Our New age Rooftop systems do not need batteries and are connected to the grid. Buildings that use a grid connected PV rooftop system can use a portion or all of their energy needs from solar energy, and still use power from the electricity grid, whenever needed (during excess load or on cloudy dull and rainy days or during the night). Also, any excess solar power that is generated and not consumed is exported to the electricity grid and is recorded through Net Metering technology, giving the best of both worlds. Electricity flows back-and-forth to and from the main grid according to sunlight conditions and the actual electrical demand at that time.
SOLAR ROOFTOP
