How many biomass power plants are in Hawaii?

4, with 171 MW of nameplate capacity between them, spread over 2 counties. That is the EIA-860M operating count for 2026-07.

Is there a map of Hawaii biomass power plants?

Yes — the map above. Each dot is one biomass power plant, sized by nameplate capacity and placed at the coordinates EIA files for it.

Which is the largest biomass power plant in Hawaii?

H Power, at 100 MW. The table is sorted largest first, so the rest follow it.

Is there a biomass power plant near me in Hawaii?

The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.

Which grid operator runs Hawaii's biomass power plants?

No single ISO or RTO covers most of them. EIA files each plant against its own balancing authority, which in Hawaii is largely a vertically integrated utility rather than an organised market.

How current is this, and what is left out?

EIA-860M for 2026-07. Wood and wood waste, landfill gas, municipal solid waste and other waste biomass. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.

Biomass Power Plants in Hawaii

Every operating biomass power plant in Hawaii on EIA-860M for 2026-07: 4 plants, 16 generating units and 171 MW of nameplate capacity across 2 counties.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Plants: 4; 16 generating units
Nameplate capacity: 171 MW
Counties: 2
Grid operator: Mixed; no single ISO covers a majority

Map of biomass power plants in Hawaii

Every one of the 4 plants is drawn at the coordinate EIA files for it.

Loading map…

Biomass · 4

List of biomass power plants in Hawaii

Sort by any column. Capacity is nameplate, summed across every generating unit EIA lists at the site.

biomass power plants in Hawaii

H Power2 technologies	Covanta Honolulu Resource Recovery	Honolulu	100.2	3	1989	Operating
Schofield Generating StationOther Waste Biomass	Hawaiian Electric Co Inc	Honolulu	50.4	6	2018	Operating
Biomass to Energy Facility, Kauai2 technologies	Mahipapa LLC	Kauai	10.3	3	2014	Operating
HNL Emergency Power FacilityOther Waste Biomass	Hawaiian Electric Co Inc	Honolulu	10	4	2017	Operating

Largest biomass power plants in Hawaii

1H PowerHonolulu County, Hawaii100.2 MW
2Schofield Generating StationHonolulu County, Hawaii50.4 MW
3Biomass to Energy Facility, KauaiKauai County, Hawaii10.3 MW
4HNL Emergency Power FacilityHonolulu County, Hawaii10 MW

Biomass power plants by county in Hawaii

The county EIA files against each plant. It is the fastest way to find the plant nearest a given town.

County	Plants	Nameplate MW
Honolulu	3	160.6
Kauai	1	10.3

Biomass Power Plants in Hawaii: FAQ

How many biomass power plants are in Hawaii?: 4, with 171 MW of nameplate capacity between them, spread over 2 counties. That is the EIA-860M operating count for 2026-07.
Is there a map of Hawaii biomass power plants?: Yes — the map above. Each dot is one biomass power plant, sized by nameplate capacity and placed at the coordinates EIA files for it.
Which is the largest biomass power plant in Hawaii?: H Power, at 100 MW. The table is sorted largest first, so the rest follow it.
Is there a biomass power plant near me in Hawaii?: The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.
Which grid operator runs Hawaii's biomass power plants?: No single ISO or RTO covers most of them. EIA files each plant against its own balancing authority, which in Hawaii is largely a vertically integrated utility rather than an organised market.
How current is this, and what is left out?: EIA-860M for 2026-07. Wood and wood waste, landfill gas, municipal solid waste and other waste biomass. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.