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NorthWestern Energy Group (NWE): EPA violations

NorthWestern Energy Group (NWE) beyond its filings: 1 EPA-regulated facility in violation, no penalties in five years.

EPA facilities in violation

Facility (as registered)CityStatusPenalties
NORTHWESTERN ENERGY (ABERDEEN)Aberdeen, SDViolation Identified—

Facilities in the EPA's ECHO register whose registered name matches the company's; a facility can belong to another business of the same name.

NorthWestern Energy Group's latest quarter

NorthWestern Energy Group, Q3 2026: revenue $424M (+10% year over year), operating margin 17.6%, net earnings $30.7M, operating cash flow $131M. The chart follows the revenue to costs, profit and cash.

Questions

Has NorthWestern Energy Group been fined by the EPA?

The 115 EPA-regulated facilities on file under its name drew no penalties in five years; 1 is in violation now.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.