Is Solar Worth It in Montana in 2026?
Complete analysis of solar costs, incentives, net metering, and payback for Montana homeowners — without the federal ITC.
Cost Per Watt
$2.78
installed
Electricity Rate
$0.147
per kWh
Payback (No ITC)
15.5 yr
current reality
Payback (With 30% ITC)
10.8 yr
hypothetical
25-Year ROI
62%
return on investment
Incentive Breakdown — Montana
Available incentives for a typical 8kW residential solar system in Montana
Federal ITC (25D)
ExpiredThe federal solar Investment Tax Credit expired on January 1, 2026. No federal credit available for new installations.
State Tax Credit
NoneMontana's renewable energy tax credit expired in 2021.
SREC Market
Not AvailableMontana 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 8kW residential system in Montana
2026 Reality (No Federal ITC)
- System Size
- 8 kW
- Cost per Watt
- $2.78/W
- Gross Cost
- $22,240
- Federal ITC
- $0
- Net Cost
- $22,240
- Annual Savings
- $1,437/yr
- Payback Period
- 15.5 years
Hypothetical (With 30% ITC)
- System Size
- 8 kW
- Cost per Watt
- $2.78/W
- Gross Cost
- $22,240
- Federal ITC (30%)
- -$6,672
- Net Cost
- $15,568
- Annual Savings
- $1,437/yr
- Payback Period
- 10.8 years
Impact: Without the federal ITC, Montana homeowners face a 4.7-year longer payback period — paying $6,672 more out of pocket.
Net Metering Policy — Montana
How Montana compensates your excess solar production
Full retail rate net metering — you earn the same rate you pay for electricity. Best case for solar savings.
Montana mandates net metering at full retail rate for systems up to 50 kW under PSC rules.
Cost Per Watt Benchmark — Montana
Montana Average
$2.78/W
National Average
$2.70/W
Typical 8kW System
$22,240
Montana's average installed cost is above the national average of $2.70/W
Breakeven Timeline
Without the federal ITC, a typical 8kW system in Montana breaks even in 15.5 years. With the former 30% ITC, payback would drop to 10.8 years.
Without Federal ITC
15.5
years to break even
With Former 30% ITC
10.8
years to break even
Production Details
What Solar Critics Say (And Why Context Matters)
Honest counterarguments to common anti-solar claims — with Montana-specific context. Tap each claim to expand.
1"The solar tax credit is dead, so the math doesn't work anymore."
There's truth here — the 30% residential ITC (25D) stepped down and expired for new installations. But the headline misses two things:
- §48E manufacturing credit (qualified pipeline only). The §48E advanced energy manufacturing credit had a construction-start deadline of July 4, 2026 that has now passed. It is a manufacturer-facing credit, not a consumer credit — homeowners cannot claim it directly. Installers with safe-harbored pipeline projects may pass through lower panel/inverter pricing, but any specific dollar passthrough depends on the installer and is not guaranteed.
- Lease/PPA passthrough can still deliver credit value to homeowners as reduced monthly payments or upfront savings on qualified pipeline projects — you don't need to wait for tax season.
Cash buyers in Montana still benefit from state and local incentives where available. The math changes — it doesn't break.
2"Solar takes 14+ years to pay back — that's not worth it."
14 years is a national average that hides enormous regional variation and ignores the time value of money. Payback depends far more on your local electricity rate and incentives than on any national number.
In Montana: the current payback is 15.5 years without the federal credit (and would have been 10.8 years with the former 30% ITC). For context, fast-payback states like Texas run ~8 years and slower states like New York ~12 years.
The real question is whether your payback — at 0.147/kWh and 3.9 peak sun hours — beats leaving that money in another investment.
3"Solar doesn't add home value — buyers see it as a liability."
Berkeley Lab (LBNL) research consistently shows a solar premium of about 4.1% home value increase — but with an important ownership caveat:
- Owned systems add value (the ~4.1% premium).
- Leased/PPA systems may be neutral or slightly negative — the buyer must assume the contract.
- Newer systems (under 10 years old) appraise higher than systems near end of warranty.
The fix is simple: disclose ownership type and transfer any lease/PPA cleanly at sale. An owned, well-documented system is an asset, not a liability.
4"What about roof replacement? Solar makes it a nightmare."
This is a legitimate concern — and the right move is to plan for it rather than ignore it. Most composition shingle roofs last 15–18 years after panels go on.
- Before installing: if your roof is over ~10 years old, replace it first. Roof work bundled with the install used to qualify for the 30% federal ITC under Section 25D, but that residential credit expired December 31, 2025 — a 2026 owned-residential system receives $0 federal credit. See current ITC status.
- Removing & reinstalling panels for a reroof typically runs $1,500–$3,000.
- Budget for it: set aside ~$2,000 at year 15 so you're not surprised.
A reputable installer will assess roof condition in their quote — ask explicitly, and fold a reroof into the project if the roof is aging.
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