Power Plants in Cowlitz County, Washington

Cowlitz County, Washington has 6 power plants totaling 768 MW of nameplate capacity. Browse every plant below with fuel type, operator, and capacity.

Plants6operating sites
Capacity768 MWnameplate
Generation3.4M MWhannual
CO₂936.2kmetric tons/year
Hydroelectric 45%Natural Gas 42%Biomass 14%

Plant locations

All plants in this county

PlantCityFuelCapacityOperator
Mint Farm Generating StationLongviewNatural Gas319 MWPuget Sound Energy Inc
MerwinArielHydroelectric136 MWPacificorp
YaleAmboyHydroelectric134 MWPacificorp
Swift 2CougarHydroelectric72.0 MWPacificorp
Nippon Dynawave Packaging Longview WaLongviewBiomass62.4 MWNippon Dynawave Packaging Co.
Longview FibreLongviewBiomass45.0 MWLongview Fibre Co

About power generation in Cowlitz County

Cowlitz County, Washington has 6 power plants totaling 768 MW of nameplate capacity. Hydroelectric is the dominant fuel source at 45% of installed capacity, followed by Natural Gas (42%) and Biomass (14%). The largest facility is Mint Farm Generating Station at 319 MW. Data comes from EIA Form 860, EIA Form 923, and EPA eGRID federal releases.

To find plants closer to a specific address in Cowlitz County, use the address lookup — it shows every plant within a chosen radius along with distance, fuel type, and emissions.