Solar interconnection queue in the USA — page 59

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 This shows every request: active, built and withdrawn.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 shown2,995427.5 GW

Active in queue427.5 GW2,995 requests

Agreement signed108.2 GW781 requests

Withdrawn9,252860.3 GW never built

Find requests

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

2,995 requests · page 59 of 60

Project	Capacity	Status	Location	Region	Queued	Online
Solar project AI2-469, Mercer County Solar	5.8 MW	In study	Mercer, PA	PJM	Mar 2023	target 2027
Solar project AI2-459, Berks County Solar	5.8 MW	In study	Berks, PA	PJM	Mar 2023	target 2027
Solar project AI2-470, Mercer County Solar	5.8 MW	In study	Mercer, PA	PJM	Mar 2023	target 2027
Solar project AI2-477, Bedford County Solar	5.8 MW	In study	Bedford, PA	PJM	Mar 2023	target 2027
Solar project AH2-039, Marion County Solar	5.5 MW	In study	Marion, WV	PJM	Nov 2021	target 2024
Solar project AI2-312, Venango County Solar	5.5 MW	In study	Venango, PA	PJM	Mar 2023	target 2022
Furnace View Farms Solar	5.0 MW	Paused / redesign	Berks, PA	PJM	Sep 2020	target 2023
Solar project 977893, Robeson County Solar	5.0 MW	In study	Robeson, NC	Southeast	Jun 2025
Solar project AI2-043, Northumberland County Solar	5.0 MW	In study	Northumberland, VA	PJM	Jan 2023	target 2024
Solar project 85, Adams County Solar	5.0 MW	In study	Adams, WA	West	Apr 2019	target 2020
Solar project AI2-017, Centre County Solar	5.0 MW	In study	Centre, PA	PJM	Dec 2022	target 2026
Solar Increase Solar	5.0 MW	In study	Hartford, CT	ISO-NE	Feb 2023	target 2027
Solar project 977895, Durham County Solar	5.0 MW	In study	Durham, NC	Southeast	Jun 2025
Solar project AH2-101, Prince Edward County Solar	5.0 MW	In study	Prince Edward, VA	PJM	Jan 2022	target 2023
Solar project 977876, Williamsburg County Solar	5.0 MW	In study	Williamsburg, SC	Southeast	Jun 2025
Solar project 977894, Robeson County Solar	5.0 MW	In study	Robeson, NC	Southeast	Jun 2025
Solar project 977864, Florence County Solar	5.0 MW	In study	Florence, SC	Southeast	Jun 2025
Solar project AH2-062, Chester County Solar	5.0 MW	In study	Chester, PA	PJM	Dec 2021	target 2023
Solar project AH2-036, Bradford County Solar	5.0 MW	In study	Bradford, PA	PJM	Nov 2021	target 2023
Solar project AH2-066, Jefferson County Solar	5.0 MW	In study	Jefferson, PA	PJM	Jan 2022	target 2023
Solar project AI2-019, Franklin County Solar	5.0 MW	In study	Franklin, PA	PJM	Dec 2022	target 2026
Solar project 977888, Rockingham County Solar	5.0 MW	In study	Rockingham, NC	Southeast	Jun 2025
Solar project AI1-030, Erie County Solar	5.0 MW	In study	Erie, PA	PJM	Apr 2022	target 2024
Solar project 977879, Florence County Solar	5.0 MW	In study	Florence, SC	Southeast	Jun 2025
Solar project AH2-014, Erie County Solar	5.0 MW	In study	Erie, PA	PJM	Oct 2021	target 2024
Solar project 968459, Darlington County Solar	5.0 MW	In study	Darlington, SC	Southeast	Jan 2025
Solar project 957087, Florence County Solar	5.0 MW	In study	Florence, SC	Southeast	Jun 2024
Solar project AH2-023, Mercer County Solar	5.0 MW	In study	Mercer, PA	PJM	Oct 2021	target 2024
Solar project 977889, Scotland County Solar	5.0 MW	In study	Scotland, NC	Southeast	Jun 2025
Solar project TCS-14, Yakima County Solar · OneEnergy Development, LLC	5.0 MW	Agreement signed	Yakima, WA	West	Oct 2018	target 2027
Solar project AH2-044, Clearfield County Solar	5.0 MW	In study	Clearfield, PA	PJM	Nov 2021	target 2024
Solar project AH2-094, Wayne County Solar	5.0 MW	In study	Wayne, PA	PJM	Jan 2022	target 2023
Solar project AI1-026 Solar	5.0 MW	In study		PJM	Apr 2022	target 2023
Solar project 977892, Warren County Solar	5.0 MW	In study	Warren, NC	Southeast	Jun 2025
Grissom Solar Solar	5.0 MW	Agreement signed	Sullivan, NH	ISO-NE	Mar 2022	target 2026
Solar project AH2-037, Fulton County Solar	5.0 MW	In study	Fulton, PA	PJM	Nov 2021	target 2023
Solar project SGI-PNM-2021-14, Otero County Solar	5.0 MW	In study	Otero, NM	West	Apr 2021	target 2022
Solar project AG2-037, Allegheny County Solar · PG Solar LLC	4.7 MW	In study	Allegheny, PA	PJM	Feb 2025	target 2021
Solar project 956532, Florence County Solar	4.5 MW	In study	Florence, SC	Southeast	Jun 2024
Solar project AI2-308, Bedford County Solar	4.4 MW	In study	Bedford, PA	PJM	Mar 2023	target 2024
Solar project 752, Malheur County Solar · Fry Foods Inc.	4.2 MW	Agreement signed	Malheur, OR	West	Aug 2024	target 2025
Solar project GI-2009-7, Alamosa County Solar	4.0 MW	Agreement signed	Alamosa, CO	West	May 2009	target 2010
Solar project 968543, Dillon County Solar	4.0 MW	In study	Dillon, SC	Southeast	Jan 2025
Cedar Lane Solar Solar	4.0 MW	Agreement signed	Queen Anne's, MD	PJM	Oct 2015	target 2026
Solar project 977896, Cleveland County Solar	4.0 MW	In study	Cleveland, NC	Southeast	Jun 2025
Solar project AI2-018, Somerset County Solar	4.0 MW	In study	Somerset, PA	PJM	Dec 2022	target 2026
Greenfield CSG 1 Solar	4.0 MW	Paused / redesign	Erie, PA	PJM	Sep 2020	target 2025
Springfield CSG 1 Solar	3.9 MW	Paused / redesign	Delaware, PA	PJM	Sep 2020	target 2024
Solar project 957223, Johnston County Solar	3.6 MW	In study	Johnston, NC	Southeast	Jul 2024
Solar project AH2-095, Crawford County Solar	3.3 MW	In study	Crawford, PA	PJM	Jan 2022	target 2022

Capacity in the queue by state

Click a state to drill down.

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.

20102025

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)