gridprims

Power plant · EIA plant code 56258

Kapaia Power Station

Operator
Kauai Island Utility Cooperative
Location
Kauai, HI (county level only)
Balancing authority
Not reported
Nameplate capacity
39.1 MW
Summer capacity
27.5 MW

U.S. Energy Information Administration · Annual Electric Generator Report (Form EIA-860) · data for 2025 · as of Sep 10, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0

Generation in 2025

Net generation
190,113 MWh
Capacity factor
55.5%

Capacity factor is net generation divided by nameplate capacity times the hours each generator was in service that year, counted by month.

U.S. Energy Information Administration · Power Plant Operations Report (Form EIA-923) · data for 2025 · as of Sep 11, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0

Emissions

Carbon dioxide in 2023
129,523 metric tons
Carbon dioxide per MWh
1,595 lb/MWh

eGRID reports 142,774 short tons. One short ton is 0.90718474 metric tons.

Emissions are for 2023, the newest eGRID year. Generation is for 2025, the newest EIA-923 year.

U.S. Environmental Protection Agency · Emissions & Generation Resource Integrated Database (eGRID) · data for 2023 · as of Jun 16, 2025 · retrieved Oct 31, 2026 · CC-BY-4.0

Generators

Generators at Kapaia Power Station
GeneratorTechnologyEnergy sourceNameplateOperating sinceStatus
CT1All OtherOTH39.1 MW2002Operable · As of September 2026 (EIA-860M): (OP) Operating

U.S. Energy Information Administration · Monthly Update to the Annual Electric Generator Report (Form EIA-860M) · data for 2026-09 · as of Oct 23, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0

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