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United States › Grid › Interconnection queues

OCTARY USA · INTERCONNECTION QUEUES

Other interconnection queue in the USA — page 4

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 This shows every request: active, built and withdrawn.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 shown32874.4 GW
Active in queue74.4 GW328 requests
Agreement signed5,506 MW27 requests
Withdrawn1,273328.9 GW never built

Map

Loading requests…
In studyAgreement signedUnder constructionBuiltSuspendedWithdrawn

Requests

328 requests · page 4 of 7
ProjectCapacityStatusLocationRegionQueuedOnline
Heartfield Storage
Other · Belltown Power Texas		 152 MWPaused / redesign Hidalgo, TXERCOT Sep 2021target 2023
Other project CLPT G29, Laramie County
Other		 150 MWIn study Laramie, WYWest May 2024target 2027
Surplus; J1450
Other		 150 MWIn study Webster, KYMISO Feb 2025target 2026
Other project PP00040, Durham County
Other		 150 MWIn study Durham, NCSoutheast Aug 2025target 2030
Surplus; J1062
Other		 150 MWIn study Washtenaw, MIMISO Oct 2024target 2027
Surplus; J875
Other		 150 MWIn study Lenawee, MIMISO Oct 2024target 2027
Other project 977263, Durham County
Other		 150 MWIn study Durham, NCSoutheast Jun 2025
Surplus; Shelby
Other		 150 MWIn study Cumberland, ILMISO Jun 2024target 2026
Other project ERAS-2025-031, Wyandotte County
Other		 150 MWIn study Wyandotte, KSSPP Oct 2025target 2028
Other project Q587, Pinal County
Other		 150 MWIn study Pinal, AZWest May 2025target 2031
Surplus; J1320
Other		 150 MWIn study Branch, MIMISO Aug 2024target 2026
Surplus; J806
Other		 149 MWIn study Calhoun, MIMISO target 2026
Other project PP00034, Lee County
Other		 145 MWIn study Lee, SCSoutheast Jul 2025target 2029
Other project Q548, Pinal County
Other		 145 MWIn study Pinal, AZWest Apr 2024target 2027
Other project J3400, Deuel County
Other		 142 MWIn study Deuel, SDMISO Mar 2024target 2028
Replacing 135.5 MW with 135.5 MW BESS; Blue Lake Units 1 2 4
Other		 136 MWIn study Scott, MNMISO May 2024target 2027
Surplus; J33/J734
Other		 135 MWIn study Ford, ILMISO May 2023target 2026
Surplus; J734
Other		 135 MWIn study Mclean, ILMISO Dec 2022target 2026
Kodiak AGR1
Other · Hunt Energy Network, LLC		 132 MWIn study Reeves, TXERCOT Feb 2024target 2027
Other project GEN-2025-SR13, Seminole County
Other		 130 MWIn study Seminole, OKSPP May 2025target 2029
Other project Q588, Pinal County
Other		 130 MWIn study Pinal, AZWest May 2025target 2031
Other project Q614, Maricopa County
Other		 125 MWIn study Maricopa, AZWest May 2025target 2027
Other project GEN-2022-009, Williams County
Other		 125 MWIn study Williams, NDSPP May 20222025
Other project GEN-2025-SR15, Mcclain County
Other		 125 MWIn study Mcclain, OKSPP May 2025target 2029
Replacing 124.4 MW of existing gas generation with solar at Woodruff County (formerly Bailey); Woodruff Co Solar
Other		 124 MWIn study MISO Feb 20222024
Surplus; J1734
Other		 120 MWIn study Lee, IAMISO Nov 2024target 2025
Surplus; J442
Other		 120 MWIn study Codington, SDMISO Oct 2023target 2026
Surplus; G736
Other		 120 MWIn study Codington, SDMISO Oct 2023target 2026
Fort Duncan BESS
Other · Fort Duncan BESS LLC		 106 MWPaused / redesign Maverick, TXERCOT Aug 20212025
Estonian Storage
Other · 249RD 8ME		 103 MWPaused / redesign Delta, TXERCOT Jan 2020target 2022
Echols Creek Storage
Other · BT Ferguson Solar, LLC		 101 MWPaused / redesign Lamar, TXERCOT Apr 2023target 2027
San Bernard Storage
Other · San Bernard Storage, LLC		 101 MWPaused / redesign Wharton, TXERCOT Nov 2019target 2022
Surplus; J199/J202
Other		 100 MWIn study Tuscola, MIMISO Jul 2024target 2013
Surplus; J909
Other		 100 MWIn study Tangipahoa Parish, LAMISO Jan 2025target 2027
Other project GEN-2025-SR19, Chouteau County
Other		 100 MWIn study Chouteau, OKSPP Jun 2025target 2029
Other project 6, Chelan County
Other		 100 MWIn study Chelan, WAWest Oct 2023target 2027
Surplus; J947
Other		 100 MWIn study MISO Apr 2022target 2023
Other project GEN-2025-SR23, Oklahoma County
Other		 100 MWIn study Oklahoma, OKSPP Jun 2025target 2026
Surplus; Polaris Solar
Other		 100 MWAgreement signed Gratiot, MIMISO Apr 2022target 2023
Other project 115, Pima County
Other		 100 MWIn study Pima, AZWest Mar 2022target 2025
Other project GEN-2025-SR20, Douglas County
Other		 100 MWIn study Douglas, NESPP Jun 2025target 2030
replacing 100MW of un-built solar with BESS; Mayhew
Other		 100 MWIn study Benton, MNMISO Nov 2023target 2025
Surplus; J1314
Other		 100 MWIn study Polk, WIMISO Sep 2022target 2025
Other project 116, Pima County
Other		 100 MWIn study Pima, AZWest Mar 2022target 2025
Other project GEN-2025-SR21, Tulsa County
Other		 100 MWIn study Tulsa, OKSPP Jun 2025target 2028
Surplus; J385
Other		 100 MWIn study Chisago, MNMISO Jul 2024target 2026
Other project GEN-2025-SR22, Oklahoma County
Other		 100 MWIn study Oklahoma, OKSPP Jun 2025target 2028
Surplus; J758
Other		 100 MWIn study Calhoun, MIMISO Aug 2024target 2027
Other project J4183
Other		 99.9 MWIn study MISO target 2027
Replacing 95 MW of coal with BESS; Meramec 1, 2, 3, 4
Other		 98.8 MWIn study St. Louis, MOMISO Dec 2024target 2025
Page 4 of 7

Capacity in the queue by state

Click a state to drill down.

AK–ME–VT–NH–WA3.9GWID1.3GWMT502MWND866MWMN1.1GWIL2.1GWWI589MWMI2.3GWNY–RI–MA7MWOR16GWNV2.1GWWY2.2GWSD382MWIA463MWIN263MWOH8MWPA10MWNJ–CT–CA5.5GWUT–CO300MWNE587MWMO1.9GWKY150MWWV50MWVA20MWMD–DE10MWAZ20GWNM460MWKS177MWAR500MWTN–NC2.8GWSC537MWDC–OK1.5GWLA533MWMS–AL–GA70MWHI–TX3.4GWFL61MW

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)