These solar backsheets are made using a process that converts PET materials into the monomer unit BHET by glycolysis. Mylar UVHPET backsheets have a lower carbon footprint than other backsheets, are fluorine-free (unlike some other products), and can make a significant contribution to the recycling of plastic waste given that a one-megawatt installation reuses over 16,000 PET bottles. The system has the potential to create a closed-loop recycling process for solar modules in which the used backsheet material could be recovered and reprocessed.
See also: Renewable hydrogen key for the decarbonisation of European industries
The international panel of experts for the Intersolar Awards 2021 was impressed by the game-changing idea and message of creating a circular economy for PV, promoting more sustainability, and improving the life cycle assessment in solar power. In the same price and performance range as conventionally produced backsheets, this product impacts positively on society and the environment. (mfo)
