Interstate

3570 Ridgely Road, Springfield, IL 62707

Plant Summary Information

Interstate is ranked #27 out of 64 natural gas power plants in Illinois in terms of total annual net electricity generation.

Interstate is comprised of 1 generator and generated 14.2 GWh during the 3-month period between September 2025 to December 2025.

Plant Name	Interstate
Utility Name	City of Springfield - (IL)
Location	Sangamon County, IL
Initial Operation Date	September 1997
Last Update	Dec 2025
Annual Generation	57.5 GWh
Annual Consumption	725.7 k MMBtu
Ranked #4,048 out of 13,094 Power Plants Nationwide
Ranked #1,055 out of 2,208 Natural Gas Power Plants Nationwide
Ranked #122 out of 483 Illinois Power Plants
Ranked #27 out of 64 Illinois Natural Gas Power Plants
Fuel Types	Natural Gas : 99.2% Distillate Fuel Oil : 0.8%

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Summary Information
Plant Name	Interstate (7425)
Plant Address	3570 Ridgely Road, Springfield, IL 62707
Utility	City of Springfield - (IL) (17828)
Latitude, Longitude	39.8233, -89.5891
Generation Dates on File	Jan 2001 to Dec 2025
Initial Operation Date	September 1997
Annual Generation	57.5 GWh
Fuel Types	Natural Gas : 99.2% Distillate Fuel Oil : 0.8%

Federal Energy Regulatory Commission (FERC) Information
FERC Cogeneration Status	No
FERC Small Power Producer Status	No
FERC Exempt Wholesale Generator Status	No

Regulatory Information
Regulatory Status	Regulated
NERC Region	SERC
Balancing Authority	Midcontinent Independent Transmission System Operator, Inc.. (MISO)
NAICS Code	Utilities (22)
Sector	Electric Utility (1)
Water Source
Ash Impoundment	No
Transmission / Distribution Owner	City of Springfield - (IL) (17828) IL
Grid Voltage	138.00 kV
Energy Storage	No

Natural Gas Information
Pipeline Name	PANHANDLE EASTERN PIPELINE COMPANY
Natural Gas Storage	No

* Data obtained from the 2025 EIA 860 Report

Technology	Natural Gas Fired Combustion Turbine
Prime Mover	Combustion Turbine
Ownership	Single Owner
RTO ISO LMP Node Designation	CWLP.INTERSA81
RTO ISO Location Designation For Reporting Wholesale Sales Data	CWLP.INTERSA81
Nameplate Capacity	138.6 MW
Nameplate Power Factor	0.9
Summer Capacity	109.6 MW
Winter Capacity	126 MW
Minimum Load	65 MW
Uprate/Derate Completed	No

Status	Operating
First Operation Date	September 1997
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Natural Gas / Distillate Fuel Oil
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	12H
Multiple Fuels	Yes
Cofire Fuels	No
Switch Between Oil And Natural Gas	Yes

Multifuel Details
Switch When Operating	Yes
Net Summer Capacity With Natural Gas	108.6 MW
Net Winter Capacity With Natural Gas	125 MW
Net Summer Capacity With Oil	107 MW
Net Winter Capacity With Oil	107 MW
Time To Switch From Gas To Oil	1H
Time To Switch From Oil To Gas	1H
Factors That Limit Switching	Yes
Storage Limits	Yes
Air Permit Limits	Yes

Owner Name	Address	Ownership
*We couldn't locate any owners for this plant*

Power plants with a similar annual net generation from Natural Gas.

Rank	Plant Name	Plant Location	Annual Generation
#1045	DTE Atlantic, LLC	Atlantic City, NJ	58.3 GWh
#1046	Princeton University Cogeneration	Princeton, NJ	81.0 GWh
#1047	Suwannee River	Live Oak, FL	58.5 GWh
#1048	Winchester Power Park	Winchester, TX	58.1 GWh
#1049	International Paper Riegelwood Mill	Riegelwood, NC	332.8 GWh
#1050	J K Spruce	San Antonio, TX	6.2 TWh
#1051	Brunswick Cellulose	Brunswick, GA	257.2 GWh
#1052	Kalkaska CT #1	Kalkaska, MI	57.6 GWh
#1053	Indiana Harbor E 5 AC Station	East Chicago, IN	648.8 GWh
#1054	Sylvamo Corporation Eastover Facility	Eastover, SC	541.9 GWh
#1056	R M Heskett	Mandan, ND	56.9 GWh
#1057	Westside Energy Station	Rochester, MN	56.9 GWh
#1058	Shakopee Energy Park	Shakopee, MN	56.8 GWh
#1059	Jonesboro City Water & Light Plant	Jonesboro, AR	56.6 GWh
#1060	Hyperion Treatment Plant CHP Plant	Playa del Rey, CA	156.1 GWh
#1061	Aberdeen CT	Aberdeen, SD	56.2 GWh
#1062	San Diego State University	San Diego, CA	57.6 GWh
#1063	NRG Rockford II Energy Center	Rockford, IL	56.1 GWh
#1064	Fredonia (WA)	Mt Vernon, WA	57.9 GWh
#1065	Bristol Myers Squibb New Brunswick	New Brunswick, NJ	56.0 GWh

Below are closest 20 power plants surrounding Interstate.

Plant Name	Plant Location	Annual Generation	Distance
Clark Solar 1	San Jose, IL	4.6 GWh	33.7 mi
Clark Solar 1A	San Jose, IL	4.5 GWh	33.7 mi
Dallman	Springfield, IL	823.0 GWh	4.8 mi
Double Back Diamond	Virden, IL	1.0 TWh	23 mi
Factory	Springfield, IL	132.0 MWh	2.6 mi
Five Oaks Gas Recovery	Taylorville, IL	23.7 GWh	21.2 mi
Glacier Sands Wind Power, LLC	Mason City, IL	641.6 GWh	30.8 mi
Hilltopper Wind Project	Mt. Pulaski, IL	495.0 GWh	18 mi
Kincaid Generation LLC	Kincaid, IL	1.9 TWh	16.8 mi
Lincoln Land Wind	TBD, IL	1.0 TWh	19.5 mi
Lotus Wind	Modesto, IL	185.2 GWh	28.9 mi
Moraine Sands Wind Power	Mason City, IL	572.6 GWh	29 mi
Mulligan Solar, LLC	Broadwell, IL	144.3 GWh	20.7 mi
Prairie Creek Solar	Jacksonville, IL	57.9 GWh	33.7 mi
Radfords Run Wind Farm	Maroa, IL	882.2 GWh	31.5 mi
Reynolds	Springfield, IL	179.0 MWh	3 mi
Salt Creek Township Solar, LLC	Mason City, IL	114.1 GWh	25.8 mi
Sugar Creek Wind One LLC	TBD, IL	576.6 GWh	23.4 mi
Top Hat Wind	Beason, IL	215.5 GWh	30 mi
Whitney Hill Wind Power LLC	Mt.Pulaski, IL	144.8 GWh	22.4 mi