Power plants in Aroostook County, Maine

26 operating power plants in Aroostook County, Maine, with 292 MW of nameplate capacity, largest first. From EIA-860M, August 2026.

Plants

Nameplate capacity

292 MW

Net generation, 2025

681 GWh

25 of 26 plants reported

Largest

Oakfield Wind Project

148 MW

Largest power plants in Aroostook County

#	Plant	MW	2025 net generation, GWhGWh, 2025	Capacity factor	Operator
1	Oakfield Wind ProjectWind	148	351	27.0%	Onward Energy
2	Mars Hill Wind Farm ProjectWind	42	128	34.9%	Evergreen Wind, LLC
3	Twin Rivers Paper Co LLCOther fuels	22	98.7	51.2%	Twin Rivers Paper Co LLC
4	AES Daigle Solar, LLCSolar	5.0	6.4	14.6%	AES Clean Energy
5	Fort FairfieldSolar	5.0	8.1	18.4%	Standard Solar
6	BNRG Masardis (CSG)Solar	5.0	4.5	10.2%	Nautilus Solar Solutions
7	Caribou SolarSolar	5.0	6.2	14.1%	SoCore Energy LLC
8	CaribouSolar	4.1	6.2	17.2%	Altus Power America Management, LLC
9	LoringSolar	4.1	8.1	22.4%	Altus Power America Management, LLC
10	AES Pelletier Solar, LLCSolar	4.0	4.8	13.7%	AES Clean Energy
11	Madawaska SolarSolar	4.0	3.9	11.3%	SoCore Energy LLC
12	Limestone - (ME)Solar	4.0	–	–	Nautilus Solar Solutions
13	Limestone CSG 1 LLCSolar	3.8	5.9	17.7%	Limestone CSG 1 LLC
14	Easton CSG 1 LLCSolar	3.3	5.6	19.2%	Easton CSG 1 LLC
15	Valley Sun SolarSolar	3.1	3.1	11.5%	Valley Sun Solar LLC
16	Mechanic Street (CSG)Solar	3.0	4.2	15.9%	Nautilus Solar Solutions
17	Missile Street (CSG)Solar	3.0	4.3	16.5%	Nautilus Solar Solutions
18	Sheridan Road Solar FarmSolar	3.0	4.2	16.1%	Addicus Advisors
19	Limestone CSG 2 LLCSolar	2.9	4.8	19.0%	Limestone CSG 2 LLC
20	ME Fort Fairfield Solar PlantSolar	2.8	3.8	15.4%	ME Fort Fairfield LLC
21	Mars HillSolar	2.6	3.8	16.7%	Greenbacker Renewable Energy Corporation
22	ME Novel Lighthouse - Huggard Ave SolarSolar	2.5	3.9	17.8%	Luminace Sunbeam Development Holdings, LLC
23	French Road SolarSolar	2.5	3.1	14.3%	SoCore Energy LLC
24	Skyway Avenue Solar FarmSolar	2.5	2.7	12.3%	REA Investments, LLC
25	ME - Novel (Lighthouse Ph I) Mars HillSolar	2.5	4.1	18.6%	Mars Hill Road Solar Farm, LLC
26	Houlton Road Solar Farm (CSG)Solar	2.0	2.3	12.9%	REA Investments, LLC

MW is the nameplate capacity of operating generators and batteries. Source: EIA-860M August 2026, published 2026-09-24, and EIA-923 2025. Page updated 2026-10-04. Data sources

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Other counties in Maine

Somerset County37 plants · 498 MW Penobscot County35 plants · 999 MW Kennebec County33 plants · 136 MW Androscoggin County23 plants · 194 MW Cumberland County22 plants · 1,736 MW Oxford County20 plants · 590 MW York County17 plants · 158 MW Franklin County14 plants · 336 MW Hancock County12 plants · 388 MW

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