Maxeon Solar Technologies has published a revised Maxeon Limited Warranty for PV Modules (DC) carrying an effective date of May 1, 2026, listed as revision G on the company's warranty page1. The document sits alongside a separate utility-scale warranty that keeps an earlier effective date of June 1, 20241.
The revised document is described on the page as offering 40/40 years for Maxeon and 25/25 years for performance1. The utility-scale, power plant warranty is listed with Performance 6 at 12/30 years and Performance 7 at 15/30 years, effective June 1, 20241. The page does not set out the full terms of either document, and the differences between the previous revision and revision G have not been reported.
"Maxeon: 40/40 Years
Claims handling is routed through installers rather than direct to the manufacturer for system owners. The page states that a Maxeon system owner should contact their solar installer to conduct a site visit and submit a claim, while Maxeon Partners use a separate claim form1.
The page also addresses owners of legacy SunPower equipment. It states that SunPower Corporation was the warranty holder for systems and panels it sold, and that SunPower Corporation declared bankruptcy in 20241. Maxeon states it only provides limited warranty coverage for legacy SunPower panels installed before August 5, 2024, and self-registered with Maxeon prior to December 31, 20241.
| Warranty document | Cover stated | Effective date |
|---|---|---|
| Maxeon Limited Warranty for PV Modules (DC) | Maxeon 40/40 years; performance 25/25 years | May 1, 2026 |
| UPP Limited Warranty for PV Modules (DC) | Performance 6: 12/30 years; Performance 7: 15/30 years | June 1, 2024 |
Why it matters for households
A module warranty is one of the few long-dated promises attached to a home solar array, and it is the document a household relies on if output falls faster than expected or a panel fails. The terms published here set out how long cover runs and from what date, which determines whether a given installation falls under the current revision or an earlier one. For owners of legacy SunPower panels, the position is narrower than for Maxeon-branded equipment: cover depends on the installation date and on whether the panel was registered with Maxeon by the end of 20241. Households weighing the value of an array over its working life, or buying a property with panels already fitted, have reason to check which document applies. The practical route to a claim runs through the installer, not the manufacturer, so the continued existence and responsiveness of that installer forms part of the cover in practice1. Background on how panel warranties and degradation are structured is set out in the site's guide to solar panel warranties, degradation and lifespan, and the SunPower and Maxeon page covers ranges, specifications and warranty terms for both brands.
What happens next
The May 1, 2026 effective date is the only dated step given. No further changes, transitional arrangements or claim deadlines beyond the December 31, 2024 registration cut-off for legacy SunPower panels have been reported1.