Envision and ju:niz Add a 442 MWh Battery in Bavaria as TCL SunPower Launches Origin Back-Contact Panels in Europe With a 40-Year Warranty
Two announcements on November 9 cover the two halves of a modern renewable system in Europe: storage to hold the power and panels to make it. Envision Energy and ju:niz Energy agreed a 442 MWh battery project in Bavaria. TCL SunPower opened European orders for Origin, a new line of back-contact solar panels with a 40-year warranty.
A third battery project in Vöhringen
The new project, Smareg 13, sits in Vöhringen in Bavaria, next to the Smareg 12 battery that is already running. It stores 442 MWh, using Envision’s Gen 8 battery system with four hours of storage and grid-forming capability, meaning it can help hold the grid’s voltage and frequency steady rather than just follow it. A low-noise design lets it go near homes. ju:niz develops, finances, builds and runs the site; Envision supplies the batteries and project delivery.
It is the third project the two companies have done together, bringing their total to nearly 600 MWh. Envision notes the new one is moving ahead before the first two have finished delivery. The release gives no power rating and no completion date.
Four-hour storage is the point. Germany’s solar peaks at midday and its demand peaks in the evening. A battery that charges at noon and discharges after dark earns from that price gap and also sells grid services. As more solar comes online, that gap tends to widen, which is why developers keep adding sites.
SunPower Origin
Origin is TCL SunPower’s eighth-generation back-contact panel. All the electrical contacts are on the back of the cell, so the front has no metal lines shading it. TCL SunPower is part of China’s TCL group and combines the SunPower brand for homes with TCL Solar for lower-cost products. It is not the US installer of the same name, and the release does not mention Maxeon.
Two versions are on offer:
- Residential: 54 cells, all black, up to 505 W and 24.7% efficiency
- Commercial: 66 cells, bifacial, up to 615 W, using light reflected onto the back
The company makes a few claims worth noting. Cells are patterned by lithography rather than lasers, which it says means fewer microcracks. A shaded cell stays below 100°C, a common cause of panel failure, and the panel holds TÜV Rheinland’s top shade-resistance rating. Annual power loss is guaranteed at no more than 0.25%, and the temperature coefficient is -0.26% per degree.
The 40-year warranty covers the product, power output and service, and is backed by local SunPower companies and TCL’s balance sheet. The company says only 0.005% of the more than 15 GW of its back-contact panels installed have come back under warranty. That is its own analysis, not an independent one.
Orders opened on November 10, only through approved SunPower Partner installers, with first deliveries before the end of the year. No price was given.
What it means for buyers
For a homeowner, a 40-year warranty matters only if the company backing it is still around in 2066. That is why TCL leans on its group’s size. Back-contact panels cost more than standard ones, so the case rests on better output in shade and heat, and on the panel lasting longer. For a project developer, Envision and ju:niz show that batteries are now built in repeat batches, not one-offs. The money in German renewables increasingly sits in storage, not just in more panels.