Holter is a 55 MW Conventional Hydroelectric asset in Montana, currently Operating.
Holter is reported in Montana since 1918 under NorthWestern Energy Group. Available operating and financial measures include 55.4% capacity factor and 266 GWh annual generation; $763/kW reported CapEx.
- Location
- Cascade, Montana
- Technology
- Conventional Hydroelectric
- Owner / parent
- NorthWestern Energy Group
- Operator
- NorthWestern Energy (MT Hydro)
- Grid
- NorthWestern Energy (NWMT)
- Plant ID
- 2186
What stands out
Holter is a 55 MW Conventional Hydroelectric asset in Montana with status Operating.
Latest annual operating measures report 55.4% capacity factor and 266 GWh annual generation.
Available financial measures include $4.2/MWh OpEx, $763/kW CapEx.
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
- #13 of 23
- National rank
- #284 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.
