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United States β€Ί Grid β€Ί Interconnection queues

OCTARY USA Β· INTERCONNECTION QUEUES

Battery storage interconnection queue in the USA (2016 requests)

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 This shows every request: active, built and withdrawn.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 shown71,903 MW
Active in queue1,903 MW7 requests
Agreement signed1,003 MW5 requests
Withdrawn443,963 MW never built

Map

Loading requests…
In studyAgreement signedUnder constructionBuiltSuspendedWithdrawn

Requests

7 requests
ProjectCapacityStatusLocationRegionQueuedOnline
Battery storage project 310, Meagher County
Battery storage		 450 MWPaused / redesign Meagher, MTWest Dec 2016target 2023
Battery storage project C002, Meagher County
Battery storage		 450 MWPaused / redesign Meagher, MTWest Dec 2016target 2020
Corby
Battery storage		 314 MWAgreement signed Solano, CACAISO May 2016target 2027
Roccasecca BESS
Battery storage		 303 MWAgreement signed Clark, NVCAISO May 2016target 2026
Tahoe
Battery storage		 300 MWAgreement signed Clark, NVCAISO May 2016target 2026
Bear Swamp Unit 1 and 2 Upgrade
Battery storage		 66.0 MWAgreement signed Berkshire, MAISO-NE Jan 2016target 2023
Battery storage project GEN-2016-160, Ellis County
Battery storage		 20.0 MWAgreement signed Ellis, KSSPP Nov 2016target 2026

Capacity in the queue by state

Click a state to drill down.

AK–ME–VT–NH–WA–ID–MT900MWND–MN–IL–WI–MI–NY–RI–MA66MWOR–NV603MWWY–SD–IA–IN–OH–PA–NJ–CT–CA314MWUT–CO–NE–MO–KY–WV–VA–MD–DE–AZ–NM–KS20MWAR–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.

20112025

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 A request is a proposal to connect, not a commitment to build: historically most are withdrawn.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)