This article describes the optimum design of 3KW grid-tie solar system, which rooftop solar system can achieve maximum power output.
Roof solar system is a system which install solar panels on the roof, connected with main grid electricity systems, shared power supply task with it together. When there have the sunshine, the grid-tie inverter converts the DC power to sinusoidal AC power, which can be directly supplied to the AC load. Then, the remaining power supply main grid electricity, or the entire power generated into the grid electricity. When there have no sunshine, the main electricity provide electricity to all load.