Southcentral Power Project
Anchorage County, Alaska · EIA plant ID 57036 · Operator: Chugach Electric Assn Inc
Nameplate204MWSummer 170 MW
Generators4in service
Net generation1,068GWh12 mo to Dec 2025
Capacity factor72%gas/coal/oil units, summer MW
Heat rate7,541Btu/kWhfossil units, electric fuel, HHV
First online2013Runs 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) |
|---|---|---|---|
| 2013 | 947.4 | 63.7% | 7,536 |
| 2014 | 909.4 | 61.2% | 7,570 |
| 2015 | 868 | 58.4% | 7,649 |
| 2016 | 872 | 58.5% | 7,723 |
| 2017 | 862.9 | 58.1% | 7,793 |
| 2018 | 815.4 | 54.9% | 7,807 |
| 2019 | 797.9 | 53.7% | 7,775 |
| 2020 | 822.7 | 55.2% | 7,909 |
| 2021 | 1,041.7 | 70.1% | 7,750 |
| 2022 | 1,151.2 | 77.4% | 7,646 |
| 2023 | 905.3 | 60.9% | 8,629 |
| 2024 | 986.1 | 66.1% | 8,367 |
| 2025 | 1,067.6 | 71.8% | 7,541 |
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 | Natural Gas Fired Combined Cycle | CT | 48.8 | 39.8 | Jan 2013 | Operating | — | coming soon |
| 2 | Natural Gas Fired Combined Cycle | CT | 48.8 | 39.8 | Jan 2013 | Operating | — | coming soon |
| 3 | Natural Gas Fired Combined Cycle | CT | 48.8 | 39.8 | Jan 2013 | Operating | — | coming soon |
| 4 | Natural Gas Fired Combined Cycle | CA | 57.5 | 50.3 | Jan 2013 | Operating | — | coming soon |
Owner / operator
Operator: Chugach Electric Assn Inc. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Chugach Electric Assn Inc | 70.0% | 143 MW |
| Anchorage Municipal Light and Power | 30.0% | 61 MW |
Nearby plants
Within 80 km.
| International | retired | 0.4 km |
| International Battery Substation (IBSS) | 40 MW | 0.5 km |
| Anchorage 1 | 78 MW | 6.4 km |
| George M Sullivan Generation Plant 2 | 347 MW | 12.2 km |
| Fire Island Wind | 18 MW | 18.6 km |
| JBER Landfill Gas Power Plant | 12 MW | 20.6 km |