Residential or Business Customer Service, weekdays 7 am - 6 pm
NorthWestern Energy 11 E. Park St. Butte, MT 59701-1711
Complete the online establish service request for residential accounts. If you are trying to establish service for non-residential accounts please call us.
Submit a question about your account using our online account inquiry form and a customer service representative will follow up with you. Please do not use this form to report emergencies.
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