Posey Solar — Plant Summary
- EIA Plant ID
- 66780
- Capacity
- 191 MW
- Primary Fuel
- Solar
- Technology
- Solar Photovoltaic
- Status
- Operating
- Location
- Posey, IN
- Operating Since
- 2025
- Generators
- 1
- Operator
- Southern Indiana Gas & Elec Co
- Parent Company
- CenterPoint Energy
- Annual Generation
- 269,806 MWh
- Capacity Factor
- 24.0%
- Balancing Authority
- Midcontinent Independent Transmission System Operator, Inc..
- ISO/RTO
- MISO
- NERC Region
- RFC
Posey Solar
OperatingSolar
Ranked #23 of 140 Solar plants in IN#393 of 7447 nationally
191 MW Solar operating in Posey, IN — Midcontinent Independent Transmission System Operator, Inc..
EIAGEM
191 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2025
Operating Since
Location
Coordinates
37.9267, -87.7289
County
Posey, IN
Nearby Plants
- A B BrownNatural Gas673 MW · 2.7 km
- SABIC Innovative Plastics Mt. VernonNatural Gas108 MW · 17.8 km
- Oak Hill Solar ArraySolar2 MW · 18.6 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 | Southern Indiana Gas & Elec Co | CenterPoint Energy | — |
| Owner(s) | Southern Indiana Gas & Elec Co | CenterPoint Energy | — |
| Status | Operating | operating | — |
Ownership Chain
About
Posey Solar is a 191 MW solar photovoltaic power plant located in Posey County, Indiana. The plant, which began operating in 2025, is owned by CenterPoint Energy and operated by Southern Indiana Gas & Electric Co. It utilizes a single generator and fixed-tilt solar tracking technology. Posey Solar ranks as the 20th largest solar plant in Indiana (out of 35) and 276th nationally (out of 639).
The plant's latest annual generation was 269,806 MWh, resulting in a capacity factor of 24.0%. Posey Solar operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the ReliabilityFirst Corporation (RFC) NERC region.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
RFC
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc..
Grid Voltage
345 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Generation
13.9K MWh
Latest Month
269.8K MWh
Annual Generation
24.0%
Capacity Factor
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidenceMarket Position
ISO/RTO Market
MISO
LMP Node
SIGE.POSYSLR1
Pricing Hub
INDIANA.HUB
Location Type
Generation Node
Node Source
Curated node match
News & Articles (10)Beta
General
CenterPoint Energy (NYSE: CNP) details 2025 results for Indiana utility
CenterPoint Energy releases 2025 audited financials for Southern Indiana Gas and Electric, showing $921M revenue, $150M net income and heavy...
Stock Titan·6 days ago
Grid·capacity addition
Averon Energy’s Posey Solar Farm in Indiana with a 35-Year Lifespan
Posey solar project is a large scale farm in Posey County, Indiana. Construction began in mid-2024 under developer Arevon Energy in...
Averon Energy (developer)
constructionreviewonline.com·3 months ago
General
CenterPoint to turn food and yard waste into renewable natural gas for Minnesota customers
Houston-based CenterPoint Energy is turning to scraps to provide its Minnesota customers with a lower-carbon alternative to natural gas.
Houston Chronicle·7 months ago
General
Irby Construction, SMT Energy, and CenterPoint Energy Break Ground on 160 MW / 320 MWh Battery Storage Project in Houston
Irby Construction Company, a premier utility infrastructure solutions provider, has joined forces with SMT Energy and CenterPoint Energy to officially break...
ESS News·10 months ago
Last updated 2026-03-26
View all 10 articles