Rock Island

Rock Island Dam, Wenatchee, WA 98801

Plant Summary Information

Rock Island is ranked #22 out of 1,371 hydroelectric power plants nationwide in terms of total annual net electricity generation.

Rock Island is comprised of 19 generators and generated 498.4 GWh during the 3-month period between June 2024 to September 2024.

Plant Name	Rock Island
Utility Name	PUD No 1 of Chelan County
Location	Chelan County, WA
Initial Operation Date	October 1931
Last Update	Sep 2024
Annual Generation	2.0 TWh
Annual Consumption	7.2 M MMBtu
Ranked #523 out of 11,852 Power Plants Nationwide
Ranked #22 out of 1,371 Water Power Plants Nationwide
Ranked #14 out of 134 Washington Power Plants
Ranked #8 out of 70 Washington Water Power Plants
Fuel Types	Water

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Monthly Net Generation for Rock Island

Rock Island Details

Summary Information
Plant Name	Rock Island (6200)
Plant Address	Rock Island Dam, Wenatchee, WA 98801
Utility	PUD No 1 of Chelan County (3413)
Latitude, Longitude	47.34611, -120.0917
Generation Dates on File	Jan 2001 to Sep 2024
Initial Operation Date	October 1931
Annual Generation	2.0 TWh
Fuel Types	Water

Federal Energy Regulatory Commission (FERC) Information
FERC Cogeneration Status	No
FERC Small Power Producer Status	No
FERC Exempt Wholesale Generator Status	No

Regulatory Information
Regulatory Status	Regulated
NERC Region	WECC
Balancing Authority	Public Utility District No. 1 of Chelan County (CHPD)
NAICS Code	Utilities (22)
Sector	Electric Utility (1)
Water Source	Columbia River
Ash Impoundment	No
Transmission / Distribution Owner	PUD No 1 of Chelan County (3413) WA
Grid Voltage	115.00 kV
Energy Storage	No

* Data obtained from the 2023 EIA 860 Report

Generator A Details Operating October 1931

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	1.2 MW
Nameplate Power Factor	0.8
Summer Capacity	1.2 MW
Winter Capacity	1.2 MW
Minimum Load	0.2 MW
Uprate/Derate Completed	No
Status	Operating

First Operation Date	October 1931
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	No
Multiple Fuels	No

Generator B-2 Details Out of Service October 1931

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	20.7 MW
Nameplate Power Factor	0.9
Summer Capacity	15 MW
Winter Capacity	15 MW
Minimum Load	10 MW
Uprate/Derate Completed	No
Status	Out of Service

First Operation Date	October 1931
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	Yes
Other Modifications	December 2025
Multiple Fuels	No

Generator B-1 Details Out of Service November 1931

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	20.7 MW
Nameplate Power Factor	0.9
Summer Capacity	15 MW
Winter Capacity	15 MW
Minimum Load	10 MW
Uprate/Derate Completed	No
Status	Out of Service

First Operation Date	November 1931
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	Yes
Other Modifications	April 2027
Multiple Fuels	No

Generator B-4 Details Operating October 1932

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	20.7 MW
Nameplate Power Factor	0.9
Summer Capacity	15 MW
Winter Capacity	15 MW
Minimum Load	10 MW
Uprate/Derate Completed	No
Status	Operating

First Operation Date	October 1932
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	No
Multiple Fuels	No

Generator B-3 Details OA December 1932

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	20.7 MW
Nameplate Power Factor	0.9
Summer Capacity	15 MW
Winter Capacity	15 MW
Minimum Load	10 MW
Uprate/Derate Completed	No
Status	OA

First Operation Date	December 1932
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	Yes
Other Modifications	June 2024
Multiple Fuels	No

Generator B-6 Details OA October 1952

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	22.5 MW
Nameplate Power Factor	0.9
Summer Capacity	17 MW
Winter Capacity	17 MW
Minimum Load	10 MW
Uprate/Derate Completed	No
Status	OA

