After the installation of the distributed generation system is completed, the grid company will carry out inspection and acceptance of the grid connection. After the acceptance is passed, two two-way electricity meters will be installed in the owner's home, and the power generation of the photovoltaic system and the electricity consumption of the city electricity will be separately measured
The two-way metering energy meter is an energy meter capable of measuring electricity consumption and power generation. The power and the electric energy are both directional. From the perspective of electricity consumption, the power consumption is regarded as positive power or positive power, and the power generation is regarded as negative power or negative. Power, the meter can read the forward and reverse power separately through the display and store the battery data.
Revenue = PV meter reading * (country supplement + province supplement) + two-way meter reverse reading * local desulfurization price
Installation of photovoltaics does not mean that there is no electricity in the grid. In the rainy days and no sunlight at night, it is still necessary to draw electricity from the grid. Therefore, it is necessary to pay the electricity bill to the grid company, and the electricity price charged by the grid is still higher than the price of the electricity sold. It is much higher.