Dave Johnston
Converse County, Wyoming · EIA plant ID 4158 · Operator: PacifiCorp
Nameplate817MWSummer 745 MW
Generators4in service
Net generation2,691GWh12 mo to Aug 2026
Capacity factor41%gas/coal/oil units, summer MW
Heat rate11,806Btu/kWhfossil units, electric fuel, HHV
First online1959Runs 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) |
|---|---|---|---|
| 2001 | 5,633.7 | 84.4% | 11,304 |
| 2002 | 5,759.8 | 86.3% | 11,363 |
| 2003 | 5,302.5 | 79.4% | 11,258 |
| 2004 | 5,824.6 | 87.0% | 11,073 |
| 2005 | 5,684 | 85.2% | 10,967 |
| 2006 | 5,776.8 | 86.5% | 11,140 |
| 2007 | 5,696.9 | 85.3% | 11,428 |
| 2008 | 5,638.8 | 84.2% | 11,193 |
| 2009 | 5,017.8 | 75.2% | 11,393 |
| 2010 | 4,707.3 | 70.5% | 11,209 |
| 2011 | 5,058.9 | 75.8% | 11,219 |
| 2012 | 4,906.5 | 73.5% | 11,258 |
| 2013 | 5,295.1 | 79.5% | 11,284 |
| 2014 | 5,183.4 | 77.9% | 11,244 |
| 2015 | 5,141 | 77.2% | 11,317 |
| 2016 | 5,088.5 | 76.2% | 11,263 |
| 2017 | 4,520 | 67.9% | 11,128 |
| 2018 | 4,800.4 | 72.1% | 11,163 |
| 2019 | 4,686.4 | 71.8% | 11,166 |
| 2020 | 4,325.6 | 66.1% | 11,208 |
| 2021 | 3,601.2 | 55.2% | 11,474 |
| 2022 | 3,581.9 | 54.9% | 11,562 |
| 2023 | 3,537.4 | 54.2% | 12,030 |
| 2024 | 3,839 | 58.7% | 11,902 |
| 2025 | 4,273.5 | 65.5% | 11,687 |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Conventional Steam Coal | ST | 113.6 | 93 | Feb 1959 | Operating | — | coming soon |
| 2 | Conventional Steam Coal | ST | 113.6 | 102 | Jan 1961 | Operating | — | coming soon |
| 3 | Conventional Steam Coal | ST | 229.5 | 220 | Dec 1964 | Operating · retirement planned | Dec 2027 | coming soon |
| 4 | Conventional Steam Coal | ST | 360 | 330 | Jul 1972 | Operating | — | coming soon |
Owner / operator
Operator: PacifiCorp. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| PacifiCorp | 100.0% | 817 MW |
Nearby plants
Within 80 km.
| Dutchman Solar generation and BESS | — | 5 km |
| Top of the World Windpower Project | 200 MW | 9.8 km |
| Pioneer Wind Park, LLC | 80 MW | 14.2 km |
| Glenrock | 166 MW | 20.6 km |
| Rolling Hills | 116 MW | 25.2 km |
| Campbell Hill Windpower | 99 MW | 26.7 km |