UL (Underwriters Laboratories) has launched a new global service, offering a PV Power Plant Certificate to verify the performance of PV systems at several key stages, such as commissioning or during operation. The delivered certificate is also made publicly available in UL’s online database, providing greater transparency for all stake holders.
Major PV inverter manufacturer Sungrow Power Supply said its inverter testing centre in China has been qualified by Underwriters Laboratories (UL), to participate in the UL Witness Testing Data Program (WTDP).