NorthWestern Energy Homepage
NWE Contact Bar, in Montana dial 1-888-467-2669, in South Dakota or Nebraska dial 1-800-245-6977
Important Message  Due to a system maintenance scheduled to begin at 6pm on Thursday, November 14th, our Contact Centers will be staffed for emergency purposes only on Friday, November 15th and our Walk-in Offices will be closed on Friday, November 15th. Normal business hours will resume on Monday, November 18th. Access to Online Customer Care services will be unavailable during this system maintenance.

The E+ Energy Audit for the Home offers two types of audits: on-site energy audits and mail-in survey audits.

On-site Energy Audits: Our trained specialists come to your home and analyze your home’s energy usage.  You’ll receive tips to manage your energy usage more effectively, a customized report with recommendations of cost-effective energy improvements and information which may help you make appropriate investments. 

The audit may include the following:

  • Blower door test to detect areas of leakage
  • Water heater temperature check
  • Refrigerator/freezer temperature check
  • Gas equipment safety check
  • Insulation evaluation
  • Free water heater tank wrap
  • Free hot water pipe insulation
  • Free low-flow faucet aerators and showerhead

Energy auditors offer customers education on how lifestyle and habits affect energy use.

Customers receive a report specific to their home and energy use habits. The report:

  • Breaks out historical energy usage by end-use
  • Provides recommendations on cost-effective weatherization measures
  • Offers tips on energy-efficient practices and gas appliance maintenance

Your home likely qualifies if:

  • You are a NorthWestern Energy residential natural gas or electric space- or water-heating customer in Montana.   
  • Your home is at least five years old
  • Your home has not received an E+ Audit since September 25, 1994

Other qualifications may apply. Funding is limited.

How to Sign Up: For an on-site energy audit, call (800) 823-5995 or online. 

Mail-In Survey Audit
A survey is mailed out automatically to customers with specific electric consumption profiles. Customers who fill out and return the survey receive a report that breaks out historical electricity usage by appliance end-use and makes recommendations specific to the way those appliances are operated in the customer’s home. The report offers general weatherization and water heating recommendations as well.

Eligibility: Residential customers in Montana who use electricity delivered by NorthWestern Energy for lights and appliances only are eligible for a mail-in survey audit.

Funding Source
Funding for the E+ Energy Audit for the Home is provided through NorthWestern Energy's Universal System Benefits (USB) activities. 


Contact Us | Terms of use | Glossary | PO Terms & Conditions | EEO | ©2016 NorthWestern Energy. All rights reserved.