Kaheka HydroOut of service
Maui County, Hawaii · EIA plant ID 55864 · Operator: Mahi Pono LLC
Nameplate5MWSummer 5 MW
Generators3in service
Net generation0GWh12 mo to Dec 2025
Capacity factor0%hydro units, summer MW
Heat rate—thermal plants only
First online1925
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) |
|---|---|---|---|
| 2003 | 9.5 | 24.1% | — |
| 2004 | 18.6 | 47.1% | — |
| 2005 | 19.7 | 50.1% | — |
| 2006 | 26.7 | 67.6% | — |
| 2007 | 12.6 | 32.0% | — |
| 2008 | 9.3 | 23.5% | — |
| 2009 | 17.9 | 45.5% | — |
| 2010 | 11.6 | 29.4% | — |
| 2011 | 11 | 27.9% | — |
| 2012 | 14.3 | 36.3% | — |
| 2013 | 8.2 | 20.9% | — |
| 2014 | 17.8 | 45.2% | — |
| 2015 | 17.9 | 45.4% | — |
| 2016 | 2.7 | 6.9% | — |
| 2017 | 3.2 | 8.2% | — |
| 2018 | 3.6 | 9.1% | — |
| 2019 | 0.8 | 2.1% | — |
| 2020 | 1.3 | 3.2% | — |
| 2021 | 0.6 | 1.6% | — |
| 2022 | 0 | 0.0% | — |
| 2023 | 0 | 0.0% | — |
| 2024 | 0 | 0.0% | — |
| 2025 | 0 | 0.0% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| KAH1 | Conventional Hydroelectric | HY | 1.5 | 1.5 | Jan 1925 | Operating (Out of service) | — | coming soon |
| KAH2 | Conventional Hydroelectric | HY | 1.5 | 1.5 | Jan 1925 | Operating (Out of service) | — | coming soon |
| KAH3 | Conventional Hydroelectric | HY | 1.5 | 1.5 | Jan 1925 | Operating (Out of service) | — | coming soon |
Owner / operator
Operator: Mahi Pono LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Mahi Pono LLC | 100.0% | 5 MW |
Nearby plants
Within 80 km.
| Paia Hydroelectric Plant | 1 MW | 2 km |
| Kahului | 34 MW | 11 km |
| Kuihelani Substation | 1 MW | 12.6 km |
| Kihei Solar Farm | 3 MW | 13.2 km |
| AES Maui Kuihelani Solar Hybrid | 120 MW | 14.2 km |
| Maalaea | 230 MW | 17.2 km |