What is the price of photovoltaic power generation system on the roof of the family?

Installed capacity 1 kW, average annual power generation 130 ~ 140kWh. According to statistics, at present, China's per capita monthly electricity consumption is 450 degrees. This means that as long as it is installed with 4 kilowatts, the cost of less than 50,000 yuan can guarantee the electricity consumption of the whole family. Ordinary photovoltaic power generation systems are installed between 30,000-65,438+10,000 yuan, and the cheapest is more than 65,438+10,000 yuan. Secondly, the state implements a full subsidy policy for distributed photovoltaic power generation. The electricity price subsidy standard is 0.42 yuan per kWh, which is paid by the Renewable Energy Development Fund and transferred by the power grid enterprises. The subsidy period is 20 years. He calculated an account for the reporter: Take Dongyiwan Villa as an example, the average monthly power consumption in summer is 1.400 kWh, and the average monthly power generation of its installed 10 kW rooftop photovoltaic power station is 1.400 kWh. According to the step electricity price of Shunde residents, the household photovoltaic power station saves electricity 1.400 kwh× 0.92 yuan/kwh = 65442. With the state subsidy 1400 kwh ×0.42 yuan/kwh =588 yuan, the monthly power generation income is 1876 yuan, and the annual power generation income is 225 12 yuan, calculated according to the total investment 120000 yuan.