SunPower Chapter 11 and the Complete Solaria transition: your warranty explained

The SunPower situation is genuinely confusing — in part because "SunPower" has meant different things at different times. The brand has changed hands, had its panel business spun off, filed Chapter 11, and then had its dealer network acquired by a different company. If you're a SunPower customer trying to understand who actually holds your warranty today, you're not crazy. This guide untangles the corporate map and tells you exactly where to go for claims.

The corporate map: SunPower, Maxeon, and Complete Solaria

Three companies with overlapping brand names is the root of the confusion. Here's how to keep them straight:

• SunPower Corporation: The installation and customer-facing company. Installed residential systems in the U.S., operated the mySunPower app and monitoring. Filed Chapter 11 in August 2024.
• Maxeon Solar Technologies: The panel manufacturer. Spun off from SunPower as an independent company in 2020. Designs and manufactures the Maxeon and Performance-series solar panels sold under both the SunPower and Maxeon brands. Maxeon was not part of SunPower's Chapter 11.
• Complete Solaria: A separate company that acquired substantial assets from SunPower's Chapter 11 estate in late 2024, including the New Homes business, certain dealer-network relationships, customer-service operations, and the "SunPower" brand rights for the installation business.

Practical translation: the panels on your roof are warranted by Maxeon (still operating, still honoring claims). The installer-side obligations live partly with Complete Solaria and partly with the bankruptcy estate, depending on the specific obligation.

2024 timeline: what happened, in order

1. Early 2024: SunPower Corporation announces accounting and financial difficulties, suspends certain installations, lays off employees.
2. Mid-2024: SunPower pauses operation of its leasing business and some dealer programs.
3. August 2024: SunPower Corporation files for Chapter 11 bankruptcy protection.
4. Late 2024: Court-approved sale process results in Complete Solaria acquiring substantial SunPower assets, including the New Homes business and the brand.
5. 2025: Complete Solaria begins operating a successor customer-service function under the SunPower brand. The mySunPower app remains operational with some continuity of service.
6. 2026: Settled steady state — Maxeon handles panel warranties directly, Complete Solaria handles most installer-side inquiries for acquired systems, and certain pre-petition contractual issues are still being worked out through the bankruptcy case.

Who holds what warranty today

SunPower / Maxeon panels: 25-year coverage

SunPower-branded and Maxeon-branded panels carry a 25-year product and performance warranty — one of the strongest in the industry. If you have Maxeon, SunPower X-series, SunPower E-series, or SunPower A-series panels, this warranty is issued by Maxeon directly and is not affected by the SunPower Corporation Chapter 11 case. You file claims at us.maxeon.com/warranty-support.

Maxeon has a well-documented claim process. You'll need: your system's install date, the panel model and serial number(s), photos of the issue (for product defect claims), and production data (for performance claims). Processing time has historically been in the weeks-to-months range.

Inverters: Enphase or SolarEdge regardless of era

SunPower installed a mix of inverter types over the years. Older systems often had SunPower-branded inverters that were actually rebadged from other manufacturers. Newer systems typically use Enphase microinverters (IQ7 or IQ8 series) or SolarEdge string inverters. In all cases, the inverter warranty is with the inverter manufacturer — not SunPower and not Complete Solaria.

Check the label on your inverter (in the garage, utility closet, or mounted outdoors near your main panel) for the actual brand and model. Then go directly to that manufacturer's warranty portal.

SunVault batteries

The SunVault battery was a SunPower-branded energy storage product sold alongside residential solar installations. The 10-year product warranty was issued by SunPower. In the Chapter 11 and subsequent Complete Solaria acquisition, SunVault warranty obligations for active installations have transitioned to the SunPower successor support channel operated by Complete Solaria. If you have an urgent SunVault issue, go through the mySunPower app or the SunPower customer support line and document every step of your claim. If you can't get traction through that channel, consult a local licensed battery installer — note that the SunVault hardware is tightly integrated and third-party service options are more limited than for Tesla Powerwall or Enphase systems.

The mySunPower app: current state

The mySunPower app continues to operate under the successor customer-service structure. Most homeowners report it works roughly as before for monitoring production, viewing consumption (if you have a SunPower-connected meter), and opening service cases. Some features — particularly those tied to the original leasing business and customer-specific reporting — have been affected by the transition.

If you lose access and can't recover it through the app's "forgot password" flow, the path is to contact SunPower successor support and provide proof of system ownership. If you have Enphase microinverters underneath, you can also open an Enphase Enlighten homeowner account in parallel for direct monitoring access that is not dependent on the SunPower app.

How to file a claim today

The right path depends on what's broken:

1. A panel is producing noticeably less than its neighbors, or has visible defects: File directly with Maxeon at us.maxeon.com.
2. An Enphase microinverter has failed (indicated by a dead panel with otherwise healthy neighbors in Enphase Enlighten): File with Enphase directly.
3. A SolarEdge inverter is displaying an error code or has stopped producing: File with SolarEdge directly.
4. Your SunVault battery is alarming, underperforming, or not discharging properly: Start a case through mySunPower / SunPower customer support.
5. You have a roof leak at a solar penetration: This is a workmanship issue. If the system was installed before the Complete Solaria transition, contact SunPower successor support. If they can't service it within a reasonable window, hire a licensed local roofer or solar contractor and keep documentation for any subsequent claim.

Your action plan

1. Confirm your equipment. Check your installer contract and/or the actual labels on your panels (Maxeon or SunPower brand), inverter, and battery.
2. Open accounts with underlying manufacturers. At minimum, create a Maxeon warranty account. If you have Enphase microinverters, set up Enphase Enlighten as a parallel monitoring path.
3. Verify mySunPower access. Log in and confirm you can see your system and production data.
4. Run a production audit. SunPower and Maxeon panels are premium products — they should be producing at or near the top of expected output for your system size. If they're underperforming by more than 10-15%, it's worth a manufacturer claim conversation.
5. For NEM-grandfathered systems considering resale: Understand whether your tariff transfers. If not cleanly, a battery is the most effective resale-protection tool.