Wailuku River Hydroelectric

Hilo Forest Reserve, Hilo, HI 96720

Plant Summary Information

Wailuku River Hydroelectric is ranked #44 out of 65 power plants in Hawaii in terms of total annual net electricity generation.

Wailuku River Hydroelectric is comprised of 2 generators and generated 2.1 GWh during the 3-month period between March 2025 to June 2025.

Plant NameWailuku River Hydroelectric
Utility NameWailuku Holding Company LLC
LocationHawaii County, HI
Initial Operation DateMay 1993
Last Update Jun 2025
Annual Generation 16.9 GWh
Annual Consumption 65.1 k MMBtu
Ranked #5,423 out of 12,327 Power Plants Nationwide
Ranked #793 out of 1,323 Water Power Plants Nationwide
Ranked #44 out of 65 Hawaii Power Plants
Ranked #3 out of 5 Hawaii Water Power Plants
Fuel Types Water

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Monthly Net Generation for Wailuku River Hydroelectric

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Wailuku River Hydroelectric Details

Summary Information
Plant NameWailuku River Hydroelectric (54827)
Plant AddressHilo Forest Reserve, Hilo, HI 96720
UtilityWailuku Holding Company LLC (54809)
Latitude, Longitude19.71299, -155.14857
Generation Dates on FileJan 2001 to Jun 2025
Initial Operation DateMay 1993
Annual Generation 16.9 GWh
Fuel Types Water
 
Federal Energy Regulatory Commission (FERC) Information
FERC Cogeneration StatusNo
FERC Small Power Producer StatusYes
FERC Small Power Producer Docket Number06-70-000.
FERC Exempt Wholesale Generator StatusNo
Regulatory Information
Regulatory StatusNon-Regulated
NERC Region
Balancing Authority ()
NAICS CodeUtilities (22)
Sector IPP Non-CHP (2)
Water SourceWailuku River
Ash Impoundment No
Transmission / Distribution OwnerHawaii Electric Light Co Inc (8287) HI
Grid Voltage 69.00 kV
Energy StorageNo

Generator 8101 Details Operating May 1993

TechnologyConventional Hydroelectric
Prime MoverHydroelectric Turbine
OwnershipSingle Owner
Nameplate Capacity5.2 MW
Nameplate Power Factor0.85
Summer Capacity4.9 MW
Winter Capacity4.8 MW
Minimum Load0.1 MW
Uprate/Derate Completed No
StatusOperating
First Operation DateMay 1993
Combined Heat & Power No
Sector NameIPP Non-CHP (2)
Energy SourceWater
Solid Fuel Gasification No
Carbon Capture TechnologyNo
Time From Cold Shutdown To Full Load10M
Multiple FuelsNo

Generator 8102 Details Operating May 1993

TechnologyConventional Hydroelectric
Prime MoverHydroelectric Turbine
OwnershipSingle Owner
Nameplate Capacity5.2 MW
Nameplate Power Factor0.85
Summer Capacity4.9 MW
Winter Capacity4.8 MW
Minimum Load0.1 MW
Uprate/Derate Completed No
StatusOperating
First Operation DateMay 1993
Combined Heat & Power No
Sector NameIPP Non-CHP (2)
Energy SourceWater
Solid Fuel Gasification No
Carbon Capture TechnologyNo
Time From Cold Shutdown To Full Load10M
Multiple FuelsNo

Wailuku River Hydroelectric Plant Owners

Owner NameAddressGeneratorOwnership
We couldn't locate any owners for this plant

Power Plants with Similar Net Generation

Power plants with a similar annual net generation from Water.

RankPlant NamePlant LocationAnnual Generation
#783Spirit MountainCody, WY17.3 GWh
#784Rolfe Canal HydroPenacook, NH17.3 GWh
#785Tri-County Water Hydropower ProjectRidgway, CO17.2 GWh
#786Rapide CrocheKaukana, WI17.2 GWh
#787Calligan Creek Hydroelectric ProjectSnoqualmie, WA17.2 GWh
#788Buchanan Dam (TX)Buchanan Dam, TX17.1 GWh
#789Deep CreekOakland, MD17.1 GWh
#790Clark FallsMilton, VT17.0 GWh
#791ShawmutShawmut, ME17.0 GWh
#792Bishop Creek 5Bishop, CA16.9 GWh
#794TemescalCorona, CA16.8 GWh
#795Gorge 18South Burlington, VT16.7 GWh
#796Clear LakeBuhl, ID16.7 GWh
#797Pilot KnobWinterhaven, CA16.7 GWh
#798LoudOscoda, MI16.7 GWh
#799Power CreekCordova, AK16.7 GWh
#800Penacook Lower FallsBoscawen, NH16.6 GWh
#801RogersBig Rapids, MI16.4 GWh
#802Bishop Creek 2Bishop, CA16.4 GWh
#803High Falls (WI)Town of Stephenson, WI16.4 GWh

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