Maxeon Solar Technologies has set an effective date of June 1, 2024 for its UPP Limited Warranty for PV Modules (DC), a document covering utility-scale and power plant installations1. The warranty appears on the company's warranty page alongside its separate residential module warranty, which carries a different effective date of May 1, 20261.
The UPP document lists two module generations with different terms. Performance 6 modules are listed as 12/30 years and Performance 7 modules as 15/30 years1. The residential Maxeon warranty is listed separately as 40/40 years, with Performance 25 modules at 25/25 years1. The two documents are distinct: the UPP terms apply to utility-scale and power plant use, not to the residential modules most UK households hold.
| Document | Module generation | Terms | Effective date |
|---|---|---|---|
| UPP Limited Warranty for PV Modules (DC) | Performance 6 | 12/30 years | June 1, 2024 |
| UPP Limited Warranty for PV Modules (DC) | Performance 7 | 15/30 years | June 1, 2024 |
| Maxeon Limited Warranty for PV Modules (DC) | Maxeon | 40/40 years | May 1, 2026 |
| Maxeon Limited Warranty for PV Modules (DC) | Performance 25 | 25/25 years | May 1, 2026 |
On claims, Maxeon directs system owners to their installer rather than to the company directly.
"If you are a Maxeon system owner, please contact your solar installer to conduct a site visit and submit a claim."
The same page states that Maxeon Partners submit claims through a separate 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 provides limited warranty coverage only for legacy SunPower panels installed before August 5, 2024 and self-registered with Maxeon before December 31, 20241. No further detail on the scope of that coverage, or on panels falling outside those dates, is given on the page.
Why it matters for households
The June 1, 2024 date applies to a utility-scale warranty, so it does not change the terms on a domestic rooftop array. Its relevance to households is indirect: it shows how a manufacturer separates commercial-scale cover from residential cover, and how differently the two are written. A household reading a warranty document needs to check which document its modules fall under, because the terms above range from 12/30 years to 40/40 years depending on the generation named.
The SunPower statements matter more directly to UK owners of legacy panels. The page sets two conditions for Maxeon cover, an installation date before August 5, 2024 and self-registration with Maxeon before December 31, 2024, and both are now in the past1. For a household whose panels fall outside those conditions, the page does not say what cover remains. The route to a claim for a Maxeon system owner runs through the installer, not the manufacturer, which means the installer's continued existence is part of the practical picture. More on how solar panel warranties and degradation work in practice, and on manufacturer warranties generally, is set out in the guides.
What happens next
The residential Maxeon warranty carries an effective date of May 1, 2026, which has not yet arrived1. No further dates are given for the UPP document beyond its June 1, 2024 effective date.