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Preliminary 2025 facility recordOperating

Mattawa, WA · EIA plant 3887

Priest Rapids

Priest Rapids is a hydro power facility in Mattawa, WA, with 950 MW of operating capacity.

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Operating capacity950 MW10 operating generators
Proposed capacity0 MW0 proposed generators
UtilityPUD No 2 of Grant County - (WA)EIA-reported operator
Balancing authorityBPATBonneville Power Administration

Capacity profile

Fuel and technology

Nameplate capacity
Operating
Hydro950 MW
ProposedNo proposed capacity reported
Reported technologiesConventional Hydroelectric

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Source quality

Preliminary facility data

This page uses the EIA-860 2025 Early Release. EIA identifies the release as preliminary, so it should not be used for official state or national aggregation. Capacity is nameplate capacity, not real-time output or annual generation.

Read methodologyEIA-860 source