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Preliminary 2025 facility recordOperating

Rockport, WA · EIA plant 6432

Diablo

Diablo is a hydro power facility in Rockport, WA, with 182 MW of operating capacity.

Open on mapView WA profileOpen EIA source
Operating capacity182 MW4 operating generators
Proposed capacity0 MW0 proposed generators
UtilityCity of Seattle - (WA)EIA-reported operator
Balancing authoritySCLSeattle City Light

Capacity profile

Fuel and technology

Nameplate capacity
Operating
Hydro182 MW
ProposedNo proposed capacity reported
Reported technologiesConventional Hydroelectric

Nearby in WA

Related facilities

WA · 3.2 miRoss450 MW →WA · 3.7 miGorge207 MW →WA · 5.6 miNewhalem2 MW →WA · 25.9 miUpper Baker105 MW →

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