Battery storage interconnection queue in PJM (Mid-Atlantic, Midwest)

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 This shows every request: active, built and withdrawn.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 shown24829.6 GW

Active in queue29.6 GW248 requests

Agreement signed3,188 MW39 requests

Withdrawn65747.9 GW never built

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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

248 requests · page 1 of 5

Project	Capacity	Status	Location	Region	Queued	Online
Battery storage project AI2-457, Charles County Battery storage	1,122 MW	In study	Charles, MD	PJM	Mar 2023	target 2027
Battery storage project AH1-716, James City County Battery storage · Cardinal Energy Storage East, LLC	650 MW	In study	James City, VA	PJM	Apr 2025
Battery storage project AH1-725, Harford County Battery storage · Cardinal Energy Storage East, LLC	500 MW	In study	Harford, MD	PJM	Apr 2025
Fourth Quarter Battery storage · Fourth Quarter BESS, LLC	500 MW	Agreement signed	Montgomery, MD	PJM	Oct 2020	target 2030
Battery storage project AH2-416, Livingston County Battery storage	450 MW	In study	Livingston, IL	PJM	Mar 2022	target 2026
Battery storage project AI1-022, Huntington County Battery storage	450 MW	In study	Huntington, IN	PJM	Apr 2022	target 2026
Battery storage project AH1-727, Loudoun County Battery storage · Cardinal Energy Storage East, LLC	425 MW	In study	Loudoun, VA	PJM	Apr 2025
Battery storage project AH2-333, Salem County Battery storage	415 MW	In study	Salem, NJ	PJM	Mar 2022	target 2025
Battery storage project AG2-545, Mchenry County Battery storage · Monarch Grid, LLC	400 MW	In study	Mchenry, IL	PJM	Mar 2025	target 2024
Battery storage project AJ1-012, Lake County Battery storage	354 MW	In study	Lake, IL	PJM	May 2023	target 2027
Battery storage project AH2-414, Huntington County Battery storage	350 MW	In study	Huntington, IN	PJM	Mar 2022	target 2026
Battery storage project AJ1-011, Lake County Battery storage	328 MW	In study	Lake, IL	PJM	May 2023	target 2027
Battery storage project AH2-133, City Of Chesapeake County Battery storage	300 MW	In study	City Of Chesapeake, VA	PJM	Mar 2022	target 2027
Battery storage project AI1-024, Mclean County Battery storage	300 MW	In study	Mclean, IL	PJM	Apr 2022	target 2026
Battery storage project AH1-260, Camden County Battery storage · Haddy Energy Storage LLC	300 MW	In study	Camden, NJ	PJM	Jan 2025	target 2025
Battery storage project AI1-017, Surry County Battery storage	300 MW	In study	Surry, VA	PJM	Apr 2022	target 2026
Battery storage project AH2-334, Camden County Battery storage	300 MW	In study	Camden, NJ	PJM	Mar 2022	target 2025
Battery storage project AH2-415, Livingston County Battery storage	300 MW	In study	Livingston, IL	PJM	Mar 2022	target 2026
Battery storage project AI1-018, Spotsylvania County Battery storage	300 MW	In study	Spotsylvania, VA	PJM	Apr 2022	target 2026
Battery storage project AI1-187, Hunterdon County Battery storage	280 MW	In study	Hunterdon, NJ	PJM	Sep 2022	target 2027
Battery storage project AJ1-014, Will County Battery storage	260 MW	In study	Will, IL	PJM	May 2023	target 2027
Battery storage project AI1-149, Mchenry County Battery storage	250 MW	In study	Mchenry, IL	PJM	Sep 2022	target 2025
Battery storage project AI2-068, Monmouth County Battery storage	250 MW	In study	Monmouth, NJ	PJM	Feb 2023	target 2026
Battery storage project AJ1-013, Will County Battery storage	250 MW	In study	Will, IL	PJM	May 2023	target 2027
Battery storage project AI1-167, Clermont County Battery storage	250 MW	In study	Clermont, OH	PJM	Sep 2022	target 2028
Woods Landing Energy Storage Battery storage	250 MW	Agreement signed	Atlantic, NJ	PJM	Mar 2020	target 2030
Battery storage project AG2-360, Smyth County Battery storage · Laurel Creek Energy Storage LLC	250 MW	In study	Smyth, VA	PJM	Feb 2025	target 2024
Battery storage project AI2-069, Monmouth County Battery storage	250 MW	In study	Monmouth, NJ	PJM	Feb 2023	target 2026
Battery storage project AI1-154, Will County Battery storage	230 MW	In study	Will, IL	PJM	Sep 2022	target 2027
Battery storage project AH2-421, Grundy County Battery storage	230 MW	In study	Grundy, IL	PJM	Mar 2022	target 2025
Battery storage project AI1-185, Augusta County Battery storage	210 MW	In study	Augusta, VA	PJM	Sep 2022	target 2027
Prospect Power Battery storage	200 MW	Agreement signed	Rockingham, VA	PJM	May 2019	target 2026
Flint Grid Battery storage	200 MW	Agreement signed	Licking, OH	PJM	Jul 2019	target 2027
Battery storage project AG2-329, Wyandot County Battery storage · Wombat Solar LLC	200 MW	In study	Wyandot, OH	PJM	Mar 2025	target 2024
Battery storage project AH2-102, Franklin County Battery storage	200 MW	In study	Franklin, VA	PJM	Jan 2022	target 2026
Battery storage project AH2-378A, Gloucester County Battery storage	200 MW	In study	Gloucester, NJ	PJM	Mar 2022	target 2025
Battery storage project AH2-051, New Castle County Battery storage	200 MW	In study	New Castle, DE	PJM	Dec 2021	target 2025
Hudson Energy Storage Facility Battery storage	200 MW	Agreement signed	Hudson, NJ	PJM	Sep 2019	target 2028
Battery storage project AH1-263, Spotsylvania County Battery storage · Scarlet Energy Storage LLC	200 MW	In study	Spotsylvania, VA	PJM	Feb 2025	target 2025
Battery storage project AH2-265, Charles County Battery storage	200 MW	In study	Charles, MD	PJM	Mar 2022	target 2026
Battery storage project AI1-013, Charles City County Battery storage	200 MW	In study	Charles City, VA	PJM	Apr 2022	target 2026
Battery storage project AH2-103, Fayette County Battery storage	200 MW	In study	Fayette, PA	PJM	Feb 2022	target 2026
Riverbank Energy Battery storage · Lincoln Reserve Energy, LLC	200 MW	In study	Cook, IL	PJM	Mar 2020	target 2024
Battery storage project AH2-347, St. Joseph County Battery storage	200 MW	In study	St. Joseph, IN	PJM	Mar 2022	target 2025
Battery storage project AI1-023, Mclean County Battery storage	200 MW	In study	Mclean, IL	PJM	Apr 2022	target 2026
Battery storage project AG2-544, Mchenry County Battery storage · Monarch Grid, LLC	200 MW	In study	Mchenry, IL	PJM	Mar 2025	target 2024
Battery storage project AH2-423, Calvert County Battery storage	180 MW	In study	Calvert, MD	PJM	Mar 2022	target 2025
Battery storage project AH2-259, Kendall County Battery storage	172 MW	In study	Kendall, IL	PJM	Mar 2022	target 2024
Battery storage project AH2-204, Stephenson County Battery storage	170 MW	In study	Stephenson, IL	PJM	Mar 2022	target 2026
Lamberton Road Battery Battery storage	170 MW	Agreement signed	Mercer, NJ	PJM	Sep 2019	target 2027

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.

20182025

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)