Power plants in Stephenson County, Illinois

30 operating power plants in Stephenson County, Illinois, with 270 MW of nameplate capacity, largest first. From EIA-860M, August 2026.

Plants

Nameplate capacity

270 MW

Net generation, 2025

567 GWh

28 of 30 plants reported

Largest

EcoGrove Wind LLC

101 MW

Largest power plants in Stephenson County

#	Plant	MW	2025 net generation, GWhGWh, 2025	Capacity factor	Operator
1	EcoGrove Wind LLCWind	101	251	28.5%	Acciona Wind Energy USA LLC
2	High Point Solar LLCSolar	100	193	22.1%	Acciona Energy USA Global, LLC
3	Adkins Energy LLCNatural gas	6.8	38.7	65.1%	Adkins Energy LLC
4	DakotaSolar	5.0	7.0	15.9%	SunStrong Management, LLC
5	NL IL - McConnell RoadSolar	5.0	0.2	–	Standard Solar
6	IL - Ameresco - Freeport SouthSolar	3.9	–	–	Freeport Solar South, LLC
7	IL - Ameresco - Freeport NorthSolar	2.7	–	–	Freeport Solar North, LLC
8	LenaSolar	2.0	3.8	21.9%	Lena Solar 1 LLC
9	2662 Freeport Solar 1 CSGSolar	2.0	2.9	16.8%	2662 Freeport Solar 1, LLC
10	Kent School Road Solar 1Solar	2.0	3.2	18.5%	Kent School Road Solar 1
11	Cedarville RoadSolar	2.0	3.5	20.2%	SRC P9 - Lena Solar, LLC
12	IL17021 Brush Creek I CSGSolar	2.0	4.1	23.1%	SPG IL Brush Creek I Solar LLC
13	Dodds (CSG)Solar	2.0	4.5	25.9%	Dodds Solar, LLC
14	Olmstead II CSGSolar	2.0	4.5	25.9%	Olmstead Solar II, LLC
15	Pretzel CSGSolar	2.0	4.2	23.9%	Pretzel Solar, LLC
16	Gala (CSG)Solar	2.0	3.1	17.8%	Gala Solar, LLC
17	SV CSG Baileyville 1 LLCSolar	2.0	4.5	25.9%	SV CSG Baileyville 1 LLC
18	SV CSG Baileyville 2 LLCSolar	2.0	4.4	24.8%	SV CSG Baileyville 2 LLC
19	N Baker Road 2Solar	2.0	3.1	–	Greenbacker Renewable Energy Corporation
20	N Baker RoadSolar	2.0	3.3	–	Greenbacker Renewable Energy Corporation
21	Cedarville (IL)Solar	2.0	3.9	22.4%	Generate Capital
22	Dakota Solar 1, LLCSolar	2.0	4.5	25.6%	Generate Capital
23	Freeport 18th SolarSolar	2.0	0.8	–	Generate Capital
24	Trinity FreeportSolar	2.0	4.3	24.3%	Generate Capital
25	SV CSG German Valley 1 LLCSolar	2.0	2.3	–	SunVest Solar LLC
26	DG Harlem SolarSolar	2.0	3.9	22.5%	DG Harlem, LLC
27	Harmony Solar ProjectSolar	2.0	4.0	22.6%	SoCore Energy LLC
28	Unity Solar Project (IL)Solar	2.0	3.9	22.5%	SoCore Energy LLC
29	IL-Forefront ComEd-Lena 1Solar	2.0	0.0	–	IL Solar Lena Project1, LLC
30	IL-Forefront ComEd-Lena 2Solar	2.0	0.0	–	IL Solar Lena Project2, 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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