Rooftop photovoltaic power stations, or rooftop photovoltaic systems, are rooftop photovoltaic systems installed in residential, industrial or commercial buildings and structures. Its main goal is to generate electricity for the customer’s own consumption, or to benefit from a “grid metering” program that allows connection to the grid to sell the energy produced. In any case, its purpose is to save customers on electricity bills.
Japan is one of the major countries in the growth of the rooftop solar panel market in the Asia-Pacific region, and has made considerable contributions to the growth of the rooftop solar panel market. According to data from the International Energy Association IEA, Japan’s contribution to the total global solar module production is close to 4%. The FiT plan, coupled with the short construction period of rooftop solar photovoltaic power stations, has promoted the implementation of rooftop solar photovoltaic power plants.
According to the latest statistics released by the IEA, by the end of 2020, Japan’s cumulative rooftop photovoltaic power generation capacity for commercial and residential buildings has reached 41GW, and last year’s new photovoltaic power generation capacity was approximately 2.6GW.