Thompson Falls

Power plant · Hydro

Key facts

Power plant · Hydro Operating

Commissioned: 1915
Net generation, 2025: 439,753 MWh
Grid: 115 kV to NorthWestern Energy LLC - (MT) (NWMT)
Location: Sanders County, Montana
Operated by: NorthWestern Energy (MT Hydro)SourceEIA-860M Preliminary Monthly Electric Generator Inventory

Net generation MWh by year, 2001 to 2025

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All 7 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory

Attributes
Attribute	Value
Gem	Unit ids G100000603982 Location id L100000603944
Grid	Nerc region WECC Report year 2025 Grid voltage kv 115 Transmission owner NorthWestern Energy LLC - (MT) Balancing authority code NWMT Balancing authority name NorthWestern Energy (NWMT)
Eia status	By code OP Mw 91.10 Units 6 OS Mw 7 Units 1 Standby mw 0 Status rule some_units_idle In service mw 98.10 Out of service mw 7
Fuel burned (MMBtu), 2025	1,500,438
Capacity factor, 2025	0.512
Net generation (MWh), 2025	439,753
Balancing authority code	NWMT

4 sources

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)
EIA-860M Preliminary Monthly Electric Generator Inventory