Prairie State Solar Project — Plant Summary
- EIA Plant ID
- 62420
- Capacity
- 99 MW
- Primary Fuel
- Solar
- Technology
- Solar Photovoltaic
- Status
- Operating
- Location
- Perry, IL
- Operating Since
- 2021
- Generators
- 1
- Operator
- Prairie State Solar, LLC
- Parent Company
- —
- Annual Generation
- 220,366 MWh
- Capacity Factor
- 25.4%
- Balancing Authority
- Midcontinent Independent Transmission System Operator, Inc..
- ISO/RTO
- MISO
- NERC Region
- SERC
Prairie State Solar Project
OperatingSolar
Ranked #23 of 325 Solar plants in IL#809 of 7447 nationally
99 MW Solar operating in Perry, IL — Midcontinent Independent Transmission System Operator, Inc..
EIAGEMWD
99 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2021
Operating Since
Location
Coordinates
38.1924, -89.5583
County
Perry, IL
Nearby Plants
- SV CSG Wagner A LLCSolar2 MW · 13.1 km
- Prairie State Generating StationBit. Coal1766 MW · 13.5 km
- PinckneyvilleNatural Gas380 MW · 20.6 km
Ownership & Operator
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Prairie State Solar, LLC | Ranger Power | — |
| Owner(s) | Prairie State Solar, LLC | Ranger Power [100%] | — |
| Status | Operating | operating | — |
Ownership Chain
GEM identifies the owner as Ranger Power [100%]
This entity is not yet in the GEM ownership database — chain unavailable.
About
The Prairie State Solar Project is a 99 MW solar photovoltaic power plant located in Perry County, Illinois. The plant began operating in 2021 and is owned and operated by Prairie State Solar, LLC. It consists of a single generator utilizing single-axis tracking technology. The plant is interconnected to the Midcontinent Independent Transmission System Operator, Inc. (MISO) balancing authority within the SERC Reliability Corporation NERC region.
In its most recent year of operation, the Prairie State Solar Project generated 220,366 MWh of electricity, achieving a capacity factor of 25.4%. The plant holds the rank of 22 out of 320 power plants in Illinois and 643 out of 7108 plants nationally. Financial data indicates that the plant has a power purchase agreement (PPA) price of $30.95 per MWh.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
SERC
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc..
Grid Voltage
138 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
9.0K MWh
Latest Month
220.4K MWh
Annual Generation
25.4%
Capacity Factor
Jan 2023 – Dec 2025
Financial DataBeta
Source: LBNL Utility-Scale SolarHIGH
$29.4/MWh
LCOE (Levelized Cost)
$31.0/MWh
PPA Price
$28.2/MWh
Energy Value
Pricing & Market Data
HIGH confidenceMarket Position
ISO/RTO Market
MISO
LMP Node
—
Pricing Hub
ILLINOIS.HUB
Node Source
OSM spatial match
Aster SubstationSubstation
News & Articles (10)Beta
General
Illinois cities move to cut ties with a massive coal plant
Across Illinois, dozens of communities are locked into contracts to buy power from the state's biggest coal plant for decades to come.
Canary Media·4 weeks ago
Deals·tax equity
Investments in community solar continue despite federal headwinds
A $275 million tax equity investment will go toward between 25 and 30 community solar projects across five states.
pv magazine USA·8 months ago
Industry·corporate
Winnetka signs contentious 20-year extension with coal-dependent electric provider
Critics point to Prairie State as a big polluter, but Trump cuts raise questions about stability of renewable energy.
Winnetka (buyer)Prairie State (seller)
Chicago Tribune·9 months ago
Industry·technology
Illinois powers up a new generation of community solar 2.0
A state that's considered a leader in US community solar policy powered up the first of its new type of community solar projects, which was years in the making.
pv magazine USA·9 months ago
Last updated 2026-03-26
View all 10 articles