SOLAR EXIT GUIDE
Traditional lemon laws don't cover solar panels — but that doesn't mean you're without recourse. Here's what consumer protection laws actually apply to defective solar equipment and how to use them.
Get a Free Contract Review →Published April 13, 2026 · Not legal advice · Our methodology
Homeowners dealing with underperforming or defective solar panels often search for "solar panel lemon law" — hoping for a straightforward legal remedy. Unfortunately, traditional lemon laws are designed for motor vehicles and generally don't apply to solar energy systems. So do lemon laws apply to solar panels? Not directly — but based on our research, there are several other legal protections that may provide similar or even stronger remedies for homeowners with defective solar equipment. This guide explains what protections actually exist and how to use them.
In This Guide
Lemon laws exist in all 50 states, but they were specifically enacted to protect consumers who purchase defective motor vehicles. The typical lemon law requires a manufacturer to replace a vehicle or refund the purchase price if the vehicle has a substantial defect that cannot be repaired after a reasonable number of attempts.
Solar panels don't qualify under these statutes for several reasons:
However, the fact that lemon laws don't apply doesn't mean you're without legal recourse. Several other laws provide meaningful protections for consumers dealing with defective solar products.
The Uniform Commercial Code (UCC), adopted in some form by all 50 states, provides one of the most important protections for consumers of defective solar products. Under UCC Article 2, goods sold to consumers come with an implied warranty of merchantability — a guarantee that the product is fit for its ordinary purpose.
For solar panels to be "merchantable," they must meet certain standards. If your panels don't, you may have grounds for a warranty dispute. Specifically, they must:
If your solar panels consistently fail to meet these standards — producing significantly less energy than their rated output, developing hot spots or delamination, or failing prematurely — the implied warranty of merchantability may have been breached.
Important caveat: The implied warranty of merchantability applies most clearly to purchases of goods. If you have a solar lease or PPA, you may not technically be "purchasing" the panels, which could complicate a UCC claim. However, some courts have applied implied warranty protections to lease transactions as well. A qualified attorney can evaluate how this applies to your specific arrangement.
Under the UCC, sellers can disclaim implied warranties — but they must do so conspicuously and using specific language (typically the word "merchantability" must appear). Many solar contracts attempt to disclaim implied warranties in fine print. However, under the Magnuson-Moss Warranty Act, companies that offer written warranties generally cannot disclaim implied warranties.
The federal Magnuson-Moss Warranty Act (15 U.S.C. §§ 2301-2312) is a powerful consumer protection law that applies to most solar panel warranties. The FTC enforces this law and provides guidance on warranty rights. Here's why it matters:
Practical significance: Because most solar panel manufacturers and installers offer written warranties (typically 10-25 years for product warranties and 25-30 years for performance warranties), the Magnuson-Moss Act generally applies. This means they cannot disclaim implied warranties, regardless of what their contract says.
Every state has consumer protection statutes — often called "unfair and deceptive trade practices" (UDAP) or "consumer fraud" statutes — that provide defective solar panels consumer protection beyond warranty law. These laws are particularly relevant for solar panel issues because they often:
The strength and specifics of these protections vary significantly by state. Some states, like California, Massachusetts, and Illinois, have particularly strong consumer protection statutes that provide robust remedies for solar panel issues. When multiple homeowners are affected by the same defective product, a class action lawsuit may also be an option.
Understanding the different types of warranties that come with your solar system is essential for pursuing any defect claim:
Covers defects in materials and workmanship. Typically 10-12 years from the manufacturer, though some premium brands offer 25 years. Covers issues like cell cracking, junction box failure, frame defects, and delamination.
Guarantees that panels will produce at least a certain percentage of their rated output over time. Most manufacturers guarantee at least 80-85% output at 25 years, with a linear degradation schedule. If your panels fall below this curve, you may have a warranty claim.
Provided by the installer (not the manufacturer) and covers the quality of the installation work — including roof penetrations, electrical connections, and mounting. Typically 1-10 years, depending on the installer. If roof leaks or electrical issues result from poor installation, this warranty should cover repairs.
Covers the inverter (the device that converts DC power from panels to AC power for your home). String inverters typically have 10-12 year warranties; microinverters often carry 25-year warranties. Inverter failure is one of the most common system issues.
Dealing with defective solar panels? A free contract review can help identify your warranty rights and exit options.
Strong documentation is the foundation of any successful warranty or consumer protection claim. Here's how to build your case:
In severe cases, defective solar panels may justify full contract rescission — meaning the contract is cancelled and you're restored to your pre-contract position. Rescission may be appropriate when:
Rescission typically requires the homeowner to return the product (or allow its removal), and the company must refund payments and potentially cover removal costs and consequential damages. In some cases, a solar panel product liability claim may also be appropriate if the defective panels caused property damage or safety hazards. These are significant legal remedies that generally require attorney involvement to pursue effectively.
