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United States โ€บ Grid โ€บ Interconnection queues โ€บ Washington

OCTARY USA ยท INTERCONNECTION QUEUES

Interconnection queue in Washington

Before a new power plant or battery can connect to the US grid, it joins a queue for studies and an interconnection agreement. Most requests never get built. This shows every request: active, built and withdrawn.

Requests shown20758.5 GW
Active in queue58.5 GW207 requests
Agreement signed3,095 MW26 requests
Withdrawn499103.5 GW never built

Map

Loading requestsโ€ฆ
In studyAgreement signedUnder constructionBuiltSuspendedWithdrawn

Requests

207 requests ยท page 1 of 5
ProjectCapacityStatusLocationRegionQueuedOnline
Solar + storage project G0822, Benton County
Solar + storage		 4,000 MWIn study Benton, WAWest Nov 2022target 2026
Other project G1025, Douglas County
Other		 1,274 MWIn study Douglas, WAWest Nov 2023target 2029
Battery storage project G0608, Klickitat County
Battery storage		 1,200 MWIn study Klickitat, WAWest Dec 2018target 2027
Nuclear project G0998, Benton County
Nuclear		 1,120 MWIn study Benton, WAWest Nov 2023target 2030
Solar + storage project G0670, Benton County
Solar + storage		 1,000 MWIn study Benton, WAWest Feb 2021target 2025
Battery storage project G0914, Douglas County
Battery storage		 1,000 MWIn study Douglas, WAWest Jul 2023target 2028
Solar + storage project G0688, Benton County
Solar + storage		 1,000 MWIn study Benton, WAWest Aug 2021target 2025
Solar + storage project G1087, Yakima County
Solar + storage		 1,000 MWIn study Yakima, WAWest Dec 2025target 2031
Gas project G0760, Grant County
Gas		 990 MWIn study Grant, WAWest Jun 2022target 2025
Solar + storage project G1040, Benton County
Solar + storage		 800 MWIn study Benton, WAWest Nov 2023target 2030
Solar + storage project G1082, Yakima County
Solar + storage		 800 MWIn study Yakima, WAWest Jul 2025target 2032
Solar + storage project G0932, Benton County
Solar + storage		 800 MWIn study Benton, WAWest Sep 2023target 2029
Solar + storage project G1037, Benton County
Solar + storage		 800 MWIn study Benton, WAWest Nov 2023target 2030
Solar + storage project G1080, Yakima County
Solar + storage		 800 MWIn study Yakima, WAWest Jul 2025target 2032
Solar + storage project G1081, Yakima County
Solar + storage		 800 MWIn study Yakima, WAWest Jul 2025target 2032
Solar + storage project G1039, Benton County
Solar + storage		 800 MWIn study Benton, WAWest Nov 2023target 2030
Solar + storage project G0920, Benton County
Solar + storage		 800 MWIn study Benton, WAWest Aug 2023target 2027
Solar + storage project G1083, Yakima County
Solar + storage		 800 MWIn study Yakima, WAWest Jul 2025target 2032
Solar + storage project G0933, Benton County
Solar + storage		 800 MWIn study Benton, WAWest Sep 2023target 2029
Solar + storage project G1038, Benton County
Solar + storage		 800 MWIn study Benton, WAWest Nov 2023target 2030
Wind + storage project G0921, Thurston County
Wind + storage		 718 MWIn study Thurston, WAWest Sep 2023target 2030
Solar + storage project G0684, Benton County
Solar + storage		 705 MWIn study Benton, WAWest Jul 2021target 2024
Other project G1072, Lewis County
Other		 667 MWIn study Lewis, WAWest Dec 2024target 2027
Solar + storage project G0853, Douglas County
Solar + storage		 600 MWIn study Douglas, WAWest Mar 2023target 2027
Wind + storage project G1007, Lewis County
Wind + storage		 600 MWIn study Lewis, WAWest Nov 2023target 2030
Onshore wind project G0953, Lincoln County
Onshore wind		 600 MWIn study Lincoln, WAWest Oct 2023target 2026
Solar + storage project G0840, Douglas County
Solar + storage		 600 MWIn study Douglas, WAWest Feb 2023target 2027
Other project 110, Garfield County
Other		 560 MWIn study Garfield, WAWest Jan 2021target 2025
Solar + storage project G0753, Douglas County
Solar + storage		 515 MWIn study Douglas, WAWest Jun 2022target 2025
Solar project G1032, Grant County
Solar		 500 MWIn study Grant, WAWest Nov 2023target 2028
Solar + storage project G0668, Grant County
Solar + storage		 500 MWIn study Grant, WAWest Jan 2021target 2025
Onshore wind project G0558, Benton County
Onshore wind		 500 MWIn study Benton, WAWest Feb 2017target 2019
Battery storage project G0915, Douglas County
Battery storage		 500 MWIn study Douglas, WAWest Jul 2023target 2028
Battery storage project G0656, Grant County
Battery storage		 500 MWIn study Grant, WAWest Sep 2020target 2023
Battery storage project G0916, Douglas County
Battery storage		 500 MWIn study Douglas, WAWest Jul 2023target 2028
Solar project G1015, Benton County
Solar		 500 MWIn study Benton, WAWest Nov 2023target 2029
Solar + storage project G0844, Klickitat County
Solar + storage		 420 MWIn study Klickitat, WAWest Feb 2023target 2026
Solar + storage project G0744, Grant County
Solar + storage		 400 MWIn study Grant, WAWest May 2022target 2026
Solar project G1035, Douglas County
Solar		 400 MWIn study Douglas, WAWest Nov 2023target 2028
Solar + storage project G0979, Klickitat County
Solar + storage		 400 MWIn study Klickitat, WAWest Nov 2023target 2029
Solar project G1016, Klickitat County
Solar		 400 MWIn study Klickitat, WAWest Nov 2023target 2029
Solar + storage project G0732, Benton County
Solar + storage		 400 MWIn study Benton, WAWest Mar 2022target 2027
Solar + storage project G0820, Douglas County
Solar + storage		 400 MWIn study Douglas, WAWest Nov 2022target 2027
Solar project G0589, Klickitat County
Solar		 381 MWIn study Klickitat, WAWest May 2018target 2023
Solar + storage project CS25-09, Adams County
Solar + storage		 375 MWIn study Adams, WAWest Apr 2025target 2030
Wind + storage project TCS-14, Garfield County
Wind + storage		 375 MWUnder construction Garfield, WAWest Jan 2021target 2027
Gas project 12-051, Cowlitz County
Gas		 375 MWPaused / redesign Cowlitz, WAWest Jul 2012target 2016
Solar + storage project G1086, Columbia County
Solar + storage		 359 MWIn study Columbia, WAWest Aug 2025target 2029
Onshore wind project G0955, Lincoln County
Onshore wind		 350 MWIn study Lincoln, WAWest Oct 2023target 2026
Onshore wind project G0954, Lincoln County
Onshore wind		 350 MWIn study Lincoln, WAWest Oct 2023target 2026
Page 1 of 5

Capacity in the queue by state

Click a state to drill down.

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By grid region

ISO/RTO markets and the non-ISO West and Southeast.

Requests by year joined

Capacity of requests in this view, by the year they entered the queue. Click a year.

20122025

Source: Rand, J. et al., Queued Up, Lawrence Berkeley National Laboratory, data through end of 2025. Compiled from the queues of the 7 ISO/RTOs and dozens of non-ISO utilities. A request is a proposal to connect, not a commitment to build: historically most are withdrawn. Capacity is the requested interconnection size; hybrids include the storage component. Transmission lines ยท Planned power plants (EIA)