HNL Emergency Power Facility
Honolulu County, Hawaii · EIA plant ID 58469 · Operator: Hawaiian Electric Co Inc
Nameplate10MWSummer 10 MW
Generators4in service
Net generation3GWh12 mo to Dec 2025
Capacity factor3%other units, summer MW
Heat rate—Btu/kWhfossil units, electric fuel, HHV
First online2017
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), other 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) |
|---|---|---|---|
| 2017 | 0.7 | 1.0% | 9,817 |
| 2018 | 0.6 | 0.7% | — |
| 2019 | 0.7 | 0.8% | — |
| 2020 | 1.3 | 1.5% | — |
| 2021 | 1.7 | 1.9% | — |
| 2022 | 1.3 | 1.5% | — |
| 2023 | 2.5 | 2.8% | — |
| 2024 | 5.8 | 6.6% | — |
| 2025 | 2.6 | 2.9% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| AP1 | Other Waste Biomass | IC | 2.5 | 2.5 | Jun 2017 | Operating | — | coming soon |
| AP2 | Other Waste Biomass | IC | 2.5 | 2.5 | Jun 2017 | Operating | — | coming soon |
| AP3 | Other Waste Biomass | IC | 2.5 | 2.5 | Jun 2017 | Operating | — | coming soon |
| AP4 | Other Waste Biomass | IC | 2.5 | 2.5 | Jun 2017 | Operating | — | coming soon |
Owner / operator
Operator: Hawaiian Electric Co Inc. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| State of Hawaii Department of Transportation, Airport Division | 100.0% | 10 MW |
Nearby plants
Within 80 km.
| Puuloa Solar | — | 1.9 km |
| Puuloa Energy | — | 3.5 km |
| Pearl City Peninsula Solar Park | 1 MW | 6.7 km |
| Waiau | 375 MW | 7.3 km |
| Waipio Peninsula | 11 MW | 7.5 km |
| West Loch Solar One | 20 MW | 9.9 km |