Manual polishing of photovoltaic panels

DO NOT use any polish, but use a specific polish designed for plastics such as the Novus range or Plexus or 3M. Generally hand polishing is recommended. [pdf]

User energy storage

With the new round of power system reform, energy storage, as a part of power system frequency regulation and peaking, is an indispensable part of the reform. Among them, user-side small energy storage device. [pdf]