Battery storage interconnection queue in the USA — page 25

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 This shows every request: active, built and withdrawn.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 shown2,226417.8 GW

Active in queue417.8 GW2,226 requests

Agreement signed76.1 GW459 requests

Withdrawn3,516554.5 GW never built

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Project, developer, substation or county State Grid region Technology Status Year joined Sort

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Source: Lawrence Berkeley National Laboratory, Queued Up interconnection queue data (data through end of 2025). Map points are county centres, not exact sites.

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In studyAgreement signedUnder constructionBuiltSuspendedWithdrawn

Requests

2,226 requests · page 25 of 45

Project	Capacity	Status	Location	Region	Queued	Online
Battery storage project J3651, Lenawee County Battery storage	150 MW	In study	Lenawee, MI	MISO	Apr 2024	target 2028
Battery storage project GEN-2024-325, Chaves County Battery storage	150 MW	In study	Chaves, NM	SPP	Mar 2025	target 2028
Energy Mountain Battery storage	150 MW	Paused / redesign	Bucks, PA	PJM	Mar 2018	target 2029
Battery storage project IA-PNM-2023-18, Valencia County Battery storage	150 MW	In study	Valencia, NM	West	Sep 2023	target 2026
Battery storage project 147, Pima County Battery storage	150 MW	In study	Pima, AZ	West	Dec 2022	target 2026
Battery storage project J2731, Olmsted County Battery storage	150 MW	In study	Olmsted, MN	MISO	Sep 2022	target 2025
NY Chateaugay 0 Willis Rd Storage (NYISO-C24-304-004) Battery storage	150 MW	In study	Franklin, NY	ISO-NE	Dec 2024	target 2028
Battery storage project J3636, Tuscola County Battery storage	150 MW	In study	Tuscola, MI	MISO	Apr 2024	target 2028
Battery storage project AH2-077, Sussex County Battery storage	150 MW	In study	Sussex, DE	PJM	Jan 2022	target 2027
Battery storage project GEN-2022-235, Canadian County Battery storage	150 MW	In study	Canadian, OK	SPP	Feb 2023	target 2028
Battery storage project Q357, Maricopa County Battery storage	150 MW	Under construction	Maricopa, AZ	West	Sep 2020	target 2023
Ea150B Battery storage	150 MW	In study	El Paso, TX	West	Jun 2025	target 2028
Battery storage project J4079, Calcasieu Parish County Battery storage	150 MW	In study	Calcasieu Parish, LA	MISO	Oct 2025	target 2030
Battery storage project 639, Ada County Battery storage · Idaho Power Company‚ÄîPower Supply	150 MW	Agreement signed	Ada, ID	West	Feb 2022	target 2026
Aurora Battery Storage II Battery storage · Aurora Generation, LLC	150 MW	In study	IL	PJM	Feb 2025	target 2025
Battery storage project GEN-2024-244, Texas County Battery storage	150 MW	In study	Texas, OK	SPP	Mar 2025	target 2029
Alcazar 2 Battery storage · Terra-Gen Development Company, LLC	150 MW	In study	Ulster, NY	NYISO	Aug 2024	target 2028
Battery storage project IA-PNM-2025-13, Valencia County Battery storage	150 MW	In study	Valencia, NM	West	Mar 2025	target 2027
Battery storage project GEN-2023-170, Chariton County Battery storage	150 MW	In study	Chariton, MO	SPP	Oct 2023	target 2028
Oakdale Battery Storage LLC Battery storage · BayWa r.e Projects LLC.	150 MW	In study	Broome, NY	NYISO	Aug 2024	target 2030
Battery storage project 640, Ada County Battery storage · Idaho Power Company‚ÄîPower Supply	150 MW	Paused / redesign	Ada, ID	West	Feb 2022	target 2026
Battery storage project J2326, Outagamie County Battery storage	150 MW	In study	Outagamie, WI	MISO	Sep 2022	target 2025
