Solar power generation must calculate the installed capacity based on the roof area. Additionally, factors that affect installed capacity include geographic latitude, whether the roof is flat or sloped, and other factors.
Take Shandong as an example:
The installed capacity of flat roofs per square meter is 80W; the installed capacity of sloping roofs per square meter is 120 W.
Take as an example the installed capacity of 10 kW
The daily electricity production of a power plant of 10 kW averages 40 kWh per day throughout the year (365 days).
If everything is for self-consumption,
Daily income = 40 kilowatt hours of electricity * (1 yuan for industrial electricity + 0.42 yuan for subsidy national + 0.05 yuan for Shandong province subsidy) = 58.8 yuan
p>Annual income=58.8*365=21462 yuan