Alliant Energy Interstate Power and Light (Gas) - Residential Energy Efficiency Program

April 05, 2017


Interstate Power and Light (Alliant Energy) offers a number of rebates for energy efficiency for Minnesota residential customers a variety of high efficiency heating and cooling measures, including water heaters, gas furnaces, gas boilers, windows, insulation, and thermostats. After completing an energy audit, a residential customer is eligible for up to $500 in rebates for attic and wall insulation. Qualifying attic insulation will have a rating of R-19 to R-38. More details, the incentive application, and an energy audit request form are available on the program web site.

Customers are eligible for room air conditioners and water heaters through the Appliance Rebate Program. Room air conditioners qualify for a rebate of $25 and water heaters qualify for a rebate of $50. Room Air Conditioners are limited to a maximum of three rebates.  Qualifying windows and sashes are eligible for a rebate of $20; windows should be certified by the National Fenestration Rating Council and have a rating of a least .35 or less U-Factor.  Further information can be found at the program web site.

Program Overview

Implementing Sector: Utility
Category: Financial Incentive
State: Minnesota
Incentive Type: Rebate Program
Web Site:
Administrator: Alliant Energy-IP&L
Start Date:
Eligible Renewable/Other Technologies:
  • Geothermal Heat Pumps
  • Water Heaters
  • Programmable Thermostats
  • Building Insulation
  • Windows
  • Comprehensive Measures/Whole Building
  • Other EE
Incentive Amount: ENERGY STAR New Construction: $600-$3,500/home
Home Energy Audit: Free
Programmable Thermostats: $25
Insulation: 70% of cost up to $750
Water Heaters: $50
Windows/Sashes: $20/each
Appliance Recycling: $20
Maximum Incentive: Insulation: $500
Eligible System Size: Windows/Sash: minimum size of 8 sq. ft. each.
Equipment Requirements: Programmable Thermostats: must be Energy Star rated
Attic Insulation: Insulation must be minimum R-19 and a maximum of R-38
Windows/Sash: Must be Energy Star rated for northern climate zone (U-factor .35 or less)
Installation Requirements: Alliant Energy must supply primary heating energy.
Home must be built before January 1, 2001.
Renters need owner™ prior approval (Alliant Energy can contact owner).
A Home Energy Audit must be completed before new insulation is installed.


This program has 4 incentives
Technologies: Water Heaters
Sectors: Construction, Residential
Parameters: The incentive is 50.00 $/Unit
Technologies: Programmable Thermostats
Sectors: Construction, Residential
Parameters: The incentive is 25.00 $/Unit
Technologies: Building Insulation
Sectors: Construction, Residential
Parameters: The incentive has a minimum of $750.00
Technologies: Comprehensive Measures/Whole Building
Sectors: Construction, Residential
Parameters: The incentive has a maximum of 600.00 $/Unit, The incentive has a minimum of $3.00


Name: Customer Assistance - IPL Residential Efficiency
Address: 4902 North Biltmore Lane
Madison WI 53707-1007
Phone: (800) 255-4268

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.