new homes

Get up to $2,025 cash back

Get up to $2,025 cash back

How to apply

Step 1

Hire and work with a verified rater.

Step 2

Complete the Wattsmart New Homes builder application and enroll prior to starting your project.

Step 3

Contact the program if payment needs to forward to a third party not listed on the utility account.

Step 4

Your Rater will submit a completed incentive application with all required documentation within 90 days of the Certificate of Occupancy issuance date.
Responsive image

Build for a brighter future

Rocky Mountain Power offers builders the opportunity to receive cash incentives for building Wattsmart HERS rated homes that are more efficient than current energy code requires. Stand out and show your commitment to quality with homes that deliver superior comfort, greater durability and lower energy costs.

Qualifications and incentives

Performance measuresIncentive for electrically cooledIncentive for electric heat
HERS 70-63$200$400
HERS 62-54$400$800
HERS 53 or lower$600$1,200
Stand-alone measures*RequirementBuilder IncentiveContractor Incentive
Air source heat pump$400
Dual fuel heat pump$2,000$300
Ductless heat pumpSingle head$750
Ductless heat pumpMulti head$1,300
Ductless heat pumpSupplemental$100
Heat pump water heaterNEEA tiers 1-4up to $550up to $200
WindowsU-factor 0.22 or lower , Electrically heated homesup to $3.00/sq.ft.
WindowsU-factor 0.22 or lower , Electrically cooled homesup to $0.50/sq.ft.

Ensure single-family home qualifies:

  • Must be new construction, not an existing home.
  • Electrically cooled or heated homes qualify

HERS program rules:

  • To be eligible for gas heat HERS incentives, an air conditioner must be installed and included in the HERS modeling.
  • Home must be site built and verifiable and testable following ENERGY STAR and RESNET™ requirements.
  • Homes that are built off-site but follow the state/local/regional codes qualify for new construction incentives.
  • Home must meet all individual program requirements for each service completed, including homes built off site.
  • ENERGY STAR homes must meet HERS index requirements.
  • Home cannot use on-site generation to achieve HERS index.
  • HERS modeling software must be approved by RESNET™ at the time of modeling.
  • Homes must meet current code requirements for duct leakage and air infiltration.
  • Rocky Mountain Power HERS, ENERGY STAR, and Connected Thermostat measures may be combined. If seeking the ENERGY STAR incentive, the HERS index used for ENERGY STAR certification must meet the utility's HERS requirements.
  • Whole home performance measures (HERS, ENERGY STAR) cannot be combined with the stand-alone measures (CAC, HPWH, DFHP, GSHP).
  • Incentive application must be received within 90 days of the Certificate of Occupancy issuance date or equivalent from the governing municipality.

Stand-alone measure program rules:

  • Review the complete list of requirements for each stand-alone measure.
  • Home must meet all building codes and standards requirements, including homes built off site.
  • Home must meet all individual program requirements for each service completed.
  • Incentive application must be received within 90 days of the Certificate of Occupancy issuance date or equivalent from the governing municipality.
  • If applying for a multifamily property (up to 3 units per foundation), please submit one application per unit.

Required documentation for performance measures:

  • RESNET™ registered HERS file
  • Copy of HERS summary report
  • Copy of ENERGY STAR certification (if applicable)
  • Brand and model of equipment (if the home included above code equipment)

Required documentation for stand-alone measures:

  • Brand, model and equipment efficiency
  • AHRI certificate
Incentives are associated with the most recent tariff filing approved by the Idaho Utilities and Transportation Commission. All incentives are subject to change with 45 days notice. Additional terms and conditions may apply.

Customer eligibility

Residential electric customers residing in the state of Idaho who purchase their electricity from Rocky Mountain Power on rate schedules 1 or 36 qualify. Landlords who own rental properties served by the company in the state of Idaho where the tenant is billed on rate schedules 1 or 36 also qualify for this program. You can locate your rate schedule on your bill or by calling 1-888-221-7070. Incentive checks are only issued in the name of the Rocky Mountain Power account holder.

Application details

Prior to starting a project, builders must complete their enrollment into the Wattsmart New Homes program. Download application.

Discover savings


Responsive image

Wattsmart Kits

Get free LED bulbs and other energy-saving products.

Responsive image

Paperless billing

Go paperless and pay your bill the convenient, earth-friendly way.

Responsive image

Light your home for less

Find discount pricing on long-lasting, energy-efficient light bulbs.

Responsive image


Save on insulation that delivers year-round comfort and savings.

Responsive image

Heating and cooling upgrades

Improve your heating and cooling equipment and save with cash incentives.

Responsive image

Appliance savings

Get a great deal on new appliances that save energy and money.

Responsive image

Hot water you can count on

Get dependable water heating at a more affordable price.

Responsive image

Blue Sky

For as little as $1.95 per month, you can support new renewable energy sources.

Responsive image

Build your best home

Work with a Wattsmart builder and enjoy all the benefits of an energy-efficient home.