Diablo P-553

General information

Waterway  Skagit River
Current status  Active 
Type of facility Conventional Hydro
Type of permit FERC License

FERC information

FERC docket # P-553
Permit issued 5/11/1995
Permit expires 4/26/2025

Ownership and operation

Owner Seattle City of
Owner type Publicly Owned Utility
Year first online (conventional hydro) 1936
Transmission or distribution system owner City of Seattle - (WA)

Power and generating capacity

Number of units 4
Total capacity from hydraulic turbine-generator units within each plant 182.4 mW
Average annual net hydropower generation 782,852.4 mWH