An on-grid or grid-tied solar system is a system that works along with the grid. This means that any excess power can be fed to the grid through net metering. Many residential users are opting for an On-grid solar system as they get a chance to enjoy credit for the excess power their system produces and save on their electricity bills. You will always have power either from the solar system or from the grid. They do not have batteries.
The solar off- grid system converts sunlight into electricity without connecting to the local utility grids. Off-grid solar energy system includes storage solution for batteries which allows excess electricity from wasting and can be conserved for future uses.
Solar water pump is driven by the electricity produced by the PV (photovoltaic) panels or the radiant heat generated by collected sunlight. The solar powered pump uses solar energy for operation. A solar powered water pump is more efficient to operate. These pumps have low maintenance and installation costs.
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