Wainiha Hydro
Kauai County, Hawaii · EIA plant ID 10413 · Operator: BBCP Kauai Operating LLC
Nameplate4MWSummer 3 MW
Generators2in service
Net generation18GWh12 mo to Aug 2026
Capacity factor62%hydro units, summer MW
Heat rate—thermal plants only
First online1906
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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 | 28.1 | 93.7% | — |
| 2002 | 28.1 | 93.7% | — |
| 2004 | 24.7 | 82.2% | — |
| 2005 | 21.7 | 72.4% | — |
| 2006 | 28.9 | 96.6% | — |
| 2007 | 26 | 87.2% | — |
| 2008 | 27 | 90.5% | — |
| 2009 | 22.7 | 76.3% | — |
| 2010 | 19 | 63.9% | — |
| 2011 | 24.1 | 81.0% | — |
| 2012 | 25.2 | 84.5% | — |
| 2013 | 23.1 | 77.7% | — |
| 2014 | 25.3 | 84.8% | — |
| 2015 | 25.2 | 84.7% | — |
| 2016 | 24.5 | 82.1% | — |
| 2017 | 21.5 | 72.1% | — |
| 2018 | 20.8 | 69.9% | — |
| 2019 | 20.5 | 69.0% | — |
| 2020 | 21 | 70.2% | — |
| 2021 | 20.6 | 69.1% | — |
| 2022 | 23.3 | 78.3% | — |
| 2023 | 21.5 | 72.3% | — |
| 2024 | 21.8 | 72.9% | — |
| 2025 | 19.1 | 64.1% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| WAIA | Conventional Hydroelectric | HY | 1.8 | 1.7 | Jan 1906 | Operating | — | coming soon |
| WAIB | Conventional Hydroelectric | HY | 1.8 | 1.7 | Jan 1910 | Operating | — | coming soon |
Owner / operator
Operator: BBCP Kauai Operating LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| BBCP Kauai Operating LLC | 100.0% | 4 MW |
Nearby plants
Within 80 km.
| Kapaa Photovoltaic Project | 1 MW | 26.5 km |
| KRS I Anahola Solar Hybrid | 12 MW | 27 km |
| Biomass to Energy Facility, Kauai | 10 MW | 27.5 km |
| KIUC Kapaia PV and BA Storage Project Hybrid | 28 MW | 28.7 km |
| Kapaia Power Station | 39 MW | 29 km |
| Kalaheo Hydro | 2 MW | 29.1 km |