King County, Washington — Interconnection Projects

The interXdata warehouse tracks 50 interconnection projects in King, Washington, representing 963 MW of requested capacity.

50Total projects
2Active
44Operational
4Withdrawn
963 MWRequested capacity

Technology mix

TechnologyProjectsRequested capacity
Gas21608 MW
Other28204 MW
Battery1150 MW

Projects

ProjectQueue IDTechnologyCapacityStatusLocation
Cedar Hills Energy LLCG55Gas300.0 MWwithdrawnKing, Washington
Enron Power MarketingG89Gas300.0 MWwithdrawnKing, Washington
WA Queue Project G1014 — Battery in King, WashingtonG1014Battery150.0 MWactiveKing, Washington
Grand Ridge SubstationL0373Other24.8 MWactiveKing, Washington
Snoqualmie 27867_7Other24.3 MWoperationalKing, Washington
Bridgeport I5 Commercial/Industrial ProjectL0531Other20.7 MWoperationalKing, Washington
South Fork Tolt622_1Other16.8 MWoperationalKing, Washington
Cedar Falls (WA)6430_6Other15.0 MWoperationalKing, Washington
Cedar Falls (WA)6430_5Other15.0 MWoperationalKing, Washington
Snoqualmie 27867_6AOther14.4 MWoperationalKing, Washington
Twin Falls Hydro50827_UNI1Other12.0 MWoperationalKing, Washington
Twin Falls Hydro50827_UNI2Other12.0 MWoperationalKing, Washington
Snoqualmie3860_5AOther6.8 MWoperationalKing, Washington
Calligan Creek Hydroelectric Project60418_CC6MWOther6.0 MWoperationalKing, Washington
Hancock Creek Hydroelectric Project60517_HY1Other6.0 MWoperationalKing, Washington
Weeks Falls54387_GEN1Other4.3 MWoperationalKing, Washington
Black Creek54860_GEN1Other3.7 MWoperationalKing, Washington
University of Washington Power Plant54809_TG3Gas3.0 MWoperationalKing, Washington
West Point Treatment Plant50329_4Other2.3 MWoperationalKing, Washington
West Point Treatment Plant50329_5Other2.3 MWoperationalKing, Washington
University of Washington Power Plant54809_DG7Other2.0 MWoperationalKing, Washington
University of Washington Power Plant54809_DG5Other2.0 MWoperationalKing, Washington
University of Washington Power Plant54809_DG3Other2.0 MWoperationalKing, Washington
University of Washington Power Plant54809_DG6Other2.0 MWoperationalKing, Washington
University of Washington Power Plant54809_DRUPSOther2.0 MWoperationalKing, Washington
University of Washington Power Plant54809_DG4Other2.0 MWoperationalKing, Washington
Snoqualmie3860_2Other1.5 MWoperationalKing, Washington
Snoqualmie3860_1Other1.5 MWoperationalKing, Washington
Snoqualmie3860_3Other1.5 MWoperationalKing, Washington
Snoqualmie3860_4Other1.5 MWoperationalKing, Washington
Cedar Hills57298_18Gas0.3 MWoperationalKing, Washington
Cedar Hills57298_16Gas0.3 MWoperationalKing, Washington
Cedar Hills57298_5Gas0.3 MWoperationalKing, Washington
Cedar Hills57298_7Gas0.3 MWoperationalKing, Washington
Cedar Hills57298_9Gas0.3 MWoperationalKing, Washington
Cedar Hills57298_15Gas0.3 MWoperationalKing, Washington
Cedar Hills57298_12Gas0.3 MWoperationalKing, Washington
Cedar Hills57298_11Gas0.3 MWoperationalKing, Washington
Cedar Hills57298_10Gas0.3 MWoperationalKing, Washington
Cedar Hills57298_13Gas0.3 MWoperationalKing, Washington
Cedar Hills57298_17Gas0.3 MWoperationalKing, Washington
Cedar Hills57298_14Gas0.3 MWoperationalKing, Washington
Cedar Hills57298_8Gas0.3 MWoperationalKing, Washington
Cedar Hills57298_6Gas0.3 MWoperationalKing, Washington
Cedar Hills57298_4Gas0.3 MWoperationalKing, Washington
Cedar Hills57298_3Gas0.3 MWoperationalKing, Washington
Cedar Hills57298_1Gas0.3 MWoperationalKing, Washington
Cedar Hills57298_2Gas0.3 MWoperationalKing, Washington
Mt. SiL0286Other0.0 MWwithdrawnKing, Washington
Novelty SubstationL0287Other0.0 MWwithdrawnKing, Washington

Top developers

Developer (canonical)ProjectsCapacity
Puget Sound Energy325 MW
Cedar Hills Energy LLC1300 MW
City of Milton121 MW
Enron Power Marketing, Inc.1300 MW

Explore related data

Source last checked2026-07-31
Data last materially changed2026-08-27
Page data generated2026-08-27

Provenance: bpa-oasis; U.S. EIA — Form EIA-860M generator inventory (operating + planned). Values are normalized from public source records into the interXdata canonical warehouse; see each source for original filings.

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