Going solar in Idaho

In Idaho, an average home needs a 8kW solar system in order cover most of their electricity needs. Given the average residential price-per-watt of $3.7 in Idaho, a 8kW system can cost around $29,600 depending on applicable rebates and other factors.

Select your county by clicking on the map and see the potential generated solar power and panel pricing. See how it compares with the US state average.

Average out-of-pocket cost for a 5 kW system The upfront amount spent to buy and install solar.
Idaho: $18,500US Average: $19,594
Average Payback Period The number of years until you break even on the solar investment.
Idaho: 15 yearsUS Average: 13 years
Average Net 20-year savings The total amount of money saved over 20 years minus the out-of-pocket cost.
Idaho: $5,393US Average: $10,133

Solar Potential in Idaho

Estimated system size and solar electricity production per median viable roof in
Idaho.

Roof size 787sq. ft.
Capacity 11kW DC
Electricity 15.3kkWh AC per yr.

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Compare solar panels by system size in Idaho

Get the most value out of your roof by comparing the different benefits a given system size has.

System Size 4kW
Roof Size Min. space required
286 ft²
Electricity Value Annual Production $624 a year
Est. Price
$14,800
Savings from a 4kWthis system
  • Est. yearly production 6,130 kWh
  • Est. monthly savings $52
  • Full payback in 24 years
Environmental Impacts
  • Reduces CO2 emissions by 1.55 tons a year
  • Equivalent to planting 71 trees a year
  • Equivalent to driving 3,844 mi less a year
System Size 5kW
Roof Size Min. space required
358 ft²
Electricity Value Annual Production $780 a year
Est. Price
$18,500
Savings from a 5kWthis system
  • Est. yearly production 7,663 kWh
  • Est. monthly savings $65
  • Full payback in 24 years
Environmental Impacts
  • Reduces CO2 emissions by 1.94 tons a year
  • Equivalent to planting 89 trees a year
  • Equivalent to driving 4,805 mi less a year
System Size 6kW
Roof Size Min. space required
429 ft²
Electricity Value Annual Production $936 a year
Est. Price
$22,200
Savings from a 6kWthis system
  • Est. yearly production 9,196 kWh
  • Est. monthly savings $78
  • Full payback in 24 years
Environmental Impacts
  • Reduces CO2 emissions by 2.33 tons a year
  • Equivalent to planting 107 trees a year
  • Equivalent to driving 5,766 mi less a year
System Size 7kW
Roof Size Min. space required
501 ft²
Electricity Value Annual Production $1,092 a year
Est. Price
$25,900
Savings from a 7kWthis system
  • Est. yearly production 10,728 kWh
  • Est. monthly savings $91
  • Full payback in 24 years
Environmental Impacts
  • Reduces CO2 emissions by 2.72 tons a year
  • Equivalent to planting 125 trees a year
  • Equivalent to driving 6,727 mi less a year
System Size 8kW
Roof Size Min. space required
572 ft²
Electricity Value Annual Production $1,248 a year
Est. Price
$29,600
Savings from a 8kWthis system
  • Est. yearly production 12,261 kWh
  • Est. monthly savings $100
  • Full payback in 25 years
Environmental Impacts
  • Reduces CO2 emissions by 2.99 tons a year
  • Equivalent to planting 137 trees a year
  • Equivalent to driving 7,393 mi less a year

Idaho solar incentives, tax credit, and rebates

Idaho has 7 rebates and tax credits that you may be eligable for. Visit the official links for more details to see if you apply.

Solar incentives in ID

Questar Gas - Residential Energy Efficiency Rebate Programs

Value:Up to $50

Residential Questar Gas customers may be entitled to financial incentives for energy-efficient equipment or upgrades through the ThermWise program. Eligible projects will vary from time to time. Currently, HVAC and water heating/boiler systems, windows, insulation/weatherization, smart thermostats, and certain kitchen or laundry appliances may earn a rebate. To qualify, the equipment should conform to Questar's own standards and be installed by a participating program contractor. Additional information is available on the ThermSafe website.

