Solar panels in Alabama

Q: Is solar worth it in Alabama?

At 15.5 cents per kWh and 1,524 usable sun hours, a typical system pays back in about 10 years.

Q: How much do solar panels cost in Alabama?

A 8.4 kW system costs about $23,940 before incentives.

Roofs across Alabama get about 1,524 hours of usable sunlight a year, and electricity costs 15.5¢/kWh. That combination puts a typical system's payback at 10 years. Here's the detail, from real rooftop data across 3 Alabama cities.

1,524Sun hours / yr

15.5¢Per kWh

21Panels typical

10 yrPayback

Alabama is a middling solar market. A 10-year payback still beats leaving the money in a savings account over 25 years, but it is not the slam dunk the ads suggest.

Check your own roof in Alabama → These are regional figures; your roof's size, pitch and shading move them a lot.

How Alabama compares

Alabama gets more sunlight than 53% of the cities we measure, and its electricity costs more than 62% of states and provinces. Both matter, but not equally: the electricity rate usually matters more, because solar saves money by replacing power you would otherwise buy. A sunny state with cheap power often pays back slower than a cloudy state with expensive power. Why that happens →

Solar by city in Alabama

City	Sun hrs/yr	Panels	Net cost	Payback
Mobile	1,613	20	$15,960	9.5 yrs
Birmingham	1,524	21	$16,758	10 yrs
Huntsville	1,517	21	$16,758	10 yrs

What a system costs in Alabama

System	Size	kWh/yr	Net cost	Saves/yr	Payback
8 panels	3.2 kW	4,145	$6,384	$643	9.9 yrs
12 panels	4.8 kW	6,218	$9,576	$964	9.9 yrs
16 panels	6.4 kW	8,291	$12,768	$1,285	9.9 yrs
20 panels	8 kW	10,363	$15,960	$1,606	9.9 yrs
26 panels	10.4 kW	13,472	$20,748	$1,778	11.7 yrs

Payback stops improving as systems grow, then gets worse. You can only save on electricity you were going to buy, so once a system covers your usage the extra panels mostly export at a lower rate.

Alabama solar incentives

Every US household can claim the 30% federal residential clean energy credit, which is what the "after credit" figures above assume. On a $23,940 system that is $7,182 back. How the credit works →

State, utility and municipal incentives stack on top and change often — Alabama may offer rebates, property or sales tax exemptions, or performance payments. We deliberately don't list specific state programmes here because they change several times a year and stale numbers are worse than none. The DSIRE database is the standard reference and is kept current.

Net metering is the one to actually check. It decides what your utility pays for exported power, and it affects your return far more than most rebates. Rules vary by utility, not just by state, and have been getting less generous. Ask any installer exactly which net metering tariff you would be on.

Alabama solar questions

Is solar worth it in Alabama?

At 15.5¢/kWh and 1,524 usable sun hours, a typical system pays back in about 10 years and returns roughly $25,171 over 25 years. That is a solid return.

How many solar panels do I need in Alabama?

About 21 panels for a home using 10,800 kWh a year. Each 400W panel produces roughly 518 kWh annually at Alabama sunlight levels.

How much do solar panels cost in Alabama?

A 8.4 kW system runs about $23,940 before incentives and $16,758 after the 30% federal credit. Quotes vary widely by installer and roof complexity — get three.

Worth reading before you buy

What your utility pays for exportsChanges payback more than any equipment choice 12 questions to ask before signingIdentical systems vary 30–40% in price How long do panels last?Guide How long until it pays for itself?Guide

Regional estimates generated 2026-08-22 from Google Solar API rooftop samples across 3 Alabama cities, and average Alabama electricity rates. Not a quote and not financial or tax advice.