SAVRN Tracker

Iowa Data Center Permits Tracker

Name: Iowa Data Center Permits and Power Development Record
Creator: SAVRN
License: https://creativecommons.org/licenses/by/4.0/

Iowa has 8,542 MW of generation and storage requested in the interconnection queue and 1,064 MW of generation planned within 36 months. Every row below links to its primary source.

Last checked Sep 18, 2026

Data center & substation permits

of 0 total utility-scale permits tracked here

8,542MW

In the interconnection queue

34 active generation and storage positions

1,064MW

Planned generation

9 EIA-860M generators due within 36 months

#13

of 51 states with anything on record

Ranked by data center & substation permit count

Where the activity is

Ranked by row count. Counts are never mixed with the MW figures above.

Top counties · queue, substation & state air rows

Linn 7

Allamakee 2

Marshall 2

Sioux Center 2

Taylor 2

Wapello 2

Washington 2

Webster 2

Interconnection queue in Iowa

8,542 MW requested across 34 active generation and storage positions. Withdrawn and in-service rows are left out, matching the national page.

ISO	Project	Fuel	MW	Status
MISO	KilldeerITC MIDWESTCerro Gordo County	Natural gas	787 MW	Active
MISO	Duane Arnold 161 kVITC MIDWESTLinn County	Nuclear	646 MW	Active
MISO	SUB T HASKINSMIDAMERICAN ENERGY CO. MECWashington County	Natural gas	525 MW	Active
MISO	Duane ArnoldITC MIDWESTLinn County	Solar	400 MW	Active; not started
MISO	ORIENT - NORTHBORO 345.0kVMIDAMERICAN ENERGY CO. MECTaylor County	Onshore wind	400 MW	Active
MISO	SUB T 3 - HILLS 3 345.0kVWashington County	Natural gas	350 MW	Active; not started
MISO	Bison - Colby 345kVITC MIDWESTWinnebago County	Onshore wind	320 MW	Active
MISO	Lehigh - Marshalltown (Twinkle) 345kVTHE MUNICIPAL ELECTRIC UTILITY OF THE CITY OF CEDAR FALLS, IOWAMarshall County	Onshore wind	310 MW	Active
MISO	Madison-Orient 345kVMIDAMERICAN ENERGY CO. MECTaylor County	Onshore wind	300 MW	Active; not started
MISO	Webster-Lehigh 345kVMIDAMERICAN ENERGY CO. MECWebster County	Onshore wind	300 MW	Active; not started
MISO	Sub K (Tiffin)-Duane Arnold 345kVITC MIDWESTLinn County	Battery storage	300 MW	Active; not started
MISO	Orient - Denny 345kVMIDAMERICAN ENERGY CO. MECRinggold County	Onshore wind	290 MW	Active
MISO	ORIENTMIDAMERICAN ENERGY CO. MECAdair County	Other hybrids	263 MW	Active
MISO	Duane Arnold (ARNOLD 5)ITC MIDWESTLinn County	Nuclear	251 MW	Active
MISO	SUB 93 LOUISA - SUB T HASKINS 345.0kVMIDAMERICAN ENERGY CO. MECLouisa County	Solar	250 MW	Active
MISO	Lehigh - Marshalltown (Twinkle) 345kVMIDAMERICAN ENERGY CO.Marshall County	Onshore wind	232 MW	Active
MISO	Bison - Colby 345kVITC MIDWESTWinnebago County	Onshore wind	200 MW	Pending revision approval
MISO	Duane Arnold (ARNOLD 5)ITC MIDWESTLinn County	Nuclear	200 MW	Active
MISO	Calamus EastITC MIDWESTClinton County	Battery storage	200 MW	Active
MISO	QuinnITC MIDWESTFranklin County	Battery storage	200 MW	Active
MISO	Ottumwa Generating St. 161 kVITC MIDWESTWapello County	Battery storage	199 MW	Pending revision approval
MISO	Prairie Creek - Stony Point 115kVITC MIDWESTLinn County	Battery storage	195 MW	Pending revision approval
MISO	Grimes - Lehigh 345kVMIDAMERICAN ENERGY CO. MECWebster County	Onshore wind	170 MW	Active
MISO	LITTLE SIOUX - CLIPPER 161.0kVMIDAMERICAN ENERGY CO. MECCherokee County	Solar	160 MW	Active; not started
MISO	Sac - Pocahontas 161 kVMIDAMERICAN ENERGY CO. MECPocahontas County	Solar	156 MW	Active; not started
MISO	MITCHELL COUNTY (ITCM) - HAZLETON (ITCM) 345.0kVITC MIDWESTHoward County	Onshore wind	155 MW	Active
MISO	Enron SubstationMIDAMERICAN ENERGY CO. MECJohnson County	Solar	150 MW	Active; not started
MISO	LansingITC MIDWESTAllamakee County	Battery storage	150 MW	Done
MISO	LansingITC MIDWESTAllamakee County	Battery storage	130 MW	Done
MISO	Ottumwa Generation - Tri-County 161kVITC MIDWESTWapello County	Solar	120 MW	Pending revision approval
MISO	Wever - Burlington 161 kVITC MIDWESTLee County	Fuel not stated	120 MW	Done
MISO	Duane Arnold (ARNOLD 5)ITC MIDWESTLinn County	Nuclear	100 MW	Active
SPP	ASGI-2024-018Sioux Center County	Natural gas	6 MW	None
SPP	ASGI-2024-019Sioux Center County	Natural gas	6 MW	None

Planned generation in Iowa

1,064 MW across 9 EIA-860M generators scheduled to enter service within 36 months.

Plant	Technology	MW	Planned	Status
Silver Queen Wind FarmCrawford County	Onshore Wind Turbine	252 MW	Oct 2028	Regulatory approvals pending. Not under construction
Hawkeye Solar II, LLCClinton County	Solar Photovoltaic	250 MW	Mar 2028	Regulatory approvals pending. Not under construction
Hawkeye Solar, LLCClinton County	Solar Photovoltaic	200 MW	Mar 2028	Regulatory approvals pending. Not under construction
Rock Creek SolarClinton County	Solar Photovoltaic	150 MW	Dec 2026	Under construction, more than 50 percent complete
Coggon Solar LLCLinn County	Solar Photovoltaic	100 MW	Dec 2027	Under construction, less than or equal to 50 percent complete
Mills Solar ProjectMills County	Solar Photovoltaic	50 MW	Dec 2026	Under construction, less than or equal to 50 percent complete
Muscatine Plant #1Muscatine County	Natural Gas Fired Combustion Turbine	35 MW	Sep 2027	Regulatory approvals received. Not under construction
MPW Solar 1Muscatine County	Solar Photovoltaic	24 MW	Jan 2028	Regulatory approvals received. Not under construction
Teeple CreekAllamakee County	Solar Photovoltaic	2 MW	Dec 2026	Under construction, less than or equal to 50 percent complete

Other filings in Iowa

State air permits (2)

Facility	Agency	Generators	Status	Source
Ginger West Data Center - 11100 Booneville Rd	Iowa DNR		Technical Review
Willow Creek / Ginger East Data Centers	Iowa DNR		Technical Review

Where Iowa stands

Across the whole tracker, 533 data center and substation permits are on record in 51 states and DC. Iowa accounts for 0 of them, ranking #13 by that count. Ranking measures documented permit activity, not the size of the eventual buildout.

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