This regulation was promulgated to accelerate the utilisation of solar energy to produce electriciy and increase share of renewable energy in the national energy mix. The objective of installation and utilisation of rooftop solar panel is to reduce customers electricity consumption from PLN (Perusahaan Listrik Negara public power cie). The regulation specifies that rooftop solar panel consists of solar module, inverter, electricity interconnection, secure system as well as the kWh meter for export and import. As for industrial purposes, industrial customers of PLN may install rooftop solar panel either in as on-grid (connected to PLN’s grid) or off-grid (separated from PLN’s grid). For on-grid installation, the industrial customers will be subject to capacity charges to be paid every month and will not be borne with emergency energy charge. The customer shall also report the operational plan of the on-grid Rooftop Solar Panel to PLN. As for off-grid rooftop solar panel, no capacity charge and emergency energy charge will be charged by PLN.