MTSUN — Plant Summary
- EIA Plant ID
- 64032
- Capacity
- 80 MW
- Primary Fuel
- Solar
- Technology
- Solar Photovoltaic
- Status
- Operating
- Location
- Yellowstone, MT
- Operating Since
- 2023
- Generators
- 1
- Operator
- Greenbacker Renewable Energy Corporation
- Parent Company
- —
- Annual Generation
- 149,035 MWh
- Capacity Factor
- 21.3%
- Balancing Authority
- NorthWestern Energy (NWMT)
- ISO/RTO
- —
- NERC Region
- WECC
MTSUN
OperatingSolar
Ranked #1 of 9 Solar plants in MT#909 of 7447 nationally
80 MW Solar operating in Yellowstone, MT — NorthWestern Energy (NWMT)
EIAGEM
80 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2023
Operating Since
Location
Coordinates
45.8740, -108.6446
County
Yellowstone, MT
Nearby Plants
- Beartooth Energy Storage LLCBESS50 MW · 11.5 km
- Phillips 66 Billings RefineryOther Gas1.6 MW · 16.1 km
- Western Sugar Cooperative - BillingsSub. Coal1.5 MW · 16.5 km
Ownership & Operator
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Greenbacker Renewable Energy Corporation | Greenbacker Renewable Energy | — |
| Owner(s) | Greenbacker Renewable Energy Corporation | Greenbacker Renewable Energy Co LLC [100%] | — |
| Status | Operating | operating | — |
Ownership Chain
GEM identifies the owner as Greenbacker Renewable Energy Co LLC [100%]
This entity is not yet in the GEM ownership database — chain unavailable.
About
MTSUN is an 80 MW solar photovoltaic power plant located in Yellowstone County, Montana. The plant began operating in 2023 and is owned and operated by Greenbacker Renewable Energy Corporation. It utilizes single-axis tracking technology. MTSUN is the second-largest of nine solar plants in Montana, and ranks 732nd out of 7,108 solar plants nationally.
In its most recent year of operation, MTSUN generated 149,035 MWh of electricity, achieving a capacity factor of 21.3%. The plant operates within the NorthWestern Energy (NWMT) balancing authority and is part of the Western Electricity Coordinating Council (WECC) NERC region. Financial data indicates a power purchase agreement (PPA) price of $34.82 per MWh.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
NorthWestern Energy (NWMT)
Grid Voltage
230 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
3.0K MWh
Latest Month
149.0K MWh
Annual Generation
21.3%
Capacity Factor
Financial DataBeta
Source: LBNL Utility-Scale SolarHIGH
$32.6/MWh
LCOE (Levelized Cost)
$34.8/MWh
PPA Price
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (7)Beta
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Middle Tennessee State University·2 years ago
Industry·technology
Southwest Montana solar project powers up
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Bozeman Daily Chronicle·2 years ago
Last updated 2026-03-15
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