Mark Center Solar Project
Defiance County, Ohio · EIA plant ID 65050 · Operator: Naturgy Solar Operation USA LLC
Nameplate94MWSummer 94 MW
Generators1in service
Net generation—GWh12 mo
Capacity factor—no 923 generation in the last 12 months
Heat rate—thermal plants only
First online2026
Capacity factor by year
Net MWh ÷ (summer MW × hours), primary-fuel units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
No capacity factor available.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| MRC1 | Solar Photovoltaic | PV | 94 | 94 | Sep 2026 | Operating | — | coming soon |
Owner / operator
Operator: Naturgy Solar Operation USA LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Naturgy Solar Operation USA LLC | 100.0% | 94 MW |
Nearby plants
Within 80 km.
| LafargeHolcim - Paulding Wind Project | 5 MW | 10.6 km |
| Auglaize Hydro | 4 MW | 18.6 km |
| Bryan Peaking | 11 MW | 20.5 km |
| Bryan Solar Field | 2 MW | 21 km |
| Sculpin Solar | — | 21.2 km |
| Bryan (OH) | 39 MW | 21.2 km |