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Principle of grid-connected solar systems

Solar PV power is relies on solar component, using semiconductor material of electronics characteristics, dang too Sun irradiation in semiconductor PN knot Shang, due to P-N knot potential base district produced has strong of within built electrostatic field, thus produced in potential base district in the of non-balance electronic and hole or produced in potential base district outside but diffusion into potential base district of non-balance electronic and hole, in within built electrostatic field of role Xia, their to instead direction movement, left potential base district, results makes p district potential increased, n district potential reduced, Thus generating a voltage and current in the external circuit, converting solar energy into electricity.