Mammoth Central Solar ProjectUnder construction
Pulaski County, Indiana · EIA plant ID 66546 · Operator: Mammoth Central LLC
300 MW under construction (Solar Photovoltaic), first expected Nov 2026 · EIA-860M
Nameplate—MWSummer — MW
Generators0in service · 300 MW building
Net generation—GWh12 mo
Capacity factor—no 923 generation in the last 12 months
Heat rate—thermal plants only
First online—
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 |
|---|---|---|---|---|---|---|---|---|
| MMTHC | Solar Photovoltaic | PV | 300 | 300 | planned Nov 2026 | Under construction | — | coming soon |
Owner / operator
Operator: Mammoth Central LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
Nearby plants
Within 80 km.
| Mammoth Central II Solar Facility | — | 1.6 km |
| Mammoth South Solar Project | — | 1.8 km |
| Mayapple Solar 1 | — | 4 km |
| IMPA Winamac Solar Park | 3 MW | 12.1 km |
| Mammoth North Solar | 400 MW | 13.8 km |
| Liberty I & II LFGTE | 13 MW | 22.8 km |