Interconnection queue in MISO (Midcontinent) — page 26

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 This shows every request: active, built and withdrawn.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 shown1,646350.1 GW

Active in queue350.1 GW1,646 requests

Agreement signed28.1 GW187 requests

Withdrawn3,261621.9 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

1,646 requests · page 26 of 33

Project	Capacity	Status	Location	Region	Queued	Online
Battery storage project J3007, Mason County Battery storage	100 MW	In study	Mason, MI	MISO	Aug 2022	target 2025
Solar project J1534, Olmsted County Solar	100 MW	In study	Olmsted, MN	MISO	Apr 2025	target 2023
Battery storage project J4140, Ouachita Parish County Battery storage	100 MW	In study	Ouachita Parish, LA	MISO	Sep 2025	target 2030
Solar project J1375, Muskegon County Solar	100 MW	Under construction	Muskegon, MI	MISO	Apr 2019	target 2025
Battery storage project J3158, Cerro Gordo County Battery storage	100 MW	In study	Cerro Gordo, IA	MISO	Sep 2022	target 2027
Surplus; J947 Other	100 MW	In study		MISO	Apr 2022	target 2023
Solar project J1745, Winnebago County Solar	100 MW	Agreement signed	Winnebago, WI	MISO	Jun 2020	target 2028
Onshore wind project J2440, Benton County Onshore wind	100 MW	In study	Benton, IN	MISO	Sep 2022	target 2027
Solar project J1445, Benton County Solar	100 MW	Under construction	Benton, MN	MISO	Apr 2019	target 2025
Solar project J483, Liberty County Solar	100 MW	Agreement signed	Liberty, TX	MISO	Sep 2015	2024
Battery storage project J3172, Dakota County Battery storage	100 MW	In study	Dakota, MN	MISO	Sep 2022	target 2026
Solar project J1352, Montgomery County Solar	100 MW	Agreement signed	Montgomery, MO	MISO	Apr 2019	target 2024
Battery storage project J2064, Jackson County Battery storage	100 MW	In study	Jackson, MI	MISO	Nov 2021	target 2024
Solar project J2233, Vermilion County Solar	100 MW	In study	Vermilion, IL	MISO	Jun 2022	target 2024
Solar + storage project J2763, Sunflower County Solar + storage	100 MW	In study	Sunflower, MS	MISO	Sep 2022	target 2025
Solar project J1331, St. Clair County Solar	100 MW	Agreement signed	St. Clair, MI	MISO	Apr 2019	target 2025
Solar project J1407, Porter County Solar	100 MW	Agreement signed	Porter, IN	MISO	Apr 2019	target 2025
Solar project J1314, Polk County Solar	100 MW	Under construction	Polk, WI	MISO	Apr 2019	target 2025
Solar project J4127, Barron County Solar	100 MW	In study	Barron, WI	MISO	Sep 2025	target 2029
Battery storage project J2124, Champaign County Battery storage	100 MW	In study	Champaign, IL	MISO	Aug 2021	target 2022
Surplus; Polaris Solar Other	100 MW	Agreement signed	Gratiot, MI	MISO	Apr 2022	target 2023
Battery storage project J1845, Calhoun County Battery storage	100 MW	In study	Calhoun, MI	MISO	Dec 2020	target 2025
Battery storage project J1659, Washtenaw County Battery storage	100 MW	Under construction	Washtenaw, MI	MISO	Jun 2020	target 2025
Solar project J3899, Putnam County Solar	100 MW	In study	Putnam, IL	MISO	Dec 2024	target 2027
Battery storage project J3093, Madison County Battery storage	100 MW	In study	Madison, MS	MISO	Sep 2022	target 2024
Battery storage project J4131, Scott County Battery storage	100 MW	In study	Scott, MS	MISO	Oct 2025	target 2030
Solar project J1820, Lee County Solar	100 MW	In study	Lee, AR	MISO	Jun 2020	target 2026
Surplus; J1638 Battery storage	100 MW	In study	Hancock, KY	MISO	Jan 2025	target 2029
Solar project J2179, Montgomery County Solar	100 MW	In study	Montgomery, MO	MISO	Aug 2021	target 2024
Battery storage project J3344, Knox County Battery storage	100 MW	In study	Knox, IL	MISO	Apr 2024	target 2028
Solar project J1219, Tangipahoa Parish County Solar	100 MW	Under construction	Tangipahoa Parish, LA	MISO	Apr 2019	target 2024
Solar project J4124, Trinity County Solar	100 MW	In study	Trinity, TX	MISO	Aug 2025	target 2029
Solar project J1777, Perry County Solar	100 MW	In study	Perry, IL	MISO	Jun 2020	target 2026
Battery storage project J2026, Gratiot County Battery storage	100 MW	In study	Gratiot, MI	MISO	Nov 2021	target 2022
Surplus; J1375 Battery storage	100 MW	In study	Muskegon, MI	MISO	Jan 2025	target 2028
Solar project J1916, Branch County Solar	100 MW	In study	Branch, MI	MISO	Oct 2023	target 2026
Solar project J1124, Olmsted County Solar	100 MW	Under construction	Olmsted, MN	MISO	Mar 2018	target 2024
Solar + storage project J2057, Montcalm County Solar + storage	100 MW	In study	Montcalm, MI	MISO	Aug 2021	target 2024
Solar project J3128, East Feliciana Parish County Solar	100 MW	In study	East Feliciana Parish, LA	MISO	Sep 2022	target 2026
Battery storage project J2618, Macomb County Battery storage	100 MW	In study	Macomb, MI	MISO	Sep 2022	target 2026
Solar project J1587, Muskegon County Solar	100 MW	Agreement signed	Muskegon, MI	MISO	Jun 2020	target 2025
Battery storage project J2232, Tipton County Battery storage	100 MW	In study	Tipton, IN	MISO	Aug 2021	target 2024
Solar project J1472, Jackson County Solar	100 MW	Agreement signed	Jackson, MI	MISO	Apr 2019	target 2024
Solar project J2297, Sunflower County Solar	100 MW	In study	Sunflower, MS	MISO	Sep 2021	target 2026
Solar + storage project J2956, Morehouse Parish County Solar + storage	100 MW	In study	Morehouse Parish, LA	MISO	Sep 2022	target 2027
Solar + storage project J2957, Panola County Solar + storage	100 MW	In study	Panola, MS	MISO	Sep 2022	target 2027
Solar project J1391, Dubois County Solar	100 MW	Agreement signed	Dubois, IN	MISO	Apr 2019	target 2025
Solar project J3165, Breckinridge County Solar	100 MW	In study	Breckinridge, KY	MISO	Sep 2022	target 2025
replacing 100MW of un-built solar with BESS; Mayhew Other	100 MW	In study	Benton, MN	MISO	Nov 2023	target 2025
Solar project J2495, Benton County Solar	100 MW	In study	Benton, MN	MISO	Sep 2022	target 2026

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.

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)