Yellowstone Energy LP — Plant Summary
- EIA Plant ID
- 50931
- Capacity
- 68 MW
- Primary Fuel
- PC
- Technology
- Petroleum Coke
- Status
- Operating
- Location
- Yellowstone, MT
- Operating Since
- 1995
- Generators
- 1
- Operator
- Yellowstone Energy LP
- Parent Company
- Par Pacific Holdings
- Annual Generation
- 458,357 MWh
- Capacity Factor
- 77.0%
- Balancing Authority
- NorthWestern Energy (NWMT)
- ISO/RTO
- —
- NERC Region
- WECC
Yellowstone Energy LP
OperatingPet. Coke
Ranked #1 of 1 Pet. Coke plants in MT#6 of 10 nationally
68 MW Pet. Coke operating in Yellowstone, MT — NorthWestern Energy (NWMT)
EIAWD
68 MW
Nameplate Capacity
1
Generators
unit
Petroleum Coke
Technology
1995
Operating Since
Location
Coordinates
45.8109, -108.4285
County
Yellowstone, MT
Nearby Plants
- Phillips 66 Billings RefineryOther Gas1.6 MW · 6.2 km
- Western Sugar Cooperative - BillingsSub. Coal1.5 MW · 7.5 km
- MTSUNSolar80 MW · 18.2 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Yellowstone Energy LP | Yellowstone Energy | — |
| Owner(s) | Yellowstone Energy LP | Par Pacific Holdings | — |
| Status | Operating | — | — |
Ownership Chain
About
Yellowstone Energy LP is a 68 MW power plant located in Yellowstone County, Montana. The plant, which began operating in 1995, utilizes petroleum coke (PC) as its primary fuel source. It consists of a single generator. Yellowstone Energy LP is both the owner and operator, while Par Pacific Holdings is the parent company. The plant is the largest of its kind in Montana and ranks third nationally among facilities using petroleum coke.
In the most recent year with available data, Yellowstone Energy LP generated 458,357 MWh of electricity, achieving a capacity factor of 77.0%. The plant operates within the NorthWestern Energy (NWMT) balancing authority and is part of the Western Electricity Coordinating Council (WECC) NERC region.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
NorthWestern Energy (NWMT)
Grid Voltage
50 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP CHP
Generation
35.9K MWh
Latest Month
458.4K MWh
Annual Generation
77.0%
Capacity Factor
Jan 2023 – Dec 2025
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.
News & Articles (10)Beta
Industry·corporate
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What we know about data centers, electricity costs and the future of Montana's largest power plant following NorthWestern's acquisition of...
NorthWestern Energy (buyer)
Montana Free Press·2 months ago
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NorthWestern Energy now owns an extra 592 megawatts of Colstrip. What’s its plan for doubling down on coal?
What we know about data centers, electricity costs and the future of Montana's largest power plant following NorthWestern's acquisition of...
Montana Free Press·2 months ago
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Here's where to expect a potential Yellowstone County data center
In 2024, Montana Property LLC purchased 20 parcels — or eight square miles — of arid, agricultural land south of Broadview in Yellowstone...
WV News·2 months ago
General
Here's where to expect a potential Yellowstone County data center
In 2024, Montana Property LLC purchased 20 parcels — or eight square miles — of arid, agricultural land south of Broadview in Yellowstone...
WV News·2 months ago
Last updated 2026-03-26
View all 10 articles