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80 MW Solar operating in Yellowstone, MT — NorthWestern Energy (NWMT)
80 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2023
Operating Since
Coordinates
45.8740, -108.6446
County
Yellowstone, MT
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Greenbacker Renewable Energy Corporation | Greenbacker Renewable Energy | — |
| Owner(s) | Greenbacker Renewable Energy Corporation | Greenbacker Renewable Energy Co LLC | — |
| Status | Operating | operating | — |
GEM identifies the owner as Greenbacker Renewable Energy Co LLC
This entity is not yet in the GEM ownership database — chain unavailable.
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
Grid Region
Mountain West
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
3.0K MWh
Latest Month
149.0K MWh
Annual Generation
21.3%
Capacity Factor
Data from 2023
$34.8/MWh
PPA Price
$32.6/MWh
LCOE
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 MTSUNNorthWestern Energy (NWMT) (NWMT)
Grid Voltage
230.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP