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Waimea

Other power plant · Hawaii County, Hawaii

Nameplate capacity
7.5 MW
Rank in Hawaii
#52
of 76 plants
In service since
1970
December 1970

Details

Primary fuel
Other
Technology
Petroleum Liquids
Operator
Hawaii Electric Light Co Inc
County
Hawaii County
Generating units
3
Share of state capacity
0.20%
Rank among other plants in Hawaii
#23 of 25
EIA plant code
768

Generating units

Individual generating units at Waimea
UnitTechnologyNameplateSummerOnlineStatus
12Petroleum Liquids2.5 MW2.5 MW1970Operating
13Petroleum Liquids2.5 MW2.5 MW1972Operating
14Petroleum Liquids2.5 MW2.5 MW1972Operating

Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.

Similarly sized plants in Hawaii

About this data

From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 7.5 MW solar plant and a 7.5 MW nuclear plant have the same entry here and produce very different amounts of electricity.

“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Hawaii power plants · What Hawaii actually generates