"Is SunPower still in business" is one of the most-searched questions in residential solar right now, and most answers online are either out of date or quietly wrong. The confusion is understandable: the brand "came back" in 2025, the stock ticker never disappeared, and the official website still works. But behind that one name sit three legally separate companies and two distinct corporate failures. This guide untangles them — and explains what each one means if you own a system, depend on a warranty, or source SunPower/Maxeon IBC cells for your own builds. For the sourcing side of that question specifically, we keep a separate page on genuine surplus IBC cell stock and how to check a lot before paying.
Three SunPowers, two deaths: clearing up the confusion first
Already running SunPower or Maxeon Gen III hardware? The supply route for this cell generation closed when both companies behind it went through insolvency proceedings — the cells themselves did not stop existing. We hold genuine surplus 125 mm and 166 mm IBC cells from factory inventory, sold under first-sale, so an existing product line does not have to be redesigned around a different cell. Every listing states the bin grade, and an IV or flash test is available on request: 125 mm Gen III cells from stock.
There are three legally distinct entities sharing the "SunPower" name in 2026, and treating them as one company is the single biggest reason people get the answer wrong. Here is how they actually break down:
| Entity | What it is | 2026 status |
|---|---|---|
| SunPower Corporation (the original) | U.S. residential installer & dealer network, founded 1985 | 💀 Filed Chapter 11, August 2024; assets sold off |
| SunPower Inc. (formerly Complete Solaria) | Bought the SunPower brand + Blue Raven + dealer network out of bankruptcy | 🟡 Active, trading as SPWR — but a new legal entity |
| Maxeon Solar Technologies | The cell/panel manufacturer, spun off from SunPower in 2020 (took the IBC cell technology) | 🔴 Financial collapse; shut out of the U.S. market |
The key split happened in 2020, when SunPower separated its manufacturing arm into Maxeon Solar Technologies. After that, "SunPower" was the brand and installer, while Maxeon was the company that physically built the cells and panels. Both halves have now failed — but for completely different reasons, on different timelines. If you are here for the cells rather than the brand drama, our SunPower C60 solar cell buying guide covers what is still obtainable today.
What happened to SunPower the installer (the bankruptcy you read about)
The SunPower Corporation that filed for bankruptcy was the installer and dealer business, not the cell factory. On August 5, 2024, SunPower Corp. filed voluntary petitions for Chapter 11 in the U.S. Bankruptcy Court for the District of Delaware. The same day, it signed an asset-purchase agreement naming Complete Solaria as the "stalking horse" buyer for its Blue Raven Solar business, New Homes division, and non-installing dealer network — for roughly $45 million in cash (Financier Worldwide).
The sale closed at the end of September 2024. Then the brand staged a comeback: in April 2025, Complete Solaria rebranded itself as SunPower and reclaimed the SPWR ticker on Nasdaq, and later formally changed its legal name to SunPower Inc. (PV Tech). This is where most people get tripped up. The company trading as "SunPower" today is a new legal entity — it carries the same name, ticker, and mission, but it did not assume the original corporation's debts or, critically, its old warranty obligations on a like-for-like basis. Same logo, different balance sheet, different owner.
What happened to Maxeon — the company that actually made the cells
Maxeon is the half of the story that matters most if you buy or build with SunPower cells, and its situation is more serious than the installer's bankruptcy. Maxeon took SunPower's interdigitated back-contact (IBC) cell technology when it spun off in 2020 and became the manufacturer behind the brand's famous high-efficiency cells. By late 2025, its business had unravelled: revenue cratered from $371 million to about $39 million in a single half-year as its panels were held out of the U.S. market, and its U.S. factory plans were paused (Solar Power World).
Control had already shifted: Maxeon's largest shareholder is China's TCL Zhonghuan, which moved to take a majority stake during the company's financial distress (pv magazine). The practical consequence for buyers is blunt: the classic SunPower/Maxeon IBC cells are no longer in routine new production through the original channel. They have become an orphaned, finite asset — which is exactly why so much surviving stock now trades as surplus. If you are weighing those cells against ordinary panels, our SunPower IBC vs standard monocrystalline comparison breaks down what you actually gain.
Are SunPower panels and cells still available — and what about your warranty?
You can still buy SunPower-branded systems and genuine SunPower/Maxeon cells, but not the way you used to. The warranty question is the harder one, and it has a clearer answer than most pages give: two dates decide it, and your system is covered by up to three separate warranties that failed at different times.
The three layers are worth separating, because losing one does not mean losing the others:
- Installation and workmanship warranty — issued by the installer. If that was the original SunPower Corporation, this is a claim against a company that no longer exists.
- Panel product warranty — issued by the manufacturer, Maxeon, and tied to the hardware rather than to the installer.
- Inverter warranty — issued by whoever made the inverter or microinverter, and unaffected by either bankruptcy.
