What Are TOPCon Solar Cells? P-type PERC vs N-type TopCon?
Manufacturers of photovoltaic (PV) modules are always trying to find new, more advanced alternatives to increase solar panel efficiencies. Efficiency improvements can be achieved by innovative cell manufacturing technologies, and now, there are a few competing in the Solar PV market. The latest module trend expects that the market growth will be centred on HJT and TOPCon solar cells. The 2022 report from International Technology Roadmap for Photovoltaic (ITRPV) shows some expected trends for the next 10 years: ♦ PERC (Passivated Emitter Rear Contact) solar cell technology currently is the market leader with market share of around 75%. But the forecast is that the share of p-type mono-Si PERC cells will decrease to about 10% within the next 10 years. ♦ N-type TOPCon (Tunnel Oxide Passivated Contact) technology will gain market share from about 10% in 2022 up to 60% in 2033, becoming the mainstream silicon wafer type. It’s predicted that the biggest increase will happen from 2024. ♦