Interconnection queue in the USA — page 16

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 This shows every request: active, built and withdrawn.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 shown9,1872,001.0 GW

Active in queue2,001.0 GW9,187 requests

Agreement signed423.2 GW2,141 requests

Withdrawn24,2054,519.8 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

9,187 requests · page 16 of 184

Project	Capacity	Status	Location	Region	Queued	Online
Battery Storage Battery storage	500 MW	In study	Middlesex, MA	ISO-NE	Jun 2024	target 2028
Battery storage project AH1-725, Harford County Battery storage · Cardinal Energy Storage East, LLC	500 MW	In study	Harford, MD	PJM	Apr 2025
Other project J2694, Christian County Other	500 MW	In study	Christian, IL	MISO	Sep 2022	target 2027
Solar project J2704, Ouachita Parish County Solar	500 MW	In study	Ouachita Parish, LA	MISO	Sep 2022	target 2027
Solar + storage project GEN-2024-073, Lea County Solar + storage	500 MW	In study	Lea, NM	SPP	Oct 2024	target 2028
Solar + storage project 2023-MP1, Yavapai County Solar + storage	500 MW	In study	Yavapai, AZ	West	Feb 2023	target 2026
Solar + storage project GI-2024-06, Morgan County Solar + storage	500 MW	In study	Morgan, CO	West	May 2024	target 2027
Solar project J3931, Jasper County Solar	500 MW	In study	Jasper, IN	MISO	Feb 2025	target 2030
Battery storage project Company OW, Lyon County Battery storage	500 MW	Paused / redesign	Lyon, NV	West	Jan 2023	target 2028
Solar + storage project GEN-2024-303, Roosevelt County Solar + storage	500 MW	In study	Roosevelt, NM	SPP	Mar 2025	target 2029
Solar + storage project 84, Pima County Solar + storage	500 MW	In study	Pima, AZ	West	Sep 2020	target 2023
Battery Storage Battery storage	500 MW	In study	Barnstable, MA	ISO-NE	May 2024	target 2028
Solar + storage project 2023-G5.2 Solar + storage	500 MW	In study		West	Jun 2023	target 2028
Battery storage project PIS087, Salt Lake County Battery storage	500 MW	In study	Salt Lake, UT	West	Sep 2024	target 2027
Solar + storage project 25-00420, Clark County Solar + storage	500 MW	In study	Clark, NV	West	Jul 2025	target 2029
Other project Q564, Maricopa County Other	500 MW	In study	Maricopa, AZ	West	May 2024	target 2028
Solar + storage project J1899, Mississippi County Solar + storage	500 MW	In study	Mississippi, AR	MISO	Dec 2021	target 2027
Solar + storage project G0668, Grant County Solar + storage	500 MW	In study	Grant, WA	West	Jan 2021	target 2025
Solar + storage project GEN-2024-266, Potter County Solar + storage	500 MW	In study	Potter, TX	SPP	Mar 2025	target 2033
Solar + storage project J3076, Wabash County Solar + storage	500 MW	In study	Wabash, IL	MISO	Sep 2022	target 2025
Battery storage project T2-084, Salt Lake County Battery storage	500 MW	In study	Salt Lake, UT	West	Sep 2025	target 2029
Battery storage project IA-PNM-2023-11, Valencia County Battery storage	500 MW	In study	Valencia, NM	West	Jan 2023	target 2026
Onshore wind project NC5-008, Mohave County Onshore wind	500 MW	In study	Mohave, AZ	West	May 2021	target 2025
Onshore wind project GI-2016-14, Cheyenne County Onshore wind	500 MW	Agreement signed	Cheyenne, CO	West	Jul 2016	2020
Solar project J3192, Jackson County Solar	500 MW	In study	Jackson, AR	MISO	Sep 2022	target 2025
Solar + storage project GEN-2024-165, Coal County Solar + storage	500 MW	In study	Coal, OK	SPP	Mar 2025	target 2030
Gas project J3232, Vermillion County Gas	500 MW	In study	Vermillion, IN	MISO	Apr 2024	target 2028
Gas project J4005, Sullivan County Gas	500 MW	In study	Sullivan, IN	MISO	May 2025	target 2028
Solar + storage project Q113, Clark County Solar + storage	500 MW	In study	Clark, NV	West	May 2025	target 2032
Solar + storage project Q563, Pinal County Solar + storage	500 MW	In study	Pinal, AZ	West	May 2024	target 2028
Solar + storage project T2-008, Morrow County Solar + storage	500 MW	In study	Morrow, OR	West	Aug 2025	target 2028
Ironwood Solar Solar + storage	500 MW	Agreement signed	Yuma, AZ	CAISO	May 2017	target 2026
Solar + storage project Q28, Maricopa County Solar + storage	500 MW	In study	Maricopa, AZ	West	Oct 2019	target 2027
Other project Q603, Yuma County Other	500 MW	In study	Yuma, AZ	West	May 2025	target 2030
Battery storage project J4078, Mower County Battery storage	500 MW	In study	Mower, MN	MISO	Oct 2025	target 2030
Battery storage project Company OY, Lyon County Battery storage	500 MW	Paused / redesign	Lyon, NV	West	Jan 2023	target 2028
Solar + storage project IA-PNM-2017-13, San Juan County Solar + storage	500 MW	Agreement signed	San Juan, NM	West	Oct 2017	target 2020
Solar + storage project GEN-2024-294, Mayes County Solar + storage	500 MW	In study	Mayes, OK	SPP	Mar 2025	target 2030
Solar + storage project G1017, Klamath County Solar + storage	500 MW	In study	Klamath, OR	West	Nov 2023	target 2029
Nuclear project C2-32, Lincoln County Nuclear · US SFR Owner, LLC	500 MW	Agreement signed	Lincoln, WY	West	Apr 2022	target 2031
Onshore wind project G0861, Deschutes County Onshore wind	500 MW	In study	Deschutes, OR	West	Apr 2023	target 2027
Battery storage project 2023-G16, Mohave County Battery storage	500 MW	In study	Mohave, AZ	West	Dec 2023	target 2028
Wind + storage project J2690, Washington County Wind + storage	500 MW	In study	Washington, IL	MISO	Sep 2022	target 2027
Solar project J3401, Mississippi County Solar	500 MW	In study	Mississippi, AR	MISO	Apr 2024	target 2028
Antila Solar Solar · Antila Solar LLC	500 MW	Agreement signed	Borden, TX	ERCOT	Apr 2025	target 2027
Draco Solar Solar · Draco Solar LLC	500 MW	In study	Borden, TX	ERCOT	Apr 2025	target 2027
Battery storage project Company OS, Lander County Battery storage	500 MW	Paused / redesign	Lander, NV	West	Jan 2023	target 2035
Lake Elsinore Advanced Pumped Storage Project Battery storage	500 MW	Agreement signed	Riverside, CA	CAISO	Jun 2005	target 2028
Battery storage project 2023-G15, Mohave County Battery storage	500 MW	In study	Mohave, AZ	West	Dec 2023	target 2028
Onshore wind project G0619, Wasco County Onshore wind	500 MW	In study	Wasco, OR	West	Apr 2019	target 2023

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)