Which warranty still applies to your system
| If your system was… | What that means in 2026 |
|---|---|
| Energized after 30 September 2024 by Complete Solar, Blue Raven Solar, or an affiliate | The warranties issued at signing remain valid and SunPower Inc. services them. This is the acquisition close date, and it is the dividing line the company itself uses. |
| Energized on or before 30 September 2024 | SunPower Inc. states its asset purchase did not include taking any interest in customer PPAs, leases, or in systems and equipment installed before that date. The installer-side warranty is a bankruptcy claim, not a serviceable warranty. |
| Installed before 5 August 2024 and self-registered with Maxeon before 31 December 2024 | The panels carry limited Maxeon warranty coverage. The registration window has closed, so if you never registered, this route is no longer available to open. |
| Fitted with microinverters | Maxeon's panel coverage excludes microinverters even on AC panels. Those are warranted by the inverter manufacturer, and Enphase — which supplied many SunPower systems — has continued to honour its own. |
Two practical notes. If your system is on a lease or PPA rather than owned, your counterparty is the financier or the servicer holding the contract, not either SunPower entity. And installers sometimes filed the Maxeon registration on their customers' behalf without saying so, so a system you assume is unregistered may not be — it is worth checking before you write the panel warranty off.
Sources for the dates above: SunPower Inc.'s own acquisition announcement and FAQ, and Maxeon's warranty page.
For the cells themselves, the supply picture has changed permanently. With Maxeon's manufacturing wound down, the classic C60 and later-generation IBC cells are now sourced primarily as genuine surplus stock — real, factory-made cells from existing inventory rather than fresh production. That is not a downgrade in the cell itself; it is a change in where it comes from and how you verify it. If you need to replace a damaged panel or keep a build running, see where to buy SunPower solar cells in 2026 for the realistic sourcing routes.
We hold genuine surplus IBC cells in stock in both formats: 125 mm back-contact IBC cells (3.7 W, full or cut) and 166 mm IBC cells (6.7 W), supplied with grade documentation. The full solar cells collection also covers standard PERC and TOPCon formats for module assembly.
If you own — or build with — SunPower IBC cells, here's the realistic path
If you depend on SunPower/Maxeon IBC cells for a product, a repair, or a small-batch build, the workable answer in 2026 is verified genuine surplus, sourced and graded carefully. Because the original supply is gone, the market now mixes high-grade factory stock with reclaimed, off-spec, and re-labeled cells — so verification matters more than ever. Before you commit to any surplus SunPower/Maxeon cells, confirm three things:
- Grade — ask whether they are A-grade cells or rejects/B-grade. Our guide to SunPower cell grades explained shows how to tell the tiers apart.
- Test data — request electroluminescence (EL) imaging and flash-test (I-V) data where the order size justifies it, so you are buying measured performance, not a claim.
- Spec match — confirm the cells can be matched (Imp/Isc) or cut to your panel's exact specification.
One point on language, because it protects you legally and commercially: a legitimate supplier of this stock is not affiliated with, endorsed by, or a successor to SunPower or Maxeon. What honest sellers offer is genuine, legally-sourced, de-branded surplus — not "new factory-direct" or "authorized" cells. As a sourcing partner with direct factory-side QA access, LinkSolar helps OEMs, integrators, and builders source and verify genuine surplus SunPower/Maxeon IBC cells, including grading and custom cut-to-size service for IoT and specialty panels. The brand may be gone; the cells, sourced correctly, are not.
FAQ: SunPower in 2026
What happened to SunPower solar panels?
The original SunPower Corporation (the installer, founded 1985) filed Chapter 11 bankruptcy in August 2024 and sold its assets. A separate company, Complete Solaria, bought the brand and now operates as SunPower Inc. The cell manufacturer, Maxeon, separately collapsed — so the panels you knew are tied to companies that have changed hands or shut down.
Who took over SunPower?
Complete Solaria acquired SunPower's brand, Blue Raven Solar, and dealer network out of bankruptcy in 2024, then renamed itself SunPower Inc. in 2025. It is a different legal entity from the original SunPower Corporation.
What is the new name for SunPower?
The active company is now legally SunPower Inc. (formerly Complete Solaria), trading under the original SPWR ticker on Nasdaq. The cell-making side remains a separate company, Maxeon Solar Technologies.
Are SunPower panels still available?
SunPower-branded residential systems are still sold by the new SunPower Inc. Genuine SunPower/Maxeon IBC cells, however, are now mainly available as verified surplus stock rather than new production, because Maxeon's manufacturing has wound down.
What happens to my warranty if SunPower went out of business?
It depends on two dates. If your system was energized after 30 September 2024 by Complete Solar or Blue Raven Solar, SunPower Inc. services the warranties issued at signing. If it was energized on or before that date, SunPower Inc. states it did not take on those obligations, and the installer-side warranty is a claim against the bankrupt entity. Separately, the panels may still carry limited Maxeon coverage if the system was installed before 5 August 2024 and registered with Maxeon before 31 December 2024 — that registration window has since closed. Microinverters are warranted by their own manufacturer either way.
Need genuine surplus SunPower/Maxeon IBC cells for a build or repair? We source verified, graded stock — with EL/flash data and custom cutting to your spec.