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United States โ€บ Grid โ€บ Interconnection queues โ€บ Iowa

OCTARY USA ยท INTERCONNECTION QUEUES

Interconnection queue in Iowa

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 This shows every request: active, built and withdrawn.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 shown12323.9 GW
Active in queue23.9 GW123 requests
Agreement signed1,860 MW18 requests
Withdrawn29566.1 GW never built

Map

Loading requestsโ€ฆ
In studyAgreement signedUnder constructionBuiltSuspendedWithdrawn

Requests

123 requests ยท page 1 of 3
ProjectCapacityStatusLocationRegionQueuedOnline
Gas project J4113, Cerro Gordo County
Gas		 1,315 MWIn study Cerro Gordo, IAMISO Oct 2025target 2028
Gas project E0050, Linn County
Gas ยท Interstate Power and Light Company (IPL)		 987 MWIn study Linn, IAMISO Nov 2025target 2028
Gas project E0049, Cerro Gordo County
Gas ยท Interstate Power and Light Company (IPL)		 798 MWIn study Cerro Gordo, IAMISO Oct 2025target 2028
Gas project E0010, Marshall County
Gas ยท Interstate Power and Light Company (IPL)		 798 MWIn study Marshall, IAMISO Aug 2025target 2028
Nuclear project J3932, Linn County
Nuclear		 646 MWIn study Linn, IAMISO Mar 2025target 2029
Gas project J4114, Washington County
Gas		 525 MWIn study Washington, IAMISO Oct 2025target 2030
Solar project J2268, Linn County
Solar		 400 MWIn study Linn, IAMISO Aug 2021target 2024
Onshore wind project J3701, Taylor County
Onshore wind		 400 MWIn study Taylor, IAMISO Apr 2024target 2028
Onshore wind project E0015, Franklin County
Onshore wind ยท Interstate Power and Light Company (IPL)		 360 MWIn study Franklin, IAMISO Aug 2025target 2028
Gas project J2945, Washington County
Gas		 350 MWIn study Washington, IAMISO Sep 2022target 2027
Onshore wind project J3798, Winnebago County
Onshore wind		 320 MWIn study Winnebago, IAMISO Mar 2024target 2028
Onshore wind project J4056, Marshall County
Onshore wind		 310 MWIn study Marshall, IAMISO Aug 2025target 2030
Battery storage project J2469, Linn County
Battery storage		 300 MWIn study Linn, IAMISO Sep 2022target 2027
Onshore wind project J2369, Taylor County
Onshore wind		 300 MWIn study Taylor, IAMISO Sep 2022target 2030
Onshore wind project J982, Dickinson County
Onshore wind		 300 MWAgreement signed Dickinson, IAMISO Mar 2018target 2024
Onshore wind project J2436, Webster County
Onshore wind		 300 MWIn study Webster, IAMISO Sep 2022target 2030
Onshore wind project J4006, Ringgold County
Onshore wind		 290 MWIn study Ringgold, IAMISO May 2025target 2030
Orient Energy Center
Gas ยท MidAmerican Energy Company		 265 MWIn study Adair, IAMISO Aug 2025target 2027
Surplus; J500
Gas		 263 MWIn study Adair, IAMISO Jul 2025target 2027
Gas project J3047, Adair County
Gas		 263 MWIn study Adair, IAMISO Sep 2022target 2027
Replacing 244 MW of Solar with Nuclear; Duane Arnold
Nuclear		 251 MWIn study Linn, IAMISO Aug 2025target 2029
Solar project J877, Palo Alto County
Solar		 250 MWUnder construction Palo Alto, IAMISO Jun 2017target 2023
Onshore wind project J1432, Clinton County
Onshore wind		 250 MWAgreement signed Clinton, IAMISO Apr 2019target 2025
Solar + storage project J2272, Clinton County
Solar + storage		 250 MWIn study Clinton, IAMISO Jul 2021target 2026
