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15 MW Natural Gas Steam Turbine (3 MW) + Petroleum Liquids (12 MW) standby in King, WA — Seattle City Light
15 MW
Nameplate Capacity
7
Generators
units
Hybrid (2)
Technology
Natural Gas Steam Turbine + Petroleum Liquids
1993
Operating Since
Coordinates
42.1238, -83.1877
County
King, WA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | University of Washington | — | — |
| Owner(s) | University of Washington | — | — |
| Status | Standby | — | — |
The University of Washington Power Plant, located in King County, Washington, has a total capacity of 15 MW across 7 generators. The plant began operating in 1993 and is operated by the University of Washington. The primary fuel source is distillate fuel oil (DFO), but the plant utilizes both natural gas steam turbine and petroleum liquids technologies, classifying it as a hybrid facility.
The plant operates within the Seattle City Light balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. In the most recent year with available data, the plant generated 1,755 MWh, resulting in a capacity factor of 1.3%. The University of Washington Power Plant holds a rank of 1 out of 4 similar plants in Washington state, and a national rank of 245 out of 886.
Generated from EIA, GEM, and public data sources
Grid Region
Pacific Northwest
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
Seattle City Light (SCL)
Grid Voltage
26.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
State
Sector
Commercial CHP
8 MWh
Latest Month
1.8K MWh
Annual Generation
1.3%
Capacity Factor
CO₂ Intensity
3078 lb/MWh
Low-utilization plant — per-MWh rate is dominated by startup/standby emissions; not directly comparable to baseload averages.
NOx
4 lb/MWh
SO₂
0.021 lb/MWh
CH₄
0.059 lb/MWh
N₂O
0.006 lb/MWh
Capacity Factor
1.0%
Annual Net Gen
1 GWh
CO₂eq
3081 lb/MWh
Subregion
WECC Northwest
2013
$765/kW
Est. Construction Cost
Total estimated cost: $11.5M
This plant's balancing authority participates in CAISO's Western Energy Imbalance Market (WEIM). Direct nodal pricing data is not yet available.
Last updated 2026-03-14
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