How to calculate the Internal Return Rate of solar power plant?
GOLDSUN company video

As China government has the regulation that before the 30th of June 2017, the individual owner of the rooftop solar power plant can get the previous tarrif approved during the year 2016 with higher rate then the new tarrif of the year 2017, more and more individuals started to build the rooftop solar power plant. Therefore, manufacturers of solar panel and inverter are in special situation to deliver the material to the market. However, most of the manufacturers shall do their best to serve the market.