Sarlahi DC microgrid is Nepal’s first DC micro grid. The system provides lighting and fan to 45 household in this rural village. The DC micro grid is more cost effective and modular than AC micro grid. The system was designed based on the central solar charging station that charges all the batteries connected to DC distribution line. The DC distribution line length is around 450 meters. The UV 25 mm2, 2 core cables are used as distribution line. All the households are connected with service cable (UV 6mm2, 2 core) through the copper bus bar junction box located at the top of the GI pole. Individual household has DC Breaker, Step down charge controller, Battery, DC LED Bulb and DC Fan. Wiring has been completed in all houses of that community. Two individual earthing have been installed for the solar charging station. One for DC surge protection device while the other for the lightning arrester. Earthing chemical compound is used as a material that reduces the resistance of the earth where the copper plate is located inside the earth surface.

Wiring has been done inside the individual household with the help of copper wire. The wire is fixed on the wall of house with the help of telephone clip. Also, all the screw holders, switches and power socket are fixed with the help screw.