Is Solar Worth It in Idaho in 2026?
Complete analysis of solar costs, incentives, net metering, and payback for Idaho homeowners — without the federal ITC.
Cost Per Watt
$2.90
installed
Electricity Rate
$0.180
per kWh
Payback (No ITC)
14 yr
current reality
Payback (With 30% ITC)
9.8 yr
hypothetical
25-Year ROI
79%
return on investment
Incentive Breakdown — Idaho
Available incentives for a typical 7kW residential solar system in Idaho
Federal ITC (25D)
ExpiredThe federal solar Investment Tax Credit expired on January 1, 2026. No federal credit available for new installations.
State Tax Credit
NoneIdaho does not offer a state tax credit for solar installations.
SREC Market
Not AvailableIdaho does not have a traditional SREC market.
Property Tax Exemption
No statewide property tax exemption for solar
Sales Tax Exemption
No statewide sales tax exemption for solar
Key Incentives: No major state-level incentives currently available.
Solar Math — With vs Without Federal ITC
Cost breakdown for a typical 7kW residential system in Idaho
2026 Reality (No Federal ITC)
- System Size
- 7 kW
- Cost per Watt
- $2.90/W
- Gross Cost
- $20,300
- Federal ITC
- $0
- Net Cost
- $20,300
- Annual Savings
- $1,452/yr
- Payback Period
- 14 years
Hypothetical (With 30% ITC)
- System Size
- 7 kW
- Cost per Watt
- $2.90/W
- Gross Cost
- $20,300
- Federal ITC (30%)
- -$6,090
- Net Cost
- $14,210
- Annual Savings
- $1,452/yr
- Payback Period
- 9.8 years
Impact: Without the federal ITC, Idaho homeowners face a 4.2-year longer payback period — paying $6,090 more out of pocket.
Net Metering Policy — Idaho
How Idaho compensates your excess solar production
Full retail rate net metering — you earn the same rate you pay for electricity. Best case for solar savings.
Idaho mandates net metering at full retail rate under PUC rules.
Cost Per Watt Benchmark — Idaho
Idaho Average
$2.90/W
National Average
$3.05/W
Typical 7kW System
$20,300
Idaho's average installed cost is below the national average of $3.05/W
Breakeven Timeline
Without the federal ITC, a typical 7kW system in Idaho breaks even in 14.0 years. With the former 30% ITC, payback would drop to 9.8 years.
Without Federal ITC
14
years to break even
With Former 30% ITC
9.8
years to break even
Production Details
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