Nikiski Co-Generation
Kenai Peninsula County, Alaska · EIA plant ID 55966 · Operator: Homer Electric Assn Inc
Nameplate81MWSummer 76 MW
Generators2in service
Net generation445GWh12 mo to Dec 2025
Capacity factor67%gas/coal/oil units, summer MW
Heat rate8,504Btu/kWhfossil units, electric fuel, HHV
First online1986Runs as baseload
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) |
|---|---|---|---|
| 2002 | 0 | — | — |
| 2003 | 284.7 | 85.8% | 12,427 |
| 2004 | 307.9 | 92.5% | 12,343 |
| 2005 | 296.6 | 89.3% | 12,469 |
| 2006 | 264 | 79.5% | 12,498 |
| 2007 | 331.8 | 100.0% | 12,414 |
| 2008 | 319.8 | 96.0% | 10,412 |
| 2009 | 295 | 88.8% | 12,477 |
| 2010 | 265.2 | 79.9% | 12,844 |
| 2011 | 276.3 | 83.2% | 14,244 |
| 2012 | 239.1 | 71.8% | 14,163 |
| 2013 | 263.1 | 51.7% | 10,286 |
| 2014 | 371.3 | 54.4% | 8,630 |
| 2015 | 395 | 57.9% | 9,002 |
| 2016 | 398.9 | 58.3% | 8,767 |
| 2017 | 452.7 | 66.3% | 8,873 |
| 2018 | 404.7 | 59.3% | 8,848 |
| 2019 | 239.5 | 36.0% | 9,971 |
| 2020 | 404.8 | 60.7% | 8,877 |
| 2021 | 399.4 | 60.1% | 8,933 |
| 2022 | 432.1 | 65.0% | 8,855 |
| 2023 | 416.8 | 62.7% | 8,898 |
| 2024 | 414.8 | 62.2% | 8,683 |
| 2025 | 445 | 66.9% | 8,504 |
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 |
|---|---|---|---|---|---|---|---|---|
| GT1 | Natural Gas Fired Combined Cycle | CT | 40.8 | 37.9 | Sep 1986 | Operating | — | coming soon |
| ST1 | Natural Gas Fired Combined Cycle | CA | 40 | 38 | Jul 2013 | Operating | — | coming soon |
Owner / operator
Operator: Homer Electric Assn Inc. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Homer Electric Assn Inc | 100.0% | 81 MW |
Nearby plants
Within 80 km.
| Tesoro Kenai Cogeneration Plant | 9 MW | 0.2 km |
| Agrium Kenai Nitrogen Operations | 13 MW | 0.4 km |
| Bernice Lake | 77 MW | 2 km |
| Soldotna | 97 MW | 28.6 km |
| Beluga | 312 MW | 59.6 km |
| Fire Island Wind | 18 MW | 79.4 km |