Battery storage project GEN-2024-276, Shawnee County Battery storage	150 MW	In study	Shawnee, KS	SPP	Mar 2025	target 2030
Battery storage project GEN-2023-057, Pawnee County Battery storage	150 MW	In study	Pawnee, OK	SPP	Oct 2023	target 2028
Battery storage project 27, Sacramento County Battery storage	150 MW	In study	Sacramento, CA	West	Oct 2022	target 2027
Levy Grid, LLC Battery storage · Levy Grid, LLC	150 MW	In study	Erie, NY	NYISO	Dec 2018	target 2027
Battery storage project J3650, Genesee County Battery storage	150 MW	In study	Genesee, MI	MISO	Apr 2024	target 2028
Battery storage project AG2-288, Frederick County Battery storage · Rockline Reliability Center LLC	150 MW	In study	Frederick, VA	PJM	Feb 2025	target 2023
Battery storage project GEN-2023-171, Jackson County Battery storage	150 MW	In study	Jackson, MO	SPP	Oct 2023	target 2028
Battery storage project J3387, Henry County Battery storage	150 MW	In study	Henry, IN	MISO	Apr 2024	target 2026
Battery storage project AG2-621, Beaver County Battery storage · ACE Development Company, LLC	150 MW	In study	Beaver, PA	PJM	Feb 2025	target 2023
Battery storage project PP00028, Wayne County Battery storage	150 MW	In study	Wayne, NC	Southeast	Apr 2025	target 2028
Battery storage project J2730, Jackson County Battery storage	150 MW	In study	Jackson, MN	MISO	Sep 2022	target 2025
Battery storage project AI1-166, Cass County Battery storage	150 MW	In study	Cass, MI	PJM	Sep 2022	target 2028
Battery storage project GEN-2024-306, Lea County Battery storage	150 MW	In study	Lea, NM	SPP	Mar 2025	target 2031
Battery storage project AI2-002, Washington County Battery storage	150 MW	In study	Washington, VA	PJM	Oct 2022	target 2028
Corazon Energy Storage Battery storage	150 MW	Agreement signed	Bernalillo, NM	West	Jul 2021	target 2024
Battery storage project AH1-564, Winnebago County Battery storage · Rockford Generation, LLC	150 MW	In study	Winnebago, IL	PJM	Mar 2025	target 2025
Battery storage project AI2-070, Atlantic County Battery storage	150 MW	In study	Atlantic, NJ	PJM	Feb 2023	target 2027
Battery storage project GEN-2022-238, Pottawatomie County Battery storage	150 MW	In study	Pottawatomie, OK	SPP	Feb 2023	target 2028
Battery storage project T2-072, Siskiyou County Battery storage	150 MW	In study	Siskiyou, CA	West	Sep 2025	target 2027
Battery storage project AH2-144, King George County Battery storage	150 MW	In study	King George, VA	PJM	Feb 2022	target 2027
NY Chateaugay 0 Willis Rd Storage Battery storage · Chateauguay River, LLC	150 MW	In study	Franklin, NY	NYISO	Oct 2024	target 2028
Battery storage project IA-PNM-2021-16, Sandoval County Battery storage · EsVolta Development	150 MW	Agreement signed	Sandoval, NM	West	Jul 2021	target 2024
Gowanus Energy Storage Battery storage · Astoria Generating Company, L.P.	150 MW	In study	Kings, NY	NYISO	Sep 2024	target 2028
Battery storage project Q299, Maricopa County Battery storage	150 MW	Agreement signed	Maricopa, AZ	West	Mar 2019	target 2023
Battery storage project J2728, Freeborn County Battery storage	150 MW	In study	Freeborn, MN	MISO	Sep 2022	target 2025
Battery storage project J2627, Adams County Battery storage	150 MW	In study	Adams, IL	MISO	Sep 2022	target 2025
Battery storage project 122, Pinal County Battery storage	150 MW	In study	Pinal, AZ	West	May 2022	target 2026
San Perlita BESS 2 Battery storage · RWE Renewables	150 MW	In study	Willacy, TX	ERCOT	Jun 2022	target 2025

Capacity in the queue by state

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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.

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 · Planned power plants (EIA)