Last Chance
Caribou County, Idaho · EIA plant ID 987 · Operator: PacifiCorp
Nameplate2MWSummer 1 MW
Generators3in service
Net generation3GWh12 mo to Dec 2025
Capacity factor28%hydro units, summer MW
Heat rate—thermal plants only
First online1984
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), hydro 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.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 3.9 | 31.7% | — |
| 2002 | 3.8 | 31.0% | — |
| 2003 | 3.4 | 27.5% | — |
| 2004 | 1.5 | 12.1% | — |
| 2005 | 2.1 | 16.8% | — |
| 2006 | 2.9 | 23.8% | — |
| 2007 | 3 | 24.5% | — |
| 2008 | 2.5 | 20.2% | — |
| 2009 | 4 | 32.9% | — |
| 2010 | 3.2 | 26.4% | — |
| 2011 | 6.9 | 56.6% | — |
| 2012 | 3.8 | 31.2% | — |
| 2013 | 3.3 | 26.6% | — |
| 2014 | 3.1 | 25.2% | — |
| 2015 | 1.9 | 15.7% | — |
| 2016 | 1.2 | 9.4% | — |
| 2017 | 3.7 | 30.4% | — |
| 2018 | 4.6 | 37.1% | — |
| 2019 | 4.7 | 38.3% | — |
| 2020 | 6.2 | 50.6% | — |
| 2021 | 4 | 32.6% | — |
| 2022 | 3.5 | 28.3% | — |
| 2023 | 3.4 | 27.9% | — |
| 2024 | 4.5 | 36.3% | — |
| 2025 | 3.5 | 28.5% | — |
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 Hydroelectric | HY | 0.2 | 0.2 | Feb 1984 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 0.5 | 0.4 | Feb 1984 | Operating | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 1 | 0.8 | Feb 1984 | 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% | 2 MW |
Nearby plants
Within 80 km.
| Soda | 15 MW | 4.6 km |
| Grace | 33 MW | 10.4 km |
| Marsh Valley Development | 2 MW | 36.4 km |
| Oneida | 30 MW | 37.5 km |
| Mink Creek Hydro | 3 MW | 38.2 km |
| Bannock County LFG to Energy | 3 MW | 57.7 km |