Power plants in Polk County, Oregon

10 operating power plants in Polk County, Oregon, with 26 MW of nameplate capacity, largest first. From EIA-860M, August 2026.

Plants

10

Nameplate capacity

26 MW

Net generation, 2025

25.8 GWh

9 of 10 plants reported

Largest power plants in Polk County

#PlantMW2025 net generation, GWhGWh, 2025Capacity factorOperator
1Lincoln Solar LLC (OR)Solar3.5––KSI III Consolidated, LLC
2Wallace Solar LLC (CSG)Solar3.04.517.1%SolRiver Capital LLC
3Waterford Solar, LLC CSGSolar2.61.4–Waterford Solar LLC
4Cosper Creek Solar (CSG)Solar2.53.817.4%Cosper Creek Solar, LLC
5Zena SolarSolar2.54.520.5%Zena Solar LLC
6Apricus Solar LLCSolar2.50.0–KSI III Consolidated, LLC
7Steel Bridge Solar, LLCSolar2.33.517.5%Steel Bridge Solar. LLC
8Orchard KnobSolar2.31.0–Orchard Knob Solar LLC
9Valley Creek SolarSolar2.23.417.7%SunStrong Management
10Grand Ronde SolarSolar2.23.618.9%SunStrong Management

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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