesa 2.0MW	[112] [113]
Stetson Wind Farm I & II	Washington County	45°28′56″N67°59′40″W / 45.4822°N 67.9944°W / 45.4822; -67.9944 (Stetson Wind)	82.5	55	2009/2010	GE 1.5MW	[114] [115] [116]

Solar

See also: Solar power in Maine

Name	Location	Coordinates	Capacity (MWAC)	Year Opened	Refs
Bowdoin College Solar	Cumberland County	43°53′46″N69°57′00″W / 43.89611°N 69.95000°W / 43.89611; -69.95000 (Bowdoin Array)	1.2 [A]	2014	[117] [118]
Farmington Solar	Franklin County		76.5	2021	[119]
IGS Madison Electric Works	Sommerset County	44°48′14″N69°50′17″W / 44.8040°N 69.8380°W / 44.8040; -69.8380 (IGS Madison)	4.1	2017	[120]
NRG Solar Mule (Colby College Solar Array)	Kennebec County	44°33′28″N69°40′17″W / 44.5577°N 69.6714°W / 44.5577; -69.6714 (Solar Mule)	1.5	2017	[121]
Sanford Airport Solar Project	York County	43°23′16″N70°42′15″W / 43.38778°N 70.70417°W / 43.38778; -70.70417 (Sanford Project)	50.0	2020/2021	[122]

^A 0.6MW ground array + 0.6MW rooftop solar

Storage power stations

Data from the U.S. Energy Information Administration serves as a general reference. ^[6]

Battery storage

Name	Location	Coordinates	Discharge Capacity (MW)	Year Opened	Refs
William F. Wyman Hybrid	Cumberland County	43°45′03″N70°09′24″W / 43.7508°N 70.1567°W / 43.7508; -70.1567 (Wyman Station)	16.2	2016	[19]

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