West Point Treatment Plant

1400 Discovery Park Blvd, Seattle, WA 98199

Plant Summary Information

West Point Treatment Plant is ranked #18 out of 73 other biomass gas power plants nationwide in terms of total annual net electricity generation.

West Point Treatment Plant is comprised of 2 generators and generated 3.7 GWh during the 3-month period between September 2025 to December 2025.

Plant Name	West Point Treatment Plant
Utility Name	King County Dept-Natural Res - (WA)
Location	King County, WA
Initial Operation Date	June 2012
Last Update	Dec 2025
Annual Generation	14.3 GWh
Annual Consumption	163.9 k MMBtu
Ranked #5,750 out of 13,081 Power Plants Nationwide
Ranked #18 out of 73 Other Biomass Gas Power Plants Nationwide
Ranked #104 out of 131 Washington Power Plants
Ranked #1 out of 1 Washington Other Biomass Gas Power Plants
Fuel Types	Other Biomass Gas
Previous Operator	King County Dept-Natural Res (2013 to 2024) King County Dept-Natural Res - (WA) (2025 to 2025)

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Monthly Net Generation for West Point Treatment Plant

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Monthly Plant Fuel Consumption for West Point Treatment Plant

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West Point Treatment Plant Details

Summary Information
Plant Name	West Point Treatment Plant (50329)
Plant Address	1400 Discovery Park Blvd, Seattle, WA 98199
Utility	King County Dept-Natural Res - (WA) (10004)
Latitude, Longitude	47.66111, -122.44639
Generation Dates on File	Jan 2001 to Dec 2025
Initial Operation Date	June 2012
Annual Generation	14.3 GWh
Fuel Types	Other Biomass Gas

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	Non-Regulated
NERC Region	WECC
Balancing Authority	Seattle City Light (SCL)
NAICS Code	Sewage Treatment Facilities (22132)
Sector	Commercial CHP (5)
Water Source
Ash Impoundment	No
Transmission / Distribution Owner	City of Seattle - (WA) (16868) WA
Grid Voltage	13.80 kV
Energy Storage	No

* Data obtained from the 2025 EIA 860 Report

Generator 4 Details Operating June 2012

Technology	Other Waste Biomass
Prime Mover	Internal Combustion Engine
Ownership	Single Owner
Nameplate Capacity	2.3 MW
Nameplate Power Factor	0.7
Summer Capacity	2.3 MW
Winter Capacity	2.3 MW
Minimum Load	1.7 MW
Uprate/Derate Completed	No
Status	Operating
First Operation Date	June 2012

Combined Heat & Power	Yes
Sector Name	Commercial CHP (5)
Topping Or Bottoming	T
Energy Source	Other Biomass Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	1H
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Generator 5 Details Operating June 2012

Technology	Other Waste Biomass
Prime Mover	Internal Combustion Engine
Ownership	Single Owner
Nameplate Capacity	2.3 MW
Nameplate Power Factor	0.7
Summer Capacity	2.3 MW
Winter Capacity	2.3 MW
Minimum Load	1.7 MW
Uprate/Derate Completed	No
Status	Operating
First Operation Date	June 2012

Combined Heat & Power	Yes
Sector Name	Commercial CHP (5)
Topping Or Bottoming	T
Energy Source	Other Biomass Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	1H
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

West Point Treatment Plant 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 Other Biomass Gas.

Rank	Plant Name	Plant Location	Annual Generation
#8	Cosumnes Power Plant	Herald, CA	3.1 TWh
#9	SJ/SC WPCP	San Jose, CA	69.4 GWh
#10	WWTP Power Generation Station	Oakland, CA	31.2 GWh
#11	Gas Utilization Facility	San Diego, CA	28.7 GWh
#12	Deer Island Treatment Plant	Winthrop, MA	33.2 GWh
#13	PWD Northeast WPCP Biogas Cogen Plant	Philadelphia, PA	31.0 GWh
#14	MMSD South Shore Wastewater	Oak Creek, WI	23.0 GWh
#15	Power Generation Station (PGS) 2	Oakland, CA	20.3 GWh
#16	Toyota Long Beach Trigen	Long Beach, CA	16.8 GWh
#17	ABEC Bidart-Old River LLC	Bakersfield, CA	15.6 GWh
#19	West Point RNG	Wendell, ID	13.7 GWh
#20	Encina Water Pollution Control	Carlsbad, CA	14.3 GWh
#21	Southside Water Reclamation Plant	Albuquerque, NM	20.5 GWh
#22	Diamond H Dairy Power	Chowchilla, CA	11.5 GWh
#23	Green Cow Power	Goshen, IN	11.1 GWh
#24	Missouri River Wastewater Treatment	Omaha, NE	10.2 GWh
#25	South District Wastewater Treatment Plt	Miami, FL	20.6 GWh
#26	Kettle Butte Digester, LLC	Roberts, ID	9.2 GWh
#27	Big Sky Dairy Digester	Gooding, ID	9.0 GWh
#28	Santa Barbara ReSource Center	Goleta, CA	8.7 GWh

Nearby Power Plants

Below are closest 20 power plants surrounding West Point Treatment Plant.

Plant Name	Plant Location	Annual Generation	Distance
Arlington Microgrid	Arlington, WA	601.0 MWh	36.9 mi
Black Creek	Snoqualmie, WA	8.7 GWh	35.1 mi
Calligan Creek Hydroelectric Project	Snoqualmie, WA	12.6 GWh	35.5 mi
Cedar Falls (WA)	North Bend, WA	53.6 GWh	35.2 mi
Cedar Hills	Maple Valley, WA	53.0 MWh	23.6 mi
Cushman 1	Shelton, WA	107.8 GWh	40 mi
Cushman 2	Shelton, WA	160.5 GWh	38.9 mi
Frederickson	Tacoma, WA	20.8 GWh	40.4 mi
Frederickson Power LP	Tacoma, WA	1.6 TWh	39.9 mi
H M Jackson	Sultan, WA	333.6 GWh	34 mi
Hancock Creek Hydroelectric Project	Snoqualmie, WA	18.3 GWh	35.8 mi
Lilliwaup Falls Generating	Lilliwaup, WA	5.3 GWh	33.8 mi
Port Townsend Paper	Port Townsend, WA	7.7 GWh	34 mi
Rocky Brook Hydroelectric	Brinnon, WA	464.0 MWh	23.5 mi
Snoqualmie	Snoqualmie, WA	59.2 GWh	29.6 mi
Snoqualmie 2	Snoqualmie, WA	106.8 GWh	29.3 mi
South Fork Tolt	North Bend, WA	48.6 GWh	31 mi
Twin Falls Hydro	North Bend, WA	59.3 GWh	38.4 mi
University of Washington Power Plant	Seattle, WA	129.4 MWh	6.7 mi
Youngs Creek Hydroelectric Project	Monroe, WA	12.9 GWh	31.4 mi