Components of Grid Tie Solar System : Grid tie solar systems are of two types one with single macro central inverter and other with multiple micro inverters. In the former type of solar system, the solar panels as well as grid supply are connected to a common central inverter called grid tie inverter as shown below.The inverter here converts the DC of the solar panel to grid level AC and then feeds to the grid as well as the consumer’s distribution panel depending upon the instantaneous demand of the systems.
Offgrid solar system : An off-grid solar system is more popular and comes with a power backup. It works independent of the grid. Most home appliances such as TV, cooler, AC, pump etc. can work through this system. For instance, a 1 kW off grid solar system is sufficient for a 2-4 BHK house. But if you also want to run 1 W pump in your home you could use a 3 kW solar system. If you are planning to run an AC then you should use a 5 kW system.
Solar Water Pumping System The photovoltaic array converts the solar energy into electricity, which is used for running the motor pump set. The pumping system draws water from the open well, bore well, stream, pond, canal etc. The system requires a shadow-free area for installation of the Solar panel.