Solar panels in Alabama: cost, payback and the rules that matter
Alabama homes pay 16.5¢ per kWh for electricity, the 23rd highest of 51, up 3.6% in a year. A typical home needs 24 panels. With no federal tax credit they pay for themselves in about 13.1 yrs.
Four facts that decide solar in Alabama
1. The sun. One kilowatt of panels makes about 1,372 kWh a year in the median Alabama city, from 1,356 in Huntsville to 1,483 in Mobile.
2. The price of electricity. Every kWh your panels make is worth what you would otherwise pay: 16.5¢ in Alabama today.
3. What your utility pays for exports. Most Alabama utilities still credit exported solar close to the retail rate, but rules differ by utility and change often.
4. Incentives. The 30% federal Residential Clean Energy Credit (IRC §25D) ended for systems whose installation is completed after December 31, 2025 (One Big Beautiful Bill Act, P.L. We don't know of a statewide income-tax credit for home solar in Alabama.
Alabama's homes
1,997,247 households; 70.2% own their home. 1,216,067 owner-occupied single-family houses: the main market for rooftop solar. The median home was built in 1986; 67.4% heat with electricity.
ACS 2020–2024 5-year estimates, U.S. Census Bureau.
Plan a specific Alabama home
Solar in every Alabama city with 50,000+ people
| City | Sun hrs/day | kWh per kW | Best tilt | Typical kW | Payback (NM) | Payback (NB) | Solar ¢/kWh |
|---|---|---|---|---|---|---|---|
| Huntsville | 4.9 | 1,356 | 32° | 10.5 | 13.2 yrs | 21.7 yrs | 11.4 |
| Mobile | 5.3 | 1,483 | 29° | 9.7 | 12.1 yrs | 20.0 yrs | 10.4 |
| Birmingham | 5.0 | 1,365 | 31° | 10.5 | 13.1 yrs | 21.6 yrs | 11.3 |
| Montgomery | 5.1 | 1,393 | 31° | 10.1 | 12.8 yrs | 21.0 yrs | 11.1 |
| Tuscaloosa | 5.1 | 1,372 | 31° | 10.1 | 13.0 yrs | 21.2 yrs | 11.3 |
| Hoover | 5.0 | 1,368 | 31° | 10.1 | 13.1 yrs | 21.2 yrs | 11.3 |
| Auburn | 5.1 | 1,388 | 31° | 10.1 | 12.9 yrs | 21.1 yrs | 11.1 |
| Dothan | 5.3 | 1,455 | 30° | 9.7 | 12.3 yrs | 20.2 yrs | 10.6 |
| Madison | 4.9 | 1,356 | 32° | 10.5 | 13.2 yrs | 21.7 yrs | 11.4 |
| Decatur | 5.0 | 1,357 | 32° | 10.5 | 13.2 yrs | 21.7 yrs | 11.4 |
NM = exports credited at retail (net metering); NB = exports at ~30% of retail (net billing). Systems sized to the Alabama average home. $3.00/W, cash, 25 years.
Rule changes that affect Alabama
All changes and deadlines →- Federal: In-service deadline for the lease/PPA solar credit · Tax credits
- Federal: National data: solar prices fell to a median $3.60 per watt · Prices
- Federal: Construction-start deadline passed for the lease/PPA credit · Tax credits
- Federal: The 30% homeowner solar tax credit is gone · Tax credits
Questions about solar in Alabama
How much do solar panels cost in Alabama?
A 10.1 kW system, the size the average Alabama home needs, costs about $25,250 to $37,875 before incentives in 2026.
Is solar worth it in Alabama?
In the median Alabama city, solar pays for itself in about 13.1 yrs if exported power earns the retail rate, or 21.2 yrs if it earns about 30% of retail. Most utilities here still offer some form of net metering; check yours.
Is there a solar tax credit in Alabama?
We know of no statewide income-tax credit for home solar in Alabama; utilities and cities sometimes offer rebates. The 30% federal credit ended for homeowner systems installed after December 31, 2025.
How many solar panels does a Alabama home need?
About 24 panels of 420 watts for the state-average 1,143 kWh a month. Sunnier cities need fewer: Mobile gets 1,483 kWh per kW a year, Huntsville 1,356.