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MTSUN — Power plant · Solar · Greenbacker Renewable Energy Corporation
  • Wind & solar
  • Operating
  • 10 · 100 · 1,000 MW

Mtsun

Power plant · Solar

As filed: MTSUN

Key facts

Power plant · Solarran 21% of 2025 Operating
Capacity
Capacity: sourceEIA-860M · Open licenseMW
Commissioned
2023
Net generation, 2025
149,035 MWh
Grid
230 kV to NorthWestern Energy LLC - (MT) (NWMT)
Location
Yellowstone County, Montana
Operated by
Greenbacker Renewable Energy CorporationSourceEIA-860M Preliminary Monthly Electric Generator Inventory
Net generation, 2025
149,035MWh
Fuel burned, 2025
508,505MMBtu
Capacity factor, 2025
21.3%
Heat rate, 2025
Not stated
Capacity factor % of full output, by year
YearNet generation (MWh)Fuel burned (MMBtu)Capacity factorHeat rate (Btu/kWh)
2026 (8 of 12 months)84,581288,590——
2025149,035508,50521.3%—
2024173,865593,22724.7%—
2023154,224526,21322.0%—
How these are worked out

Net generation and fuel burned are the monthly figures EIA publishes in its bulk electricity file, from the plant's Form 923 reports; a year is the sum of its months. Capacity factor is a full year's net generation over today's nameplate capacity times the hours in that year (8,784 in a leap year), so a plant uprated or partly retired since reads against its current size; heat rate is fuel burned over net generation, for plants that burn fuel. A year with fewer than twelve months stated has no capacity factor, and a value outside the plausible range is left blank rather than shown. By month, the charts apply the same rules to each month's own hours and fuel.

Sources

3 sources

Sources EIA-860M · GEM · EIA

Sources

  • EIA-860MOpen license · retrieved Nov 4, 2026
  • GEMOpen license, with credit · retrieved Oct 26, 2026Global Integrated Power Tracker, Global Energy Monitor, September 2026 release (https://globalenergymonitor.org/projects/global-integrated-power-tracker), CC BY 4.0. Modified by Inframation: TransitionZero-sourced rows removed; statuses and technologies mapped to Inframation's vocabulary; figures aggregated. Copyright © Global Energy Monitor. Global Integrated Power Tracker, September 2026 release. Distributed under a Creative Commons Attribution 4.0 International License.
  • EIAOpen license · retrieved Nov 1, 2026Source: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)

Every source and license · Attribution

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