Half-cut panels use solar cells cut into two halves. Each half carries less current, which lowers resistive losses, and the panel is wired in two halves, so shade on one part costs less output than in an older full-cell panel.
Why does shade hurt solar panels so much?
Cells in a panel are connected in series, like links in a chain. A shaded cell restricts the current of its whole group. Bypass diodes let current skip a shaded group, but that group’s output is lost.
How half-cut cells help
- Lower current per cell means lower resistive (heating) losses.
- Two half-panels working in parallel: shade on the lower half leaves the upper half working.
- Cooler operation at hot spots, which supports long-term reliability.
Tenzor panels
Pulsar uses 144 half-cut cells and Stellar 132 half-cut cells, both N-TOPCon with 16 busbars. See Pulsar and Stellar.
Design still matters
Half-cut cells reduce shading loss; they do not remove it. Keep panels clear of shade from tanks, parapets and trees during the main sun hours, and orient panels in portrait or landscape to suit the shade pattern.
FAQs
Do half-cut panels need a different inverter?
No. They connect to standard string inverters such as Supernova.
Is a half-cut panel two panels?
No. It is one panel internally wired in two halves.