LaGrande

Power plant · Hydro

Key facts

Power plant · Hydro Operating

Commissioned: 1912
Net generation, 2025: 291,231 MWh
Grid: 110 kV to City of Tacoma - (WA) (TPWR)
Location: Pierce County, Washington
Operated by: City of Tacoma - (WA)SourceEIA-860M Preliminary Monthly Electric Generator Inventory

Net generation MWh by year, 2001 to 2025

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All 5 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory

Attributes
Attribute	Value
Grid	Nerc region WECC Report year 2025 Grid voltage kv 110 Transmission owner City of Tacoma - (WA) Balancing authority code TPWR Balancing authority name City of Tacoma, Department of Public Utilities, Light Division
Fuel burned (MMBtu), 2025	993,679
Capacity factor, 2025	0.519
Net generation (MWh), 2025	291,231
Balancing authority code	TPWR

3 sources

Sources

EIA-860MOpen license · retrieved Nov 4, 2026
EIAOpen license · retrieved Nov 1, 2026Source: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)
EIA-860M Preliminary Monthly Electric Generator Inventory