NorthWestern Energy (Electric) - Commercial Energy Efficiency Rebate Program

July 26, 2023


NorthWestern Energy offers multiple rebate programs for commercial and industrial customers to make energy efficient improvements to their businesses. This includes lighting, heating, irrigation equipment, VFDs, refrigeration, air conditioning, appliances, and water heating incentives. Equipment requirements and specific rebate amounts can be found on the program web site. All rebates associated with this program are subject to adjustment on June 30th, 2024.

Program Overview

Implementing Sector: Utility
Category: Financial Incentive
State: Montana
Incentive Type: Rebate Program
Web Site:
Administrator: NorthWestern Energy
Start Date:
Eligible Renewable/Other Technologies:
  • Refrigerators/Freezers
  • Equipment Insulation
  • Water Heaters
  • Lighting
  • Lighting Controls/Sensors
  • Chillers
  • Heat pumps
  • Air conditioners
  • Programmable Thermostats
  • Duct/Air sealing
  • Motors
  • Motor VFDs
  • Other EE
  • Insulation
  • Food Service Equipment
  • Commercial Cooking Equipment
  • LED Lighting
  • Commercial Refrigeration Equipment
  • HVAC
Incentive Amount: Lighting: Varies by measure, see application form

Air Conditioning:
High Efficiency Direct Expansion (DX) Unit: $50/chiller ton
High Efficiency Air Source Heat Pump: $100/chiller ton
High Efficiency Air Cooled Chiller: $75/chiller ton
High Efficiency Water Cooled Chiller: $100/chiller ton

Anti-Sweat Controls - Medium Temperature: $25/door
Anti-Sweat Controls - Low Temperature: $30/door
ECM Motors - Refrigerated/Freezer Evaporator: $0.75/watt installed
R-3 Pipe Insulation - Refrigerator Suction Pipe: $2.00/linear foot
Variable Speed Drive - Refrigerator Compressor: $20/motor HP

Water Heating:
Faucet Aerator - Kitchen: $1.25/unit
Low-Flow Showerhead: $5.00/unit
Hot Water Tank Insulation: $15.00/unit

Additional Measures:
Electric Steam Cooker: $250/unit
Variable Speed Drive (VFD): $40-$75/motor HP
ECM Evaporator: $1.00-$1.25/watt installed
Cooking Hood Demand Control System: $0.75/CFM Make-up Air
Canned Lighting - Air Tight Sealing: $1.50/unit
HVAC Demand Control Ventilation: $50/HP supply fan
ECM Motors - Non-Refrigerated/Freezer Evaporator: $1.00/watt
Variable Speed Drive - Air Compressor: $65/HP
Notched V-Belt - HVAC Fans: $1.00/HP fan
Timer - Engine Block Heater: $10.00/unit
Variable Speed Drive - Irrigation Pump: $65/HP
Equipment Requirements: Varies by product, see application forms


Name: Customer Service Commercial Rebate Program
Address: PO Box 1167
Helena MT 59624
Phone: (800) 823-5995

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.