West Point Treatment Plant — Plant Summary
- EIA Plant ID
- 50329
- Capacity
- 4.6 MW
- Primary Fuel
- Biogas
- Technology
- Other Waste Biomass
- Status
- Operating
- Location
- King, WA
- Operating Since
- 2012
- Generators
- 2
- Operator
- King County Dept-Natural Res
- Parent Company
- —
- Annual Generation
- 9,565.01 MWh
- Capacity Factor
- 23.7%
- Balancing Authority
- Seattle City Light
- ISO/RTO
- —
- NERC Region
- WECC
West Point Treatment Plant
OperatingBio. Gas
Ranked #1 of 1 Bio. Gas plants in WA#18 of 72 nationally
4.6 MW Bio. Gas operating in King, WA — Seattle City Light
EIAWD
4.6 MW
Nameplate Capacity
2
Generators
units
Other Waste Biomass
Technology
2012
Operating Since
Location
Coordinates
36.0702, -94.2318
County
King, WA
Nearby Plants
- P PlantNatural Gas4.6 MW · 0.4 km
- UA Central Utility PlantNatural Gas5.6 MW · 5.4 km
- Waste Management Eco Vista LFGTELandfill Gas4 MW · 8.2 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | King County Dept-Natural Res | — | — |
| Owner(s) | King County Dept-Natural Res | — | — |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
The West Point Treatment Plant is a major wastewater treatment plant in Seattle, WA. It is located in Seattle's Magnolia neighborhood, within Discovery Park. It is located at the tip of West Point, near the West Point Lighthouse. Operated by King County Wastewater Treatment Division (WTD), the plant handles significant wastewater and stormwater flows from the City of Seattle and other nearby communities. In 2017, the plant suffered a catastrophic flood that disabled it for months.
Read more on WikipediaThe West Point Treatment Plant, located in King County, Washington, is a 4.6 MW electricity generation facility fueled by other waste biomass (OBG). The plant began operating in 2012 and is owned and operated by the King County Department of Natural Resources. It consists of two generators utilizing "Other Waste Biomass" technology.
In its latest reporting year, the West Point Treatment Plant generated 9,565 MWh of electricity, achieving a capacity factor of 23.7%. The plant operates within the Seattle City Light balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. According to available data, the West Point Treatment Plant is the largest of its kind in Washington state and ranks 20th nationally among 74 similar facilities.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Seattle City Light
Grid Voltage
13.8 kV
Regulatory Status
NR
Entity Type
Municipal
Sector
Commercial CHP
Generation
834 MWh
Latest Month
9.6K MWh
Annual Generation
23.7%
Capacity Factor
Jan 2022 – Dec 2024
Financial Data
No financial data available for this plant.
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.