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United States β€Ί Grid β€Ί Interconnection queues

OCTARY USA Β· INTERCONNECTION QUEUES

Hydro interconnection queue in West (non-ISO utilities)

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 This shows every request: active, built and withdrawn.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 shown161,697 MW
Active in queue1,697 MW16 requests
Agreement signed105 MW8 requests
Withdrawn1214,296 MW never built

Map

Loading requests…
In studyAgreement signedUnder constructionBuiltSuspendedWithdrawn

Requests

16 requests
ProjectCapacityStatusLocationRegionQueuedOnline
Hydro project G0566, Lincoln County
Hydro		 646 MWIn study Lincoln, MTWest Jun 2017target 2022
Hydro project G0490, Douglas County
Hydro		 345 MWIn study Douglas, WAWest Jul 2013target 2022
Dworshak Fourth Unit
Hydro		 300 MWIn study Clearwater, IDWest Aug 2013target 2019
Hydro project G0535, Walla Walla County
Hydro		 210 MWIn study Walla Walla, WAWest May 2016target 2031
Hydro project 437, Cascade County
Hydro		 70.0 MWIn study Cascade, MTWest Dec 2022
Hydro project GI-2014-7, Clear Creek County
Hydro		 42.0 MWAgreement signed Clear Creek, COWest Jul 2014target 2019
Hydro project Q63, Kootenai County
Hydro		 26.0 MWAgreement signed Kootenai, IDWest target 2028
Hydro project 63, Kootenai County
Hydro		 26.0 MWAgreement signed Kootenai, IDWest Jun 2018target 2028
Hydro project 458, Broadwater County
Hydro		 10.4 MWIn study Broadwater, MTWest Apr 2024
Hydro project T2-077, Bighorn County
Hydro		 8.0 MWIn study Bighorn, MTWest Sep 2025
Hydro project GI-2012-1, Boulder County
Hydro		 5.0 MWAgreement signed Boulder, COWest Jan 2012target 2012
Hydro project GI-2020-18, Mesa County
Hydro		 4.5 MWAgreement signed Mesa, COWest Dec 2020target 2022
Hydro project 457, Lewis And Clark County
Hydro		 2.2 MWIn study Lewis And Clark, MTWest Mar 2024target 2025
Hydro project 1186, Bannock County
Hydro Β· Commercial Energy Management, Inc.		 0.9 MWAgreement signed Bannock, IDWest Oct 2019target 2021
Hydro project 973, Franklin County
Hydro Β· City of Preston		 0.4 MWAgreement signed Franklin, IDWest Nov 2017target 2018
Hydro project 755, Gem County
Hydro Β· Emmett Main Canal		 0.1 MWAgreement signed Gem, IDWest Jan 2025target 2026

Capacity in the queue by state

Click a state to drill down.

AK–ME–VT–NH–WA555MWID353MWMT737MWND–MN–IL–WI–MI–NY–RI–MA–OR–NV–WY–SD–IA–IN–OH–PA–NJ–CT–CA–UT–CO52MWNE–MO–KY–WV–VA–MD–DE–AZ–NM–KS–AR–TN–NC–SC–DC–OK–LA–MS–AL–GA–HI–TX–FL–

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 Β· Planned power plants (EIA)