MPH ElwoodOut of service
Will County, Illinois · EIA plant ID 69979 · Operator: MPH Elwood, LLC
×768 MW natural gas retired since 2020 (latest Jun 2026)
Nameplate384MWSummer 300 MW
Generators2in service
Net generation2GWh12 mo to Aug 2026
Capacity factor0%gas/coal/oil units, summer MW
Heat rate12,625Btu/kWhfossil units, electric fuel, HHV
First online2001Runs as rarely runs
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
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 |
|---|---|---|---|---|---|---|---|---|
| GT8 | Natural Gas Fired Combustion Turbine | GT | 192 | 150 | Aug 2001 | Operating (Out of service) | — | coming soon |
| GT9 | Natural Gas Fired Combustion Turbine | GT | 192 | 150 | Jul 2001 | Operating (Out of service) | — | coming soon |
| GT1 | Natural Gas Fired Combustion Turbine | GT | 192 | 150 | Jul 1999 | Retired Jun 2026 | — | coming soon |
| GT2 | Natural Gas Fired Combustion Turbine | GT | 192 | 150 | Jul 1999 | Retired Jun 2026 | — | coming soon |
| GT3 | Natural Gas Fired Combustion Turbine | GT | 192 | 150 | Jul 1999 | Retired May 2026 | — | coming soon |
| GT4 | Natural Gas Fired Combustion Turbine | GT | 192 | 150 | Jul 1999 | Retired May 2026 | — | coming soon |
Owner / operator
Operator: MPH Elwood, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| MPH Elwood, LLC | 100.0% | 384 MW |
Nearby plants
Within 80 km.
| Elwood Energy LLC | 576 MW | 0.2 km |
| Jackson Generation, LLC | 1,289 MW | 1 km |
| ExxonMobil Oil Joliet Refinery | 43 MW | 5.6 km |
| Jake Energy Storage Center | retired | 5.9 km |
| Joliet 9 | retired | 6.3 km |
| Joliet 29 | retired | 6.4 km |