---
schema_version: "secwatch.filing_event.v1"
accession: "0001993004-24-000066"
form_type: "8-K"
ticker: "NWE"
cik: "0001993004"
company_name: "NorthWestern Energy Group, Inc."
filed_at: "2024-07-15T23:59:59+00:00"
generated_at: "2026-05-31T20:51:57.548562+00:00"
event_type: "regulatory"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# NorthWestern Energy files rate reviews seeking $194.7M annual revenue increase across four jurisdictions

## Summary
- Montana electric rate review seeks $156.5M base increase ($69.4M net) from $874M plant investment; typical bill +$2.09/mo interim, +$9.11/mo final.
- Montana gas rate review seeks $28.6M increase from $174M investment; typical bill +$4.81/mo interim, +$8.84/mo final.
- South Dakota gas rate review seeks $6.0M increase from $80M infrastructure since 2010; typical bill +$8.38/mo.
- Nebraska gas rate review seeks $3.6M increase from $42M infrastructure since 2007; typical bill +$7.54/mo.

## SEC filing metadata
- accession: 0001993004-24-000066
- form_type: 8-K
- ticker: NWE
- cik: 0001993004
- company_name: NorthWestern Energy Group, Inc.
- filed_at: 2024-07-15T23:59:59+00:00
- event_type: regulatory
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 7.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1993004/000199300424000066/0001993004-24-000066-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1993004/000199300424000066/nwe-20240715.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001993004-24-000066
- JSON: https://secwatch.observer/filing/0001993004-24-000066.json
- Plain text: https://secwatch.observer/filing/0001993004-24-000066.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.