Rooftop solar in China typically costs about CNY 6,810 per kW installed, and household electricity is around CNY 0.644 per kWh. The average sunshine is about 4.5 peak sun hours a day.
As a rough example, a 5 kW home system would cost about CNY 39,160, make around 6,159 kWh a year, and save about CNY 3,967 a year. That is a payback of roughly 9.9 years.
Rooftop solar
For homes and businesses. Size, cost, savings and payback.
Open rooftop calculatorSolar plant
For larger projects. Project returns and break-even price.
Open plant calculatorThese are typical estimates, not quotes. Replace them with real quotes before you decide anything.