Cottonwood

651 Power House Rd., Lone Pine, CA 93545

Plant Summary Information

Cottonwood is ranked #186 out of 207 hydroelectric power plants in California in terms of total annual net electricity generation.

Cottonwood is comprised of 2 generators and generated 206.0 MWh during the 3-month period between September 2025 to December 2025.

Plant Name	Cottonwood
Utility Name	Los Angeles Department of Water & Power
Location	Inyo County, CA
Initial Operation Date	November 1908
Last Update	Dec 2025
Annual Generation	3.4 GWh
Annual Consumption	12.2 k MMBtu
Ranked #9,475 out of 13,081 Power Plants Nationwide
Ranked #1,169 out of 1,311 Water Power Plants Nationwide
Ranked #1,211 out of 1,606 California Power Plants
Ranked #186 out of 207 California Water Power Plants
Fuel Types	Water

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Summary Information
Plant Name	Cottonwood (394)
Plant Address	651 Power House Rd., Lone Pine, CA 93545
Utility	Los Angeles Department of Water & Power (11208)
Latitude, Longitude	36.44342, -118.04389
Generation Dates on File	Jan 2001 to Dec 2025
Initial Operation Date	November 1908
Annual Generation	3.4 GWh
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	Los Angeles Department of Water and Power (LDWP)
NAICS Code	Utilities (22)
Sector	Electric Utility (1)
Water Source	Cottonwood Creek
Ash Impoundment	No
Transmission / Distribution Owner	Los Angeles Department of Water & Power (11208) CA
Grid Voltage	34.50 kV
Energy Storage	No

* Data obtained from the 2025 EIA 860 Report

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
RTO ISO LMP Node Designation	none
RTO ISO Location Designation For Reporting Wholesale Sales Data	none
Nameplate Capacity	0.8 MW
Nameplate Power Factor	0.8
Summer Capacity	1.2 MW
Winter Capacity	1.2 MW
Minimum Load	0.1 MW

Uprate/Derate Completed	No
Status	Operating
First Operation Date	November 1908
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	1H
Multiple Fuels	No

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
RTO ISO LMP Node Designation	none
RTO ISO Location Designation For Reporting Wholesale Sales Data	none
Nameplate Capacity	0.8 MW
Nameplate Power Factor	0.8
Summer Capacity	1.2 MW
Winter Capacity	1.2 MW
Minimum Load	0.1 MW

Uprate/Derate Completed	No
Status	Operating
First Operation Date	October 1909
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	1H
Multiple Fuels	No

Owner Name	Address	Generator	Ownership
*We couldn't locate any owners for this plant*

Power plants with a similar annual net generation from Water.

Rank	Plant Name	Plant Location	Annual Generation
#1159	Hoot Lake	Fergus Falls, MN	3.6 GWh
#1160	Haw River Hydro	Saxapahaw, NC	3.5 GWh
#1161	Marsh Valley Development	McCammon, ID	3.5 GWh
#1162	Messalonskee 5	Waterville, ME	3.5 GWh
#1163	Last Chance	Grace, ID	3.5 GWh
#1164	Indian Orchard	Indian Orchard, MA	3.5 GWh
#1165	Lower Village Water Power Project	Claremont, NH	3.5 GWh
#1166	Oswego Falls West	Fulton, NY	3.4 GWh
#1167	Yaleville	Norfolk, NY	3.4 GWh
#1168	Pine View Dam	Ogden, UT	3.4 GWh
#1170	Boyds Mill Hydro	Ware Shoals, SC	3.4 GWh
#1171	Fort Miller Hydroelectric Facility	Northumberland, NY	3.4 GWh
#1172	Koyle Ranch Hydroelectric Project	Gooding, ID	3.4 GWh
#1173	AJMS, LLC	Shoshone, ID	3.4 GWh
#1174	Cowiche	Tieton, WA	3.4 GWh
#1175	Thundermist Hydro	Providence, RI	3.3 GWh
#1176	Moccasin Low Head Hydro Project	Moccasin, CA	3.3 GWh
#1177	Big Thompson	Loveland, CO	3.3 GWh
#1178	Turlock Lake	Hickman, CA	3.2 GWh
#1179	Potholes East Canal 66.0	Pasco, WA	3.2 GWh

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