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Alliant Energy Interstate Power and Light (Electric) - Business Energy Efficiency Rebate Programs

Local Government
State Government
Federal Government
Retail Supplier
Multifamily Residential
Savings Category 
Geothermal Heat Pumps
Water Heaters
Lighting Controls/Sensors
Heat Pumps
Air conditioners
Programmable Thermostats
Duct/Air sealing
Building Insulation
Other EE
Food Service Equipment
Vending Machine Controls
LED Lighting
Commercial Refrigeration Equipment
Maximum Rebate 

See program web site

Program Info
Sector Name 
Alliant Energy-IP&L
Program Type 
Rebate Program
Rebate Amount 

Custom: Based on Annual Dollar Energy Savings
New Construction: Varies widely

Motors: Up to $2380/unit
VFDs: $35/HP
Programmable Thermostat: up to $50
CFL Bulbs: 50% of price
Commercial Lighting Fixtures: $6 - $120
Occupancy/Vacancy Sensors: $20-$40
LED Exit Sign Retrofit: $5 - $10
Pulse Start Metal Halide Fixtures: $25 - $50
LED Lighting/Bulbs: $10
Central Air Conditioners: $200 - $650
Room A/C: $20
Air Source Heat Pumps: $300 - $600
Geothermal Heat Pumps: $800/ton - $1,600/ton

Desuperheater: $150
Tank Water Heater: $70
Wall/Attic/Roof/Ceiling Insulation: 70% of cost, up to $5,000
Building Sealing: 70% of cost, up to $1500
Doors (Replacement): $25 - $200/unit
Commercial Refrigeration/Food Service Equipment: Varies widely
Appliance Recycling: $25/unit - $50/unit
VRF/Ductless Heat Pump: $200/outdoor unit
HVAC system tuneup: $10/ton - $20/ton
Hotel key card system: $50/control - $70/control
Chillers: $7/ton - $25/ton
Chiller pipe insulation: $2/linear foot
Electric heat pump water heater: $500
Computer technologies: $5/unit - $10/unit


Interstate Power and Light (IPL) offers a wide variety of incentives for commercial customers to save energy in eligible facilities, whether they are upgrading existing facilities or building new ones. IPL also offers a free business energy audit program. Landlords and renters of multi-family homes can also take advantage of various cash-back rewards for energy-efficient equipment in the residential and commercial programs.

Existing Facilities

IPL offers standard rebates for a variety of appliances; heating, cooling and hot water equipment; building shell improvements; lighting and ceiling fans; commercial food service equipment; premium efficiency motors and variable speed drives; and vending machine controllers. A Cash Rewards Booklet can be found on the program web site outlining incentive amounts and program guidelines.

Commercial New Construction

IPL's Commercial New Construction program offers commercial customers incentives for both the design of high efficiency buildings as well as the construction. Design team incentives are based on the square footage of the building. Construction incentives are per kilowatt-hour plus an additional per therm rebate. Further information on incentive amounts, construction specifications, and how to apply are located on the program web site.