An energy audit must be performed prior to the installation of measures to be eligible for rebates. Lewis County PUD provides energy audits at no charge to current customers.

Available Programs

Ductless Heat Pumps

Eligibility Requirements

Existing site-built single family and manufactured homes that heat with electric zonal heating or an electric forced air furnace may be eligible for the ductless heat pump (DHP) grant. Contractor installed equipment must meet efficiency ratings, with a limit of one grant per home.

Homes not heated electrically are not eligible for grants, please contact your fuel provider for incentives (homes with wood heating systems and supplementary gas stoves and fireplace inserts may be eligible—please contact Energy Services staff for more information).

Equipment Requirements

Ductless heat pump must have an AHRI Certificate documenting the minimum efficiency rating of 7.5 HSPF2.


  • 12k-15k BTU Outdoor Unit: $4,600
  • 18k BTU Outdoor Unit: $4,800
  • 24k BTU Outdoor Unit: $5,000


Windows and Insulation (Weatherization)

Eligibility Requirements

Existing site-built single family and manufactured homes that are electrically heated may be eligible for window grants. Only site-built homes are eligible for insulation grants (please see table below for pre-existing insulation requirements). Existing windows/patio doors must be single pane or double pane metal to be eligible.

Insulation Rebates
Attic InsulationFloor InsulationWall Insulation
R ≤ 19 to R – 38/49R – 0 to Fill CavityR – 0 to R Fill Cavity
100% Installed Cost100% Installed Cost100% Installed Cost

Window Rebate

New Windows must be NFRC rated and have a U-value of .30 or lower (.29, .28, etc.).
$20 per square foot

Program Participation

Steps to Participate
  1. Submit low-income application (see program documents below) and schedule energy audit.
  2. After your initial audit is completed you will receive a list of eligible measures for your home.
  3. The District offers a courtesy list of area contractors, available in our Chehalis and Morton offices, and our low income packet below.
  4. Approved low income customers must obtain a minimum of two bids and submit them to energy services for review.
  5. A verification of the measures installed will be conducted by a member of our energy services team to ensure the installed measure(s) meet program specifications (see below).
  6. The Conservation Participation Agreement must be completed prior to receiving a rebate. If the homeowner and account holder are different parties, both parties must complete and submit the conservation participation agreement before an incentive can be processed. This form is available by using our online form or by completing the program packet, both found below.
Conservation Participation Agreement

"*" indicates required fields

Thank you for your interest in the District’s Residential Conservation Programs. If you decide to participate in this program, it will be necessary for you to provide some information which may be used to assist in the development of new programs and assess actual energy savings obtained. The information may be released to the public, but only in anonymous, statistical form.
In consideration of receiving the benefits and payments under the Residential Conservation Program, I agree that I will not make any claim or demand against the Public Utility District No. 1 of Lewis County and hereby release and discharge the District from any and all claims, demands, liabilities, suits, or causes of action, for any damage, injury or death allegedly arising, resulting or which may in the future result, directly or indirectly, from the measure(s) installed under the Residential Conservation Program. All program measures must be completed to meet state and local codes, it is the responsibility of the homeowner and chosen contractor to secure all necessary and required permits.
Participation in any District incentive, rebate, program, or conservation measure is subject to any and all associated program and funding requirements. These requirements may be included but not limited to the underlying funding source obligations such as grant requirements, federal funding requirements, state funding requirements, District funding requirements, etc.
The customer agrees that Public Utility District No. 1 of Lewis County has no responsibility for production of energy savings estimated to result from this program. The customer agrees not to hold the District responsible for any direct or consequential damages which arise out of, or in connection with, the lack of production of energy savings.
Once all information is collected, verified, and approved, the incentive will be processed and sent to the party selected above. One reimbursement per residence is allowed. Please allow six to eight weeks for delivery.
I hereby verify the information provided on this form to be true and complete. I understand that by typing my full name below and submitting this information, this form will be stamped with today’s date and authorized by me as if I had signed my signature. I certify under penalty of perjury of the state of Washington that I am the individual named in the electronic signature block.
MM slash DD slash YYYY
This field is for validation purposes and should be left unchanged.

Program Documents

Application packets are also available in our Chehalis and Morton offices. Completed packets can be turned in using the contact information included in the packet, or by using the contact form below.