Solar interconnection queue in the USA — page 41

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 This shows every request: active, built and withdrawn.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

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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

2,995 requests · page 41 of 60

Project	Capacity	Status	Location	Region	Queued	Online
Solar project 977832, Granville County Solar	74.9 MW	In study	Granville, NC	Southeast	Jun 2025
Solar project FC100383, Liberty County Solar · Duke Energy Florida, LLC	74.9 MW	In study	Liberty, FL	Southeast	Dec 2025	target 2029
Solar project 281, Aiken County Solar	74.9 MW	In study	Aiken, SC	Southeast	Jun 2024	target 2028
Solar project PP00008, Darlington County Solar	74.9 MW	Under construction	Darlington, SC	Southeast	Jan 2025	target 2028
Solar project 962968, Marion County Solar	74.9 MW	In study	Marion, SC	Southeast	Sep 2024
Solar project 977873, Chesterfield County Solar	74.9 MW	In study	Chesterfield, SC	Southeast	Jun 2025
Solar project 269, Marion County Solar · Solar FL 2018 LLC	74.9 MW	In study	Marion, FL	Southeast	Sep 2019	target 2021
Solar project 320, Hernando County Solar · Duke Energy Florida, LLC	74.9 MW	Paused / redesign	Hernando, FL	Southeast	Dec 2022	target 2027
Solar project 305, Suwannee County Solar · CP Ironwood, LLC	74.9 MW	Paused / redesign	Suwannee, FL	Southeast	Apr 2022	target 2026
Solar project 566518, Darlington County Solar	74.9 MW	Under construction	Darlington, SC	Southeast	Jun 2022	target 2028
Solar project 609, Charlotte County Solar · FPL	74.9 MW	In study	Charlotte, FL	Southeast	Dec 2023	target 2032
Valdivian Solar Solar · Abei Energy Green III LLC	74.9 MW	In study	Hunt, TX	ERCOT	Feb 2023	target 2028
Solar project 293, Alachua County Solar · Pleasant Solar, LLC	74.9 MW	Paused / redesign	Alachua, FL	Southeast	Aug 2021	target 2024
Solar project 338, Hamilton County Solar · Duke Energy Florida, LLC	74.9 MW	Paused / redesign	Hamilton, FL	Southeast	Nov 2023	target 2025
Solar project 566478, Darlington County Solar	74.9 MW	Agreement signed	Darlington, SC	Southeast	Jun 2022	target 2026
Solar project 566202, Anderson County Solar	74.9 MW	Agreement signed	Anderson, SC	Southeast	Jun 2022	target 2031
Solar project FC100006, Madison County Solar · Duke Energy Florida, LLC	74.9 MW	In study	Madison, FL	Southeast	Nov 2024	target 2028
Solar project 308, Suwannee County Solar · CP Ironwood, LLC	74.9 MW	Paused / redesign	Suwannee, FL	Southeast	Apr 2022	target 2026
Solar project PP00009, Darlington County Solar	74.9 MW	Under construction	Darlington, SC	Southeast	Jan 2025	target 2028
Solar project FC100385, Suwannee County Solar · Duke Energy Florida, LLC	74.9 MW	In study	Suwannee, FL	Southeast	Dec 2025	target 2030
Solar project 325, Osceola County Solar · Duke Energy Florida, LLC	74.9 MW	Under construction	Osceola, FL	Southeast	May 2023	target 2026
Solar project 20240829007, Barnwell County Solar	74.8 MW	In study	Barnwell, SC	Southeast		target 2028
Solar project 211, Horry County Solar	74.8 MW	In study	Horry, SC	Southeast	Jun 2023	target 2026
Solar project AH2-198, Wicomico County Solar	74.7 MW	In study	Wicomico, MD	PJM	Mar 2022	target 2026
Solar project 503, Martin County Solar · FPL	74.5 MW	In study	Martin, FL	Southeast	Jan 2023	target 2030
Solar project 507, Martin County Solar · FPL	74.5 MW	In study	Martin, FL	Southeast	Jan 2023	target 2030
Solar project 534, Hendry County Solar · FPL	74.5 MW	In study	Hendry, FL	Southeast	Jan 2023	target 2031
Solar project 497, Martin County Solar · FPL	74.5 MW	In study	Martin, FL	Southeast	Jan 2023	target 2029
Solar project 551, Hendry County Solar · FPL	74.5 MW	In study	Hendry, FL	Southeast	Jan 2023	target 2032
Solar project 511, Manatee County Solar · FPL	74.5 MW	In study	Manatee, FL	Southeast	Jan 2023	target 2031
Storey Bend South Solar	74.5 MW	In study	Osceola, FL	Southeast	Feb 2024	target 2026
Solar project 542, Hendry County Solar · FPL	74.5 MW	In study	Hendry, FL	Southeast	Jan 2023	target 2031
Solar project 171, Gilchrist County Solar · Florida Renewable Partners, LLC	74.5 MW	In study	Gilchrist, FL	Southeast	Dec 2016	target 2021
Solar project 504, Martin County Solar · FPL	74.5 MW	In study	Martin, FL	Southeast	Jan 2023	target 2030
Solar project 517, Charlotte County Solar · FPL	74.5 MW	In study	Charlotte, FL	Southeast	Jan 2023	target 2030
Solar project 519, Charlotte County Solar · FPL	74.5 MW	In study	Charlotte, FL	Southeast	Jan 2023	target 2031
Solar project 473, Desoto County Solar · FPL	74.5 MW	In study	Desoto, FL	Southeast	Jul 2022	target 2029
Solar project 518, Charlotte County Solar · FPL	74.5 MW	In study	Charlotte, FL	Southeast	Jan 2023	target 2030
Solar project 454, St. Lucie County Solar · FPL	74.5 MW	In study	St. Lucie, FL	Southeast	Apr 2022	target 2030
Solar project 541, Hendry County Solar · FPL	74.5 MW	In study	Hendry, FL	Southeast	Jan 2023	target 2031
Solar project 546, Hendry County Solar · FPL	74.5 MW	In study	Hendry, FL	Southeast	Jan 2023	target 2032
Solar project 547, Hendry County Solar · FPL	74.5 MW	In study	Hendry, FL	Southeast	Jan 2023	target 2032
Solar project 493, Indian River County Solar · FPL	74.5 MW	In study	Indian River, FL	Southeast	Jan 2023	target 2028
Solar project 408, St. Lucie County Solar · FPL	74.5 MW	In study	St. Lucie, FL	Southeast	Jul 2020	target 2026
Solar project 453, St. Lucie County Solar · FPL	74.5 MW	In study	St. Lucie, FL	Southeast	Apr 2022	target 2031
Solar project 437, Manatee County Solar · FPL	74.5 MW	In study	Manatee, FL	Southeast	Mar 2022	target 2026
Solar project 596, St. Lucie County Solar · FPL	74.5 MW	In study	St. Lucie, FL	Southeast	Jul 2023	target 2031
Solar project 501, Martin County Solar · FPL	74.5 MW	In study	Martin, FL	Southeast	Jan 2023	target 2030
Solar project 276, Union County Solar · FPL	74.5 MW	In study	Union, FL	Southeast	Jun 2017	target 2029
Solar project 526, Hendry County Solar · FPL	74.5 MW	In study	Hendry, FL	Southeast	Jan 2023	target 2029

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)