Solar project J3911, Louisa County
Solar		 250 MWIn study Louisa, IAMISO Feb 2025target 2030
Onshore wind project J4068, Marshall County
Onshore wind		 232 MWIn study Marshall, IAMISO Oct 2025target 2030
Onshore wind project J2342, Worth County
Onshore wind		 230 MWIn study Worth, IAMISO Sep 2022target 2027
Replacing 30 MW of existing coal generation with BESS at Burlington Generation Station; Burlington 5
Other		 212 MWIn study Des Moines, IAMISO Feb 2022target 2024
Solar project J2811, Cerro Gordo County
Solar		 210 MWIn study Cerro Gordo, IAMISO Sep 2022target 2026
Solar project J2553, Cerro Gordo County
Solar		 210 MWIn study Cerro Gordo, IAMISO Sep 2022target 2026
Surplus; J449
Battery storage		 202 MWIn study Mitchell, IAMISO Mar 2025target 2027
Surplus; J1190
Battery storage		 200 MWIn study Clinton, IAMISO Jul 2025target 2026
Solar project J3477, Carroll County
Solar		 200 MWIn study Carroll, IAMISO Apr 2024target 2028
Solar project J1444, Linn County
Solar		 200 MWIn study Linn, IAMISO Apr 2019target 2025
Onshore wind project J1590, Plymouth County
Onshore wind		 200 MWIn study Plymouth, IAMISO Jun 2024target 2026
Onshore wind project J1867, Franklin County
Onshore wind		 200 MWIn study Franklin, IAMISO Nov 2021target 2025
Onshore wind project J3324, Palo Alto County
Onshore wind		 200 MWIn study Palo Alto, IAMISO Apr 2024target 2029
Onshore wind project J2990, Pottawattamie County
Onshore wind		 200 MWIn study Pottawattamie, IAMISO Sep 2022target 2025
Battery storage project J3551, Mahaska County
Battery storage		 200 MWIn study Mahaska, IAMISO Apr 2024target 2027
Surplus; J416
Battery storage		 200 MWIn study Franklin, IAMISO Aug 2025target 2026
Onshore wind project J3849, Winnebago County
Onshore wind		 200 MWIn study Winnebago, IAMISO Dec 2024target 2030
Solar project J1218, Muscatine County
Solar		 200 MWAgreement signed Muscatine, IAMISO Apr 2019target 2026
Onshore wind project J3713, Wapello County
Onshore wind		 200 MWIn study Wapello, IAMISO Apr 2024target 2028
Replacing 200 MW of Solar with Nuclear; J1444
Nuclear		 200 MWIn study Linn, IAMISO Aug 2025target 2029
Solar project J3725, Louisa County
Solar		 200 MWIn study Louisa, IAMISO Apr 2024target 2028
Onshore wind project J3655, Dallas County
Onshore wind		 200 MWIn study Dallas, IAMISO Apr 2024target 2028
Solar project J3464, Story County
Solar		 200 MWIn study Story, IAMISO Apr 2024target 2028
Solar project J2002, Washington County
Solar		 200 MWIn study Washington, IAMISO Aug 2021target 2024
Onshore wind project J1270, Palo Alto County
Onshore wind		 200 MWIn study Palo Alto, IAMISO Apr 2019target 2024
Solar project J1190, Clinton County
Solar		 200 MWAgreement signed Clinton, IAMISO Jan 2019target 2025
Page 1 of 3

Capacity in the queue by state

Click a state to drill down.

AKโ€“ME1GWVT129MWNH125MWWA58GWID21GWMT15GWND14GWMN28GWIL75GWWI27GWMI59GWNY26GWRI982MWMA11GWOR112GWNV82GWWY19GWSD9.6GWIA24GWIN60GWOH20GWPA12GWNJ16GWCT678MWCA179GWUT34GWCO43GWNE17GWMO30GWKY21GWWV6.9GWVA30GWMD5.9GWDE874MWAZ109GWNM34GWKS33GWAR35GWTN14GWNC21GWSC20GWDCโ€“OK52GWLA38GWMS17GWAL14GWGA46GWHIโ€“TX476GWFL24GW

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.

20152025

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 ยท Planned power plants (EIA)