Alabama’s solar power laws are among the most restrictive in the country for homeowners: the state has no renewable energy mandate, no net metering law, no state tax credit for solar, and Alabama Power imposes a monthly capacity charge on customers with panels along with buyback rates well below retail. The federal residential solar tax credit that once softened those costs is no longer available for systems installed after December 31, 2025.
No Net Metering, and What Alabama Power Pays Instead
Alabama has no statewide net metering policy.1DSIRE. Alabama Renewable Energy and Energy Efficiency In states that require net metering, excess generation is credited near the retail electricity rate. Alabama Power instead pays its avoided cost, which is closer to what the utility would have spent generating that power itself.
Under Alabama Power’s Rate PAE (Purchase of Alternate Energy) for systems under 100 kW, the buyback rate varies by season and time of day. Summer weekday peak hours pay roughly 4.7 to 4.9 cents per kilowatt-hour. Off-peak and shoulder months drop to about 3 to 3.6 cents.2Alabama Power. Rate PAE Purchase of Alternative Energy Systems of 100 kW or larger fall under a separate rate called CPE (Contract for Purchased Energy).3Alabama Power. Solar Energy
Alabama’s average residential electricity rate is roughly 16 cents per kilowatt-hour. Every kilowatt-hour you consume directly from your panels saves you about 16 cents; every kilowatt-hour you export earns you 3 to 5 cents. That gap is why system sizing in Alabama typically aims to match daytime household use rather than to overproduce.
The Monthly Capacity Reservation Charge
Alabama Power adds a monthly capacity reservation charge of $5.41 per kilowatt of installed solar capacity to every interconnected customer’s bill.4Alabama Power. Rate Rider RGB Supplementary, Back-Up, or Maintenance Power For a 5 kW residential system, that is $27.05 per month, or roughly $325 per year, regardless of how much backup power you draw. The Public Service Commission approved the current rate in 2020, up from the previous $5.00 per kilowatt.
Alabama Power characterizes the fee as compensation for grid infrastructure that solar customers still rely on when their panels aren’t producing. Clean energy advocates have called it one of the highest standby charges imposed by any regulated utility in the country and said it roughly doubles the payback period on a typical home system. The charge is based on your system’s nameplate capacity, not your actual grid usage. Legal challenges at the PSC have not overturned it.
Interconnection and Insurance
Connecting a solar system to Alabama Power requires compliance with the utility’s interconnection process and its Rate Rider RGB, which governs supplementary, backup, and maintenance power for all customers with on-site generation.4Alabama Power. Rate Rider RGB Supplementary, Back-Up, or Maintenance Power You submit an interconnection application with your system specifications, and the utility may require engineering review for larger or more complex installations. An external disconnect switch accessible to utility workers is standard.
The Alabama Department of Insurance advises solar customers to verify local insurance requirements before interconnecting. Many jurisdictions either require or strongly encourage additional liability coverage while an energy sales arrangement is in force. Your homeowner’s policy may need an endorsement to cover the solar equipment and any liability associated with feeding power back to the grid. Talk with your municipality and your insurer before signing an interconnection agreement.
If You’re in TVA Territory, Different Rules Apply
A significant portion of northern Alabama is served not by Alabama Power but by local electric cooperatives and municipal utilities that distribute power purchased from the Tennessee Valley Authority. In TVA territory, everything above about Alabama Power’s rates, charges, and interconnection process does not apply. TVA offers a Dispersed Power Production program that lets residential and commercial customers sell excess generation back, with terms and compensation set by the local distributor. Check your electric bill for the utility name before researching solar options, because the paperwork and economics differ substantially.
Local Permits
Alabama has no single statewide permitting process for solar installations. The state has adopted the 2021 International Building Code, with portions of the 2024 edition incorporated as of March 2025, and residential building code authority was transferred to the Alabama Home Builders Licensure Board in late 2024. Permit requirements, fees, and timelines are set by your local city or county.
Birmingham requires building permits for solar installations to verify structural and safety compliance. Huntsville and other jurisdictions require separate electrical permits in addition to building permits.5City of Huntsville. Building License and Permits Applications typically involve system design plans, roof load calculations, and compliance with the National Electrical Code. Some counties impose setback or height restrictions on ground-mounted arrays.
Permit fees for residential rooftop solar generally range from a few hundred dollars up to around $500 or $600, depending on jurisdiction and system size. Skipping required permits can result in fines, forced removal, or problems when you sell your home. Most installers handle permitting, but confirm that in the contract and verify that all inspections are completed before your system is energized.
HOAs Can Block or Restrict Solar
Alabama has no solar access law. More than 30 states protect a homeowner’s right to install solar even when an HOA objects. Alabama isn’t one of them. An HOA in Alabama can restrict, regulate, or prohibit rooftop solar through its covenants, conditions, and restrictions or through an architectural review process.
HOAs that permit solar often impose conditions that reduce system performance: rear-facing roof slopes only, panel count limits, or a requirement that panels sit flush with the roofline. Those constraints can cut production by 20 percent or more. If you live in an HOA community, review your governing documents before paying for a solar proposal, and get architectural approval in writing before signing an installation contract. You will have no legal recourse under Alabama law if the board later changes course.
Taxes and Credits
Federal Residential Credit
The federal Residential Clean Energy Credit under Section 25D, which provided a 30 percent tax credit on solar installation costs, is not available for systems installed after December 31, 2025.6Internal Revenue Service. Residential Clean Energy Credit The IRS has stated that paying for a system before that date is not enough; installation had to be completed by December 31, 2025.7Internal Revenue Service. FAQs for Modification of Sections 25C, 25D, 25E, 30C, 30D, 45L, 45W, and 179D Under Public Law 119-21 Businesses may still qualify for a federal clean electricity investment credit under Section 48E, but that provision does not apply to residential homeowners.
Property Tax
Alabama has a local-option property tax abatement for qualifying renewable energy facilities, which can exempt the noneducational portion of property tax on the added value of solar equipment.8DSIRE. Local Option – Property Tax Exemption for Renewable Energy Facilities The abatement requires action by your local government and is not automatic. Where it hasn’t been adopted, solar panels can raise your property’s assessed value and tax bill. Check with your county tax assessor’s office before assuming any property tax relief.
Sales Tax
Alabama imposes its standard 4 percent state sales tax on solar equipment, with no renewable energy exemption.9Alabama Department of Revenue. State Sales and Use Tax Rates Local sales taxes stack on top of the state rate and can push the combined rate to 10 percent or more in some areas. On a $15,000 system, that alone can amount to $1,500. Many states exempt solar equipment from sales tax. Alabama does not.
State Credit
Alabama offers no state income tax credit for residential solar installations. Combined with the expired federal credit and the ongoing capacity reservation charge, that leaves self-consumption, sizing a system to cover most of your daytime usage rather than exporting to the grid, as the strongest remaining financial rationale for going solar in the state.