Because the price of solar is going down rapidly and China is actively mining huge amounts of the raw materials necessary to produce solar panels. The amount of solar energy produced will increase very quickly as it will become (by far) the cheapest option and no longer requires subsidies.
Seems like those projected numbers are wildly out of line with the trend.
A lot of China growth and a lot of ¯\(ツ)/¯ growth.
Because the price of solar is going down rapidly and China is actively mining huge amounts of the raw materials necessary to produce solar panels. The amount of solar energy produced will increase very quickly as it will become (by