In Parallel with Grid supply (CEB/LECO), Solar power system will be setup in your house to generate electricity (units/kWh) equal to your average monthly consumption.
The Solar Inverter converts direct current (DC) into alternate current (AC) and regulates power flow between the grid and your house.
Energy produced during the day time will be first, used by house appliances and the excess fed in to the grid (Export).
In the absence of Solar Power (Night time/Rainy, Cloudy days) house run by grid energy (Import).
Smart meter installed by CEB/LECO to records monthly import-export difference (Net Reading) which amounts to monthly bill calculation.
Having net exports reduced your bill to a Rs.30/= Service charge only. Net imports will be credited to your billing account and carried forward.