Off-Grid / Standalone PV Solar System
For situations where mains power is not available, or the client wishes to become completely independent of the grid. All power is generated by the solar panels; a battery bank stores excess power for use at night or when the sun is not shining.
Grid-Tie PV Solar System
Very popular in European countries, where residents may feed excess power back into the grid; solar panels provide power during the day, and at night power is drawn from the mains. There is no battery bank or power storage facility in this configuration.
Grid-Tie PV Solar System with backup
Similar to the Grid-Tie PV Solar System but a battery bank for storage of excess power is present; client would not have to use mains if load is not excessive. Due to the fact that a grid-tie inverter must cease operation in the event of a grid failure – ie neither solar nor grid power can be fed in or out while the grid is out of commission – a small, separate backup system is recommended.
Hybrid PV Solar System with backup
With a Hybrid System offers, essential loads are fed by direct solar during the day, whether the grid is active or not. The grid feeds non-essential loads. Excess solar is directed first into the battery bank and then to non-essential loads, to cut down on your electrical bills. In the event of a grid failure at night, essential loads draw power from the battery bank.
