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250 MW Solar operating in Hardin, OH
250 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2025
Operating Since
Coordinates
40.6823, -83.7939
County
Hardin, OH
Nearby Plants
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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 | Hardin Solar Energy III | Invenergy LLC | — |
| Owner(s) | Hardin Solar Energy III | Invenergy LLC | — |
| Status | Operating | operating | — |
Hardin Solar III is a 250 MW solar photovoltaic power plant located in Hardin County, Ohio. The plant, owned and operated by Hardin Solar Energy III, began commercial operation in 2025. It utilizes a fixed-tilt solar tracking system. The plant is interconnected to the PJM Interconnection, LLC balancing authority, within the RFC NERC region.
In its latest year of operation, Hardin Solar III generated 470,630 MWh of electricity, achieving a capacity factor of 25.6%. Hardin Solar III ranks as the 5th largest solar plant in Ohio out of 31, and 137th nationally out of 639. The plant has been the subject of 3 news articles, all categorized as industry news.
Generated from EIA, GEM, and public data sources
ISO/RTO
PJM
Market
ISO/RTO Member
NERC Region
RFC
Balancing Authority
PJM Interconnection, LLC (PJM)
Grid Voltage
345.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
18.7K MWh
Latest Month
470.6K MWh
Annual Generation
25.6%
Capacity Factor
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$1,606/kW
Est. Construction Cost
Total estimated cost: $401.5M
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Request a demo →Market Position
ISO/RTO Market
PJM
LMP Node
HARDIN 34.5 KV HRDN12SP
Pricing Hub
AEP-DAYTON HUB
Location Type
Generation Node
Node Source
Curated node match
Last updated 2026-04-19
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