2023 Residential

Why should you invest in energy efficiency?

The Sustainable Energy Program provides financial incentives to encourage residential and business customers to make energy-efficiency improvements.

How does the program work?

All projects require LES preauthorization.

  1. Funds are available on a first-come, first-served basis beginning Jan. 1, 2023.
  2. Visit to see the list of participating contractors.
  3. Contact one or more of the SEP participating contractors for bids and available incentives.
  4. Ask your accountant if the project qualifies for a federal tax credit.

What projects are eligible for incentives?

High-efficiency heat pumps and air conditioners

Residential customers are eligible for incentive payments when replacing existing cooling systems or installing them in newly built homes. Customers could receive $800 for air source heat pumps and $600 for air conditioners, and up to $1,500 for geothermal, based on the unit’s energy-efficiency rating.

Whole-house sealing and insulation

Up to $1,000. Existing homes with no wall or minimal attic insulation (R-19 or less) can qualify for incentives to upgrade insulation levels to current code standards:

$0.80 per square foot wall insulation.
$0.50 per square foot attic insulation.

Pre- and post-blower door (home air leakage) tests are required for each project.

Heat pump water heaters

Customers could receive $500 per qualifying heat pump water heater that is 40 gallons or larger. Heaters with a tank size of 40 to 55 gallons must have a UEF (efficiency rating) of at least 2.0. Heaters above 55 gallons must have a UEF of at least 2.2. All units accepted into the program must be listed by ENERGY STAR® and can be installed in an existing or new home or commercial building. The water heater must be installed in an unconditioned or partially conditioned room that provides at least 1,000 cubic feet of surrounding air.

Visit our website for complete incentive descriptions.
Incentives are also available for commercial customers.