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24.6 MW Natural Gas operating in Spokane, WA — Avista Corporation
24.6 MW
Nameplate Capacity
6
Generators
units
Natural Gas Internal Combustion Engine
Technology
2002
Operating Since
Coordinates
47.6972, -117.1472
County
Spokane, WA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Avista Corp | Avista | — |
| Owner(s) | Avista Corp | Avista | — |
| Status | Operating | — | — |
Boulder Park is a 24.6 MW natural gas-fired power plant located in Spokane County, Washington. The plant began operating in 2002 and consists of six natural gas internal combustion engine generators. It is owned and operated by Avista Corp. Boulder Park is located within the Western Electricity Coordinating Council (WECC) NERC region, and its balancing authority is Avista Corporation.
In the most recent year of record, Boulder Park generated 99,023 MWh of electricity, resulting in a capacity factor of 45.9%. According to available data, the installed cost of the plant was $1,336.12 per kW. Boulder Park is ranked as the 16th largest power plant out of 17 in Washington state, and 1276th out of 1963 nationally. Financial data for the plant is sourced from FERC filings.
Generated from EIA, GEM, and public data sources
Grid Region
Pacific Northwest
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
8.7K MWh
Latest Month
99.0K MWh
Annual Generation
45.9%
Capacity Factor
CO₂ Intensity
1077 lb/MWh
NOx
25 lb/MWh
SO₂
Internal combustion · Avista Corporation · Data from 2015–2024
$1,412/kW
Installed Cost
$43/kW
Annual CapEx
$36.2/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
This plant's balancing authority participates in CAISO's Western Energy Imbalance Market (WEIM). Direct nodal pricing data is not yet available.
Last updated 2026-03-26
View all articlesNo ask pi reports yet for this entity.
ask pi about Boulder ParkAvista Corporation (AVA)
Grid Voltage
115.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
0.029 lb/MWh
CH₄
0.020 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
29.7%
Annual Net Gen
64 GWh
CO₂eq
1078 lb/MWh
Subregion
WECC Northwest