Twin Reservoirs

581 Mill Creek Road, Walla Walla, WA 99362

Plant Summary Information

Twin Reservoirs is ranked #63 out of 70 hydroelectric power plants in Washington in terms of total annual net electricity generation.

Twin Reservoirs is comprised of 1 generator and generated 1.9 GWh during the 3-month period between September 2023 to December 2023.

Plant NameTwin Reservoirs
Utility NameWalla Walla City of
LocationWalla Walla County, WA
Initial Operation DateApril 1988
Last Update Dec 2023
Annual Generation 8.1 GWh
Annual Consumption 30.1 k MMBtu
Ranked #6,588 out of 11,852 Power Plants Nationwide
Ranked #1,033 out of 1,371 Water Power Plants Nationwide
Ranked #118 out of 134 Washington Power Plants
Ranked #63 out of 70 Washington Water Power Plants
Fuel Types Water

Map of Twin Reservoirs

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Monthly Net Generation for Twin Reservoirs

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 2023
Initial Operation DateApril 1988
Annual Generation 8.1 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
Other Planned ModificationsNo
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
#1023Annex CreekJuneau, AK8.4 GWh
#1024InksBuchanan Dam, TX8.4 GWh
#1025Oswego Falls WestFulton, NY8.4 GWh
#1026LahontanFallon, NV8.4 GWh
#1027Diana HydroelectricHarrisville, NY8.3 GWh
#1028Milton HydroMilton, NH8.2 GWh
#1029GlenRutland, VT8.2 GWh
#1030La GrangeLa Grange, CA8.2 GWh
#1031MerrillMerrill, WI8.2 GWh
#1032Sandstone RapidsTown of Stephenson, WI8.2 GWh
#1034Newfound HydroelectricBristol, NH8.1 GWh
#1035Hailesboro 4 PlantHailesboro, NY8.1 GWh
#1036Barker LowerAuburn, ME8.1 GWh
#1037Dexter PlantDexter, NY8.1 GWh
#1038Hydraulic RaceLockport, NY8.1 GWh
#1039SylvanPillager, MN8.0 GWh
#1040NiagaraVinton, VA8.0 GWh
#1041Boulder City Silver Lake HydroBoulder, CO8.0 GWh
#1042Rochester 26Rochester, NY7.9 GWh
#1043Glenwood HydroMedina, NY7.9 GWh

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