First Operation Date	October 1952
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	Yes
Other Modifications	February 2024
Multiple Fuels	No

Generator B-7 Details Operating November 1952

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	22.5 MW
Nameplate Power Factor	0.9
Summer Capacity	17 MW
Winter Capacity	17 MW
Minimum Load	10 MW
Uprate/Derate Completed	No
Status	Operating

First Operation Date	November 1952
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	No
Multiple Fuels	No

Generator B-5 Details Operating September 1952

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	22.5 MW
Nameplate Power Factor	0.9
Summer Capacity	17 MW
Winter Capacity	17 MW
Minimum Load	10 MW
Uprate/Derate Completed	No
Status	Operating

First Operation Date	September 1952
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	No
Multiple Fuels	No

Generator B-8 Details Operating January 1953

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	22.5 MW
Nameplate Power Factor	0.9
Summer Capacity	17 MW
Winter Capacity	17 MW
Minimum Load	10 MW
Uprate/Derate Completed	No
Status	Operating

First Operation Date	January 1953
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	Yes
Other Modifications	January 2027
Multiple Fuels	No

Generator B-9 Details Operating March 1953

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	22.5 MW
Nameplate Power Factor	0.9
Summer Capacity	19 MW
Winter Capacity	19 MW
Minimum Load	10 MW
Uprate/Derate Completed	No
Status	Operating

First Operation Date	March 1953
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	Yes
Other Modifications	January 2025
Multiple Fuels	No

Generator B-10 Details Operating April 1953

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	22.5 MW
Nameplate Power Factor	0.9
Summer Capacity	19 MW
Winter Capacity	19 MW
Minimum Load	10 MW
Uprate/Derate Completed	No
Status	Operating

First Operation Date	April 1953
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	No
Multiple Fuels	No

Generator U-6 Details Operating October 1978

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	51.3 MW
Nameplate Power Factor	0.95
Summer Capacity	42 MW
Winter Capacity	42 MW
Minimum Load	10 MW
Uprate/Derate Completed	No
Status	Operating

First Operation Date	October 1978
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	Yes
Other Modifications	August 2029
Multiple Fuels	No

Generator U-5 Details OA December 1978

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	51.3 MW
Nameplate Power Factor	0.95
Summer Capacity	42 MW
Winter Capacity	42 MW
Minimum Load	10 MW
Uprate/Derate Completed	No
Status	OA

First Operation Date	December 1978
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	Yes
Other Modifications	October 2024
Multiple Fuels	No

Generator U-8 Details Operating July 1978

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	51.3 MW
Nameplate Power Factor	0.95
Summer Capacity	42 MW
Winter Capacity	42 MW
Minimum Load	10 MW
Uprate/Derate Completed	No
Status	Operating

First Operation Date	July 1978
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	Yes
Other Modifications	September 2028
Multiple Fuels	No

Generator U-7 Details Operating August 1978

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	51.3 MW
Nameplate Power Factor	0.95
Summer Capacity	42 MW
Winter Capacity	42 MW
Minimum Load	10 MW
Uprate/Derate Completed	No
Status	Operating

First Operation Date	August 1978
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	Yes
Other Modifications	December 2025
Multiple Fuels	No

Generator U-4 Details Operating February 1979

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	51.3 MW
Nameplate Power Factor	0.95
Summer Capacity	42 MW
Winter Capacity	42 MW
Minimum Load	10 MW
Uprate/Derate Completed	No
Status	Operating

First Operation Date	February 1979
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	Yes
Other Modifications	October 2027
Multiple Fuels	No

Generator U-3 Details Operating April 1979

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	51.3 MW
Nameplate Power Factor	0.95
Summer Capacity	42 MW
Winter Capacity	42 MW
Minimum Load	10 MW
Uprate/Derate Completed	No
Status	Operating

First Operation Date	April 1979
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	Yes
Other Modifications	November 2026
Multiple Fuels	No

