2 MW Distillate Oil standby in Teton, WY — NorthWestern Energy (NWMT)
2 MW
Nameplate Capacity
2
Generators
units
Petroleum Liquids
Technology
1979
Operating Since
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | NorthWestern Energy (MT wind/thermal) | — | — |
| Owner(s) | NorthWestern Energy (MT wind/thermal) | — | — |
| Status | Standby | — | — |
Old Faithful is a small petroleum-fueled power plant located in Teton County, Wyoming. The plant has a total capacity of 2 MW, distributed across two generators utilizing Petroleum Liquids technology. It began operating in 1979 and is owned and operated by NorthWestern Energy (MT wind/thermal). The plant operates within the NorthWestern Energy (NWMT) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region.
In its latest year of operation, Old Faithful generated 273 MWh of electricity, resulting in a capacity factor of 1.6%. According to available data, the plant's installed cost was $328.84 per kW, based on information reported to the Federal Energy Regulatory Commission (FERC). Old Faithful is ranked as the 2nd largest petroleum plant in Wyoming, and 754th nationally out of 886 similar plants.
Generated from EIA, GEM, and public data sources
NERC Region
WECC
Balancing Authority
NorthWestern Energy (NWMT)
Grid Voltage
50 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
21 MWh
Latest Month
273 MWh
Annual Generation
1.6%
Capacity Factor
$329/kW
Installed Cost
NorthWestern Corporation
Reporting Utility
Cumulative Installed Cost
Per-Unit Cost Trends
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.