Graphene glass promises 30% lower O&M, and the degradation curve decides the asset

Canal Solar published on 13/11/2026 content from ZNShine Solar about the graphene glass on its modules. According to the company, the technology increases light transmission between 600 and 1,100 nm, reduces reflection and makes cleaning easier, with up to 30% lower O&M cost at very dusty plants. The text consulted brings no independent test and no gain percentage.

The IEA-PVPS T13-30:2025 report, from February 2025, records cases in which 5% to 10% of the rear glass in glass-glass modules up to 2 mm thick broke within the first two years, a risk the IEC 61215 load test does not reveal. The same report points to UV-induced degradation in some TOPCon and heterojunction modules.

The switch from R$/Wp to LCOE that the article proposes depends on how much the module still generates in year 20. A coating that reduces soiling improves generation from the start. Glass thickness, linear warranty and combined tests define what is left at the end.

Price per watt decides the purchase. The degradation curve decides the asset. Asking for the linear warranty in numbers and for the glass test report is up to the buyer.