After your Home Performance with ENERGY STAR ® audit is complete, your program-approved contractor will recommend a variety of energy efficiency improvements for your home that may qualify for rebates of up to $7,500*. Your program-approved contractor or Energy Advisor will submit a rebate reservation on your behalf to ensure funds are available.

Through the Home Performance with ENERGY STAR Program, more than 5,000 Delaware property owners have taken advantage of the program to lower their energy costs and make their homes safe and more comfortable.

Rebate-Eligible Measures - Effective November 1, 2017

Rebates are available for property owners, including rental property owners, who complete an energy audit conducted by a program-approved auditor/contractor. The property owner and their selected program-approved auditor/contractor must review the energy audit report which details a prioritized list of energy improvements/upgrades. After this review, the selected program-approved auditor/contractor will make a rebate reservation on behalf of the property owner to secure the rebates for the selected rebate-eligible work. Property owner must receive a rebate reservation confirmation before beginning any work.

  • Rebates are capped at 50% of the total installed cost up to the incentive level indicated; whichever is lower.
  • Excludes geothermal heat pumps. Visit for more information on available geothermal heat pump rebates through Delaware's Green Energy Program
Measure New Rebates
(starting 11/1/17)
Assisted Home Performance
& DDD Rebates

(starting 11/1/17)
Home Energy Audit $300 $350
Weatherization Measures
Air Sealing 20% Improvement $350 $450
Air Sealing 30% Improvement $600 $800
Air Sealing 40% Improvement $750 $1000
Duct Sealing 20% Improvement $425 $600
Duct Sealing 30% Improvement $675 $900
Add R-20 Attic Insulation $600 $800
Add R-30 Attic Insulation $700 $900
Knee Walls $225 $300
Crawlspace Wall Insulation $600 $800
Floor Insulation (open crawl) $600 $800
Rim Joist $150 $200
Wall Insulation (min 50% of walls) $1,300 $1,800
HVAC and Water Heating Measures

HP Tier 1: =>14.5 SEER and => 12 EER
and => 8.2 HSPF

Discontinued Discontinued
HP Tier 2: =>16 SEER and => 12.5 EER
and=> 8.5 HSPF
$600 $800
HP Tier 3: =>17 SEER and => 12.5 EER
and=> 8.5 HSPF
$900 $1,200
Mini-Split =>17 SEER and => 13 EER $600 $900
Mini-Split =>21 SEER and => 13 EER $900 $1,000
CAC Tier 1: => 14.5 SEER and => 12 EER Discontinued Discontinued
CAC Tier 2: => 16 SEER and => 12.5 EER $600 $900
CAC Tier 3: => 17 SEER and => 12.5 EER $700 $1,000
Furnace Tier 1: => 90 AFUE Discontinued Discontinued
Furnace Tier 2: => 94 AFUE $600 $900
Furnace Tier 3: => 96 AFUE $750 $1,000
Boiler ≥ 85 AFUE $750 $1,000
Boiler ≥ 90 AFUE $900 $1,100
Heat Pump Water Heater $600 $800
Natural Gas/Propane Tankless Instantaneous
Water Heaters
$600 $800

New rebates levels went into effect on November 1, 2017. View rebates available for reservations made through October 31, 2017.


  • Residential properties located in Delaware containing 4 or less units per building are eligible. Condos and apartments are not eligible.
  • To participate in the program, property owner must receive a home energy audit conducted by an approved Energize Delaware auditor/contractor or Energy Advisor.
  • Rebates are available for installation of qualified energy improvements/upgrades by program-approved contractors (this is not a DIY program - rebates are not awarded for self-installed upgrades).
  • Property owner must receive a rebate reservation confirmation to be eligible for any rebates under this program. DO NOT begin any rebate-eligible upgrades until you have received this rebate reservation confirmation by email.
  • Your program-approved auditor/contractor must submit documentation of your completed rebate-eligible upgrades to the Energize Delaware Home Performance program within 90 days of your rebate reservation confirmation else your rebate reservation will expire.

Energize Delaware now offers financing to help property owners move forward with energy efficiency projects.

Ready to schedule your Home Energy Audit? Contact one of our participating contractors or click here to request an appointment with an Energy Advisor.

Rebate Reservation System - Click here to learn more about the rebate reservation system that your Energy Advisor or participating contractor will submit.

*To qualify for the up to $ 7,500 in rebates, the Home Energy Audit must be completed, rebate reservation secured by a Participating Contractor. To receive your rebate, your program-approved contractor must submit documentation of the completed project within 90 days of your reservation confirmation.