Shute Creek Facility
Lincoln County, Wyoming · EIA plant ID 56312 · Operator: Exxon Mobil Production Co
Nameplate144MWSummer 101 MW
Generators3in service
Net generation834GWh12 mo to Aug 2026
Capacity factor95%gas/coal/oil units, summer MW
Heat rate6,577Btu/kWhfossil units, electric fuel, HHV
First online2005Runs as baseload
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.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2005 | 473.8 | 87.8% | 13,811 |
| 2006 | 667.1 | 83.0% | 5,444 |
| 2007 | 669 | 83.2% | 5,444 |
| 2008 | 636.8 | 79.0% | 5,444 |
| 2009 | 637 | 79.2% | 5,444 |
| 2010 | 644.3 | 80.1% | 5,444 |
| 2011 | 614.5 | 76.4% | 5,444 |
| 2012 | 670.2 | 83.1% | 5,444 |
| 2013 | 658.9 | 81.9% | 5,444 |
| 2014 | 682.3 | 92.7% | 5,444 |
| 2015 | 889.6 | 95.1% | 5,393 |
| 2016 | 795.8 | 84.8% | 6,584 |
| 2017 | 829.5 | 92.3% | 6,583 |
| 2018 | 848.2 | 98.1% | 6,583 |
| 2019 | 676.8 | 78.3% | 6,587 |
| 2020 | 913.9 | 105.4% | 6,580 |
| 2021 | 836.3 | 96.7% | 6,579 |
| 2022 | 818.6 | 94.7% | 6,579 |
| 2023 | 857.1 | 99.1% | 6,577 |
| 2024 | 838.1 | 93.3% | 6,577 |
| 2025 | 870.9 | 98.9% | 6,576 |
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 |
|---|---|---|---|---|---|---|---|---|
| 021A | Natural Gas Fired Combustion Turbine | GT | 48 | 33.5 | May 2005 | Operating | — | coming soon |
| 021B | Natural Gas Fired Combustion Turbine | GT | 48 | 33.5 | May 2005 | Operating | — | coming soon |
| 021C | Natural Gas Fired Combustion Turbine | GT | 48 | 33.5 | May 2005 | Operating | — | coming soon |
Owner / operator
Operator: Exxon Mobil Production Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Exxon Mobil Production Co | 100.0% | 144 MW |
Nearby plants
Within 80 km.
| Fontenelle | 10 MW | 16.4 km |
| Genesis Alkali | 41 MW | 36.9 km |
| General Chemical | 30 MW | 42.4 km |
| Kemmerer Unit 1 | — | 43.5 km |
| Sweetwater Solar | 92 MW | 43.8 km |
| Naughton | 707 MW | 44.2 km |