Ownership disclosure: TRU Solar Cancellation, which shares common ownership with SolarPanelExit.com, offers a Solar Exit Document Package that may help homeowners document defects and understand their exit options. This is a paid service ($450). See our Ownership Disclosure for full details.
While a comprehensive 50-state survey is beyond the scope of this article, here's an overview of solar panel consumer rights by state and how key states handle defective solar panel protections:
| State | Key Consumer Protection Law | Enhanced Damages? | Attorney Fees? |
|---|---|---|---|
| California | Consumer Legal Remedies Act + Song-Beverly Act | Yes (treble) | Yes |
| Texas | Deceptive Trade Practices Act | Yes (treble) | Yes |
| Florida | Deceptive and Unfair Trade Practices Act | Limited | Yes |
| New York | General Business Law § 349-350 | Yes (treble) | Yes |
| Massachusetts | Chapter 93A | Yes (treble) | Yes |
| Arizona | Consumer Fraud Act | Limited | Yes |
| New Jersey | Consumer Fraud Act | Yes (treble) | Yes |
This table provides a general overview only. The specific application of these laws to solar panel defect cases depends on the facts of each situation. Consult an attorney licensed in your state for specific guidance.
Critical reminder: We do not advise homeowners to stop making payments or breach contractual obligations while pursuing defect claims or warranty disputes. Continue meeting your contractual obligations until you have specific legal guidance. Defaulting on payments can damage your credit and weaken your legal position. Results vary by individual situation.
Traditional lemon laws generally do not apply to solar panels. Lemon laws in most states are specifically designed for motor vehicles and do not cover home improvement products or energy systems. However, homeowners with defective solar panels may have other legal protections, including implied warranties under the Uniform Commercial Code (UCC), the federal Magnuson-Moss Warranty Act, state consumer protection statutes, and contract-specific warranty provisions.
If your solar panels are defective, you have several options: file a warranty claim with the manufacturer or installer, document the defects thoroughly with photos and performance data, file complaints with your state attorney general and the BBB, consult a consumer protection attorney about potential claims under warranty law or consumer protection statutes, and consider whether the defects constitute grounds for contract rescission. The specific remedies available depend on your contract terms, whether you own or lease the system, and your state's laws.
Under the Uniform Commercial Code (UCC), goods sold commercially come with an implied warranty of merchantability. This means the solar panels must be fit for their ordinary purpose — generating electricity from sunlight at a reasonable efficiency level. If panels consistently fail to produce energy as expected for their specifications, this warranty may have been breached. However, lease and PPA arrangements may complicate this analysis since you may not technically be "purchasing" the goods.
To prove solar panels are defective, document everything: monitor and record energy production data over time and compare it to the system's rated output and the company's projections. Get an independent inspection from a certified solar technician who is not affiliated with the installer. Photograph any visible damage like hot spots, discoloration, cracking, or delamination. Keep records of all warranty claims and the company's responses. An independent engineer's report can be particularly valuable evidence.
Potentially, yes. If solar panels are defective and the company fails to repair or replace them within a reasonable time, you may be entitled to contract rescission (a full refund and return of the equipment), replacement with conforming goods, damages for the difference between what was promised and what was delivered, or consequential damages for any additional harm caused. The specific remedy depends on your contract, state law, and the nature and severity of the defects. Find a solar panel lawyer →
Yes, the federal Magnuson-Moss Warranty Act generally applies to solar panel warranties. This law requires that written warranties on consumer products be clearly disclosed and honored. It prohibits warranty disclaimers on products that come with a written warranty, allows consumers to sue for breach of warranty in federal court if the amount exceeds $50,000, and may entitle you to recover attorney fees if you prevail. This can be a powerful tool for homeowners dealing with companies that refuse to honor their solar panel warranties.
Get a free contract review to understand your warranty rights and explore your best options for resolution.
This content is based on independent research and represents our editorial team's opinions. SolarPanelExit.com and TRU Solar Cancellation share common ownership. We may receive compensation when you contact companies through our site. This does not influence our editorial rankings. Results vary by individual situation. This is not legal advice.
Disclaimer: This article is for informational purposes only and is not legal advice. Consumer protection laws vary significantly by state and depend on specific factual circumstances. Results vary by individual situation. We do not advise homeowners to stop making payments or breach contractual obligations. SolarPanelExit.com and TRU Solar Cancellation share common ownership. Consult a qualified attorney for legal advice specific to your situation. See our Ownership Disclosure, Advertiser Disclosure, and Methodology.