Query
Thompson Falls
Type
Entity Briefing
Entity
Thompson Falls
Generated
2026-10-19T12:06:49.189Z

Briefing on Thompson Falls

Entity Briefing
Generated Oct 19, 2026·Dataset freshness not reported
98 MW
Capacity
Operating
Current status
1915
Operating since
7
Generators
50.6%
Capacity factor
436 GWh
Annual generation
Briefing/plantOperating

Thompson Falls is a 98 MW Conventional Hydroelectric asset in Montana, currently Operating.

Thompson Falls is reported in Montana since 1915 under NorthWestern Energy Group. Available operating and financial measures include 50.6% capacity factor and 436 GWh annual generation; $1032/kW reported CapEx.

Location
Sanders, Montana
Technology
Conventional Hydroelectric
Owner / parent
NorthWestern Energy Group
Operator
NorthWestern Energy (MT Hydro)
Grid
NorthWestern Energy (NWMT)
Plant ID
2195

What stands out

1

Thompson Falls is a 98 MW Conventional Hydroelectric asset in Montana with status Operating.

2

Latest annual operating measures report 50.6% capacity factor and 436 GWh annual generation.

3

Available financial measures include $3.5/MWh OpEx, $1032/kW CapEx.

4

Latest linked story: “NorthWestern Energy Reports 2025 Financial Results” (Business Wire, 2026-02-11).

Market and operating context

Balancing authority
NorthWestern Energy (NWMT)
NERC region
WECC
State rank
#7 of 23
National rank
#197 of 1,462

Why it matters

For this asset, operating status, generation, ownership, and linked events are the primary facts for performance and asset-level diligence. The exact chart and source-linked records below let the reader test those facts before moving to a deeper report.