NorthWestern Energy - Solar Hot Water Rebate Program

April 07, 2004


NorthWestern Energy electric distribution customers may qualify for a rebate of $3,000 for the installation of a solar hot water system on their home. This program is administered by the National Center for Appropriate Technology (NCAT) using funds collected from NorthWestern Energy's electric customers as part of the NorthWestern Energy's Universal Systems Benefits (USB) program. The new system serves as a pre-heater to the existing water heaters. While the systems won’t supply all hot water needs, they will substantially reduce energy use. System size and energy savings will vary according to family size and hot water usage. NCAT will specify the systems, which will be installed by contractors. The systems include solar collectors, associated plumbing, an additional water take and provide freeze protection allowing them to operate year-round. Participants in the solar water heating project must be active NorthWestern Energy electric customers, but water heaters may be gas or electric. NCAT will install equipment to monitor system performance. Completed applications must be submitted to NCAT by April 4, 2003. Approximately 12 systems will be installed using 2003 funds.

Program Overview

Implementing Sector: Utility
Category: Financial Incentive
State: Montana
Incentive Type: Rebate Program
Web Site:
Administrator: National Center for Appropriate Technology
Start Date:
Eligible Renewable/Other Technologies:
  • Solar Water Heat
Incentive Amount: $3,000 per system
Eligible System Size: Approximately 12 systems will be installed in 2003


Name: John Walden
Organization: National Center for Appropriate Technology
Address: 3040 Continental Drive
Butte MT 59701
Phone: (866) 723-8677

This information is sourced from DSIRE; the most comprehensive source of information on incentives and policies that support renewables and energy efficiency in the United States. Established in 1995, DSIRE is operated by the N.C. Clean Energy Technology Center at N.C. State University.