Residential Energy Efficiency Rebates
Residential Energy Efficiency Rebates
The City of Naperville Electric Utility is offering rebates for homeowners who install energy-efficient attic insulation and replace single-pane windows.
- To qualify for the rebate, applicants must be residential Naperville Electric Utility customers who own or rent their residence.
- Improvements must be purchased and installed after Jan. 1, 2022.
- The rebates are limited to 50% of the project, including material and installation, with a $3,000 maximum rebate for each energy-efficient improvement.
- Customers could qualify for a maximum rebate of $6,000, if they installed both attic insulation and energy-efficient windows.
- Rebates will end when all funding is allocated.
- Applicants must provide a copy of their current utility bill showing they are a contributor to the Renewable Energy Program at the $5-per-month level or above. Renewable Energy Program contributions are the source of funding for these rebates. For more information and to sign up for the program, visit www.naperville.il.us/renewable.
Apply for an Attic Insulation Rebate
Apply for an Energy-Efficiency Window Replacement Rebate
Attic Insulation
The final level of insulation, (pre-existing and new) must have a minimum R-Value of R-49. A final insulation depth of at least 15” will be considered sufficient to reach the required R-49 value for the rebate. It is strongly recommended that homeowners request their insulation contractor to include an Air Seal step as part of the attic insulation project.
Here are some tips for applying for the rebate.
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Attic Insulation R-value of Materials and Depths: $1 per square foot/$3,000 maximum rebate |
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Material |
R-value per inch |
R-value at 15” |
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Fiberglass (batt) |
3.1-3.4 |
46.5-51.0 |
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Fiberglass (blown) |
2.2-4.3 |
33.0-64.5 |
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Mineral Wool (batt) |
3.1-3.4 |
46.5-51.0 |
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Mineral Wool (blown) |
3.1-4.0 |
46.5-60.0 |
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Cellulose (blown) |
3.2-3.7 |
48.0-55.5 |
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Window Replacement
Windows must have a U-factor of 0.30 or lower.
- The grant amount is $300 per window, with a $3,000 maximum award.
- The window must separate a heated space from an unheated space and must replace a single-pane window with a double- or triple-pane window.
According to the Department of Energy, heat gain and heat loss through windows are responsible for 25% to 30% of residential heating and cooling energy use. For windows, the rate of heat loss is indicated in terms of the U-factor. The lower the U-factor, the greater a window’s resistance to heat flow and the better its insulating value.
Here are some tips for applying for the window replacement rebate.
For more information, please contact Bernie Saban at sabanb@naperville.il.us.
Furnace Blower Motor and AC Tune-Up
Rebates are being offered to City of Naperville Electric Utility residential customers who upgrade their furnace blower motor and/or have an air conditioning unit tune-up (once every three years). The furnace blower motor rebate is only for those residential customers who replace their old furnace blower motor. It is a rebate of the lower up to $100 and 50% of the customer’s cost. The air conditioning tune-up rebate program is $25 and is available to residential customers once during each three-year period. Residential customers must contribute to the Naperville Renewable Energy Program at the $5 per month or above level for a minimum of two years. More information is available in the application.