Generator U-2 Details Operating June 1979

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	51.3 MW
Nameplate Power Factor	0.95
Summer Capacity	42 MW
Winter Capacity	42 MW
Minimum Load	10 MW
Uprate/Derate Completed	No
Status	Operating

First Operation Date	June 1979
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	Yes
Other Modifications	August 2030
Multiple Fuels	No

Generator U-1 Details Operating August 1979

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	51.3 MW
Nameplate Power Factor	0.95
Summer Capacity	42 MW
Winter Capacity	42 MW
Minimum Load	10 MW
Uprate/Derate Completed	No
Status	Operating

First Operation Date	August 1979
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Other Planned Modifications	Yes
Other Modifications	June 2031
Multiple Fuels	No

Rock Island Plant Owners

Owner Name	Address	Generator	Ownership
*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.

Rank	Plant Name	Plant Location	Annual Generation
#12	Wells	Pateros, WA	3.4 TWh
#13	Boundary	Metaline, WA	3.1 TWh
#14	Glen Canyon Dam	Page, AZ	2.8 TWh
#15	Edward C Hyatt	Oroville, CA	2.4 TWh
#16	Shasta	Redding, CA	2.4 TWh
#17	Wilson Dam	Muscle Shoals, AL	2.2 TWh
#18	Garrison	Riverside, ND	2.1 TWh
#19	Brownlee	Cambridge, ID	2.1 TWh
#20	Oahe	Pierre, SD	2.1 TWh
#21	Conowingo	Darlington, MD	2.0 TWh
#23	Hells Canyon	Oxbow, OR	1.8 TWh
#24	Libby	Libby, MT	1.6 TWh
#25	Hoover Dam (AZ)	Boulder City, AZ	1.5 TWh
#26	Little Goose	Dayton, WA	1.5 TWh
#27	Fort Randall	Pickstown, SD	1.5 TWh
#28	Dworshak	Ahsahka, ID	1.4 TWh
#29	Hoover Dam (NV)	Boulder City, NV	1.4 TWh
#30	Ice Harbor	Burbank, WA	1.4 TWh
#31	Lower Monumental	Kahlotus, WA	1.3 TWh
#32	Noxon Rapids	Noxon, MT	1.3 TWh

Nearby Power Plants

Below are closest 20 power plants surrounding Rock Island.

Plant Name	Plant Location	Annual Generation	Distance
Camas Solar Project	Ellensburg, WA	10.3 GWh	33.1 mi
Chelan	Wenatchee, WA	305.8 GWh	34 mi
Chief Joseph	Bridgeport, WA	9.0 TWh	49.5 mi
Cowiche	Tieton, WA	3.4 GWh	54.4 mi
Main Canal Headworks	Coulee City, WA	118.7 GWh	41.5 mi
Orchard Avenue 1	Yakima, WA	2.6 GWh	58.7 mi
PEC Headworks	Moses Lake, WA	18.7 GWh	15.8 mi
Penstemon Solar Project	Ellensburg, WA	10.4 GWh	33.1 mi
Priest Rapids	Mattawa, WA	3.8 TWh	49.2 mi
Quincy Chute	Quincy, WA	33.8 GWh	46.5 mi
Rocky Reach	Wenatchee, WA	4.8 TWh	16.1 mi
Roza	Yakima, WA	54.5 GWh	53.5 mi
Sagebrush Power Partners	Ellensburg, WA	255.0 GWh	31.5 mi
Summer Falls Power Plant	Coulee City, WA	447.2 GWh	38.9 mi
Swauk Wind LLC	Thorp, WA	6.0 GWh	34.2 mi
Urtica Solar Project	Ellensburg, WA	11.4 GWh	32.5 mi
Vantage Wind Energy LLC	Ellensburg, WA	231.6 GWh	27.4 mi
Wanapum	Beverly, WA	4.0 TWh	33.2 mi
Wells	Pateros, WA	3.4 TWh	42.8 mi
Wild Horse	Ellensburg, WA	589.0 GWh	22.1 mi