Twin Reservoirs

581 Mill Creek Road, Walla Walla, WA 99362

Plant Summary Information

Twin Reservoirs is ranked #63 out of 68 hydroelectric power plants in Washington in terms of total annual net electricity generation.

Twin Reservoirs is comprised of 1 generator and generated 1.4 GWh during the 3-month period between September 2024 to December 2024.

Plant NameTwin Reservoirs
Utility NameWalla Walla City of
LocationWalla Walla County, WA
Initial Operation DateApril 1988
Last Update Dec 2024
Annual Generation 7.3 GWh
Annual Consumption 27.1 k MMBtu
Ranked #7,044 out of 12,288 Power Plants Nationwide
Ranked #1,026 out of 1,323 Water Power Plants Nationwide
Ranked #118 out of 131 Washington Power Plants
Ranked #63 out of 68 Washington Water Power Plants
Fuel Types Water

Map of Twin Reservoirs

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Monthly Net Generation for Twin Reservoirs

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Twin Reservoirs Details

Summary Information
Plant NameTwin Reservoirs (50382)
Plant Address581 Mill Creek Road, Walla Walla, WA 99362
UtilityWalla Walla City of (20032)
Latitude, Longitude46.08833, -118.25472
Generation Dates on FileJan 2001 to Dec 2024
Initial Operation DateApril 1988
Annual Generation 7.3 GWh
Fuel Types Water
 
Federal Energy Regulatory Commission (FERC) Information
FERC Cogeneration StatusNo
FERC Small Power Producer StatusYes
FERC Small Power Producer Docket Number86-342-000
FERC Exempt Wholesale Generator StatusNo
Regulatory Information
Regulatory StatusNon-Regulated
NERC RegionWECC
Balancing AuthorityBonneville Power Administration (BPAT)
NAICS CodeUtilities (22)
Sector IPP Non-CHP (2)
Water SourceMill Creek
Ash Impoundment No
Transmission / Distribution OwnerColumbia Rural Elec Assn, Inc (4041) WA
Grid Voltage 14.40 kV
Energy StorageNo

Generator GEN1 Details Operating April 1988

TechnologyConventional Hydroelectric
Prime MoverHydroelectric Turbine
OwnershipSingle Owner
Nameplate Capacity2.2 MW
Nameplate Power Factor0.9
Summer Capacity1.8 MW
Winter Capacity1.5 MW
Minimum Load0.4 MW
Uprate/Derate Completed No
StatusOperating
First Operation DateApril 1988
Combined Heat & Power No
Sector NameIPP Non-CHP (2)
Energy SourceWater
Solid Fuel Gasification No
Carbon Capture TechnologyNo
Time From Cold Shutdown To Full Load1H
Multiple FuelsNo

Twin Reservoirs Plant Owners

Owner NameAddressOwnership
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
#1016HalseyAuburn, CA7.6 GWh
#1017Wappinger Falls HydroelectricWappinger Falls, NY7.6 GWh
#1018MacombMalone, NY7.5 GWh
#1019NewcastleAuburn, CA7.5 GWh
#1020Superior FallsIronwood, MI7.5 GWh
#1021Sibley MillAugusta, GA7.5 GWh
#1022Bear CreekShingletown, CA7.4 GWh
#1023Pembroke HydroSuncook, NH7.4 GWh
#1024Slate CreekLakehead, CA7.3 GWh
#1025J S EastwoodShaver Lake, CA7.3 GWh
#1027MC6 Hydro FacilityKuna, ID7.3 GWh
#1028LundyLee Vining, CA7.3 GWh
#1029Peters Drive PlantHood River, OR7.3 GWh
#1030International Paper Jay HydroJay, ME7.1 GWh
#1031Saluda DamGreenville, SC7.1 GWh
#1032Turlock LakeHickman, CA7.0 GWh
#1033Roaring Creek Water PowerMontgomery Creek, CA7.0 GWh
#1034Stillwater Hydro StationStillwater, ME7.0 GWh
#1035Oconto Falls LowerOconto Falls, WI6.9 GWh
#1036West CharlestonWest Charleston, VT6.9 GWh

Nearby Power Plants

Below are closest 20 power plants surrounding Twin Reservoirs.

Plant NamePlant LocationAnnual GenerationDistance
Chopin Wind LLCMilton-Freewater, OR28.8 GWh17.5 mi
Combine Hills IMilton-Freewater, OR73.0 GWh19 mi
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Eurus Combine Hills Turbine Ranch 2Milton Freewater, OR163.6 GWh19 mi
FPL Energy Vansycle LLC (OR)Touchet, OR257.0 GWh27.4 mi
FPL Energy Vansycle LLC (WA)Touchet, WA370.3 GWh31.8 mi
Hopkins Ridge WindDayton, WA405.8 GWh30.6 mi
Ice HarborBurbank, WA1.4 TWh31.9 mi
Little GooseDayton, WA1.5 TWh35.9 mi
Lower MonumentalKahlotus, WA1.4 TWh35.5 mi
Lower Snake River Wind Energy ProjectPomeroy, WA852.0 GWh36.5 mi
Marengo Wind PlantDayton, WA692.7 GWh30.2 mi
McNaryUmatilla, OR3.7 TWh51.1 mi
McNary Dam Fish Attraction ProjectPlymouth, WA64.2 GWh51.1 mi
Nine CanyonKennewick, WA209.3 GWh40.3 mi
Potholes East Canal 66.0Pasco, WA4.8 GWh51.8 mi
Schumann Wind FarmMilton-Freewater, OR24.1 GWh17.1 mi
Tucannon River Wind FarmDayton, WA808.3 GWh25.4 mi
VansycleTouchet, OR60.0 GWh22.1 mi
Vansycle II Wind Energy CenterAthena, OR357.3 GWh20.8 mi