Questar Gas - Home Builder Rebate Program

Value:Up to $50

Homebuilders in the Questar Gas service area are incentivized to follow energy-efficient building standards through the ThermSafe program. Rebates are offered for whole-house construction and specific parts and equipment. For the latter option, eligible projects will vary from time to time. Additional information and application forms are available from the ThermSafe website.

Questar Gas - Commercial Energy Efficiency Rebate Program

Value:Up to $75

Commercial Questar Gas customers may be entitled to financial incentives for energy-efficient equipment or building upgrades through the ThermWise program. Eligible projects will vary from time to time. Currently, HVAC and water heating systems, insulation/weatherization, and kitchen or laundry appliances may earn a rebate. The standard rebate amount is $1/saved therm for the first year, with a hard maximum of up to half of project costs. To apply, a business should submit a proposal with quantified details of expected gas usage reduction. Only projects approved with the proposal are eligible for incentives. Additional information is available from the ThermSafe website.

Idaho Power - Net Metering

Value:Varies

Idaho Power (IDP) is one of three Idaho utilities that may sign independent net metering contracts with renewable energy customers. Eligible generation technologies for net metering include solar, wind, biomass, fuel cell, and hydroelectric. At the beginning of the contract period, IDP will install or activate a bidirectional meter tracking net excess generation (NEG) sent back to the grid. Customers will receive monthly bill credits for NEG at a fixed rate. Should generation exceed consumption for a certain billing cycle, credits roll forward through the end of the year, at which point IDP will mail the customer a check for the outstanding amount. Certain capacity ceilings apply. Additional information is available through the IDP website.

Avista Utilities - Net Metering

Value:Varies

Avista Power is one of three Idaho utilities that may sign independent net metering contracts with renewable energy customers. Eligible generation technologies for net metering include solar, wind, biomass, fuel cell, and hydroelectric. At the beginning of the contract period, Avista will install or activate a bidirectional meter tracking net excess generation (NEG) sent back to the grid. Customers will receive monthly bill credits for NEG at a fixed rate. Should generation exceed consumption for a certain billing cycle, credits roll forward through the end of the year, at which point Avista will mail the customer a check for the outstanding amount. Certain capacity ceilings apply. Additional information is available through the Avista website.

Low-Interest Energy Loan Programs

Value:Varies

Residents and businesses in Idaho may be eligible for special financing on energy efficiency improvements through the State Energy Loan Program (SELP). Projects that qualify for loans include lighting, windows, insulation/weatherization, HVAC, certain large appliances, and new renewable energy systems (solar PV, small turbines, etc.) SELP applicants are subject to standard credit checks and must provide property or equipment collateral to secure the loan. Once approved, interest rates remain at 4% for a maximum 5-year payment term. A $100 (residential) or $250 (commercial) administrative fee must be paid between project approval and the credit check. Additional information is available from the Idaho Office of Energy Resources website.

Rocky Mountain Power - Net Metering

Value:Varies

Rocky Mountain Power is one of three Idaho utilities that may sign independent net metering contracts with renewable energy customers. Eligible generation technologies for net metering include solar, wind, biomass, fuel cell, and hydroelectric. At the beginning of the contract period, RMP will install or activate a bidirectional meter tracking net excess generation (NEG) sent back to the grid. Customers will receive monthly bill credits for NEG at a fixed rate. Should generation exceed consumption for a certain billing cycle, credits roll forward through the end of the year, at which point RMP will mail the customer a check for the outstanding amount. Certain capacity ceilings apply. Additional information is available through the RMP website.

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Frequently Asked Questions

  • As a general rule, unless there are local limitations, the main limitations to the amount of solar panels you can put on your roof are the available space on your roof, your electricity usage, your providers net metering rules, and the limitations of your house hold electrical system.
  • Based on our research the average price per installed watt is $3.7 in Idaho. This means for a 10kW system you can expect to pay $37,000 though pricing can vary significantly between installers based on the projects requirements.
  • Based on a Zillow research study from 2019, home with solar panels sell for roughly 4.1% more.
  • To generate the most power, solar panels in the United States should face true south as this generally results in the solar panels receiving the most light each day throughout the course of the year. That said, given that energy prices are often variable throughout the day, your installer may recommend you rotate your panels slightly so that the panels will receive more light at the end of the day when energy prices can be more expensive. That said, for most consumers the positioning of solar panels is highly dependent on your home's roof.
  • Based on our continuously updated database of solar installers, we have found 23 verified solar install companies in Idaho

Solar installers in Idaho (23)

Freedom Forever

Temecula, CA(800) 685-1850

Services

  • Installation of solar arrays.
  • Installation of batteries for energy storage.
  • Expertise in consulting on advantageous financing for solar.

Douglass Colony Group

Commerce City, CO(877) 288-0650

Services

  • Installation of solar arrays.
  • Reparation of solar arrays.
  • Expertise in consulting on advantageous financing for solar.

Powur PBC

Del Mar, CA(866) 467-6987

Services

  • Installation of solar arrays.
  • Installation of batteries for energy storage.

RISE Power

Richardson, TX(855) 747-3769

Services

  • Installation of solar arrays.
  • Reparation of solar arrays.
  • Installation of batteries for energy storage.
  • Monitoring of independent energy generation.
  • Solar systems for selling electricity back to the grid.
  • Consulting on all things solar related.

Northwest Renewables

Spokane, WA(509) 443-4526

Services

  • Installation of solar arrays.
  • Installation of batteries for energy storage.
  • Expertise in consulting on advantageous financing for solar.

Hunt Electric

Salt Lake City, UT(801) 975-8844

Services

  • Installation of solar arrays.
  • Installation of batteries for energy storage.
  • Solar systems for selling electricity back to the grid.

Creative Energies

Salt Lake City, UT(801) 487-6489

Services

  • Installation of solar arrays.
  • Installation of batteries for energy storage.
  • Expertise in consulting on advantageous financing for solar.

SunPower Corporation

San Jose, CA(800) 786-7693

Services

  • Installation of solar arrays.
  • Reparation of solar arrays.
  • Installation of batteries for energy storage.
  • Monitoring of independent energy generation.
  • Solar systems for selling electricity back to the grid.
  • Expertise in consulting on advantageous financing for solar.
  • Consulting on all things solar related.

Great Solar Works!

Hailey, ID(208) 721-7003

Services

  • Installation of solar arrays.
  • Reparation of solar arrays.
  • Installation of batteries for energy storage.
  • Solar systems for selling electricity back to the grid.

Fluent Solar

Lindon, UT(866) 736-1253

Services

  • Installation of solar arrays.
  • Expertise in consulting on advantageous financing for solar.
  • Consulting on all things solar related.

Knight Electric

Ogden, UT(801) 782-8219

Services

  • Installation of solar arrays.
  • Reparation of solar arrays.
  • Installation of batteries for energy storage.

Entegrity

Little Rock, AR(800) 700-1414

Services

  • Installation of solar arrays.
  • Expertise in consulting on advantageous financing for solar.

Altenergy

Charlottesville, VA(434) 293-3763

Services

  • Installation of solar arrays.
  • Expertise in consulting on advantageous financing for solar.
  • Consulting on all things solar related.

Infinity Energy

Rocklin, CA(888) 244-2513

Services

  • Installation of solar arrays.
  • Installation of batteries for energy storage.
  • Expertise in consulting on advantageous financing for solar.

Empire Solar Group

Salt Lake City, UT(800) 467-4562

Services

  • Installation of solar arrays.
  • Installation of batteries for energy storage.
  • Solar systems for selling electricity back to the grid.
Last Reviewed By: Nick Reese
Published: 2022-07-05