Insulation

Energy efficient insulation

Get $2,175 cash back*

*Based on installing 1,500 sq. ft. of attic insulation, 1,500 sq. ft. of floor insulation and 900 sq. ft. of wall insulation in an electrically heated home.

Important! Rocky Mountain Power’s planned changes to the incentives and equipment qualifications associated with our energy efficiency program became effective April 14th. For questions or additional clarification, please email us.

Don’t hesitate. Insulate.

Upgrade your insulation and earn cash back for every square foot. There’s no easier way to prepare your home for the chill of winter and the dog days of summer. By installing qualified insulation, you can save hundreds of dollars a year on heating and cooling, which makes this simple upgrade the very definition of wattsmart.

Qualifications & Incentives

Contractor Installed

Qualified Contractor-Installed Insulation

Electrically Heated
Homes Incentive

Electrically Cooled
Homes Incentive

Attic Insulation $0.50 sq/ft $0.15 sq/ft
Wall Insulation $0.65 sq/ft $0.30 sq/ft
Floor Insulation $0.50 sq/ft N/A


​Customer Installed

Self-Installed Insulation

Electrically Heated
Homes Incentive

Electrically Cooled
Homes Incentive

Attic Insulation $0.25 sq/ft $0.15 sq/ft
Wall Insulation N/A N/A
Floor Insulation $0.25 sq/ft N/A
  • Home must have an electric heating system or an electric cooling system serving at least 80 percent of the home’s conditioned floor area.
  • Electrically heated home incentives apply to houses with a permanently installed electric furnace, heat pump or electric zonal heating systems (baseboard or ceiling/wall heaters). Space heaters do not qualify.
    • Homes with an electric heating system and a central air conditioner only qualify for the “Electrically heated home” incentives.
  • Electrically cooled home incentives apply to houses with a permanently installed ducted electric central air conditioner and a non-electric (gas, oil or propane) heating system.
  • Contractor-installed and self-installed work must be performed in accordance with the Idaho Weatherization Installation Checklist in the Idaho Weatherization Trade Ally Manual.
  • For self-installers: projects will be paid on materials only. (Note: Wall insulation is not eligible for self-install)
  • For all businesses receiving incentives: provide a copy of completed W-9, if applicable.
  • Insulation must be installed between conditioned and unconditioned space in order to qualify for incentives.
  • A finished or conditioned living space has a permanently installed heating or ducted cooling system.
  • Unconditioned spaces exist outside of the home’s thermal boundary (e.g., garages, crawlspaces, the exterior of a home, and potentially a basement).
  • Insulation incentives are available on existing homes only. Work performed as part of building code requirements is not eligible for an incentive.
  • Incentives are limited to one insulation incentive per type (attic, floor, and/or wall insulation) for the lifetime of the home.
  • Incentive application and required documents must be postmarked within 90 days of work completion

Attic insulation

  • Pre-existing insulation levels must be R-20 or less
  • Final insulation depth must be R-49 or greater

Floor insulation

  • This incentive is only available for homes with an electric heating system serving at least 80 percent of the conditioned living area.
  • Electric cooling is not sufficient to meet the requirement for a floor insulation incentive
  • Pre-existing insulation levels must be R-18 or less
  • Final insulation level must total R-30 or greater
  • Floor insulation must be installed between conditioned and unconditioned space in order to qualify for incentives (basement floors do not qualify)

Wall insulation

  • Contractor must install insulation to qualify for an incentive. This incentive is not available to self-installers.
  • Existing insulation levels must be R-4 or less
  • New insulation added must be minimum R-13 or fill cavity
  • Only exterior-facing walls qualify. Interior walls, such as walls between rooms, do not qualify.
  • Basements must be finished or conditioned living space (permanently installed heating or ducted for cooling) in order to qualify.
  • Insulation along rim joists does not qualify.

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 accountholder.

How to Apply

Insulation may be self-installed by homeowners or installed by a contractor. Customers interested in using a contractor can find a participating contractor using the Idaho Participating Weatherization Contractors list. When choosing to use a contractor, review the Incentive Application with them to determine eligibility requirements, incentive qualifications and review the list of required documents to submit for an incentive.

Incentive Application and required documents must be postmarked within 90 days of the completed service (the date the work is completed). Insulation must be fully installed prior to submitting an Incentive Application. Incentive checks are issued within 45 days of receipt of the completed and approved Incentive Application. Checks are only payable to the account holder or property. Incentives are not to exceed the project cost and are limited to the square footage of the qualified area of the home (wall, floor or attic). Work may be inspected for compliance. Incentives are subject to tariff approval and may change with 45 days notice. Additional terms and conditions may apply.

Self-installers are eligible for incentives on materials only and documentation of R-values and square footage must be provided. This information will be listed on the register receipt or insulation packaging.

To ensure your home is eligible for an incentive and below the maximum insulation depth requirements, please use the insulation depth calculator. Prior to your contractor recording measurements, take a peek in your attic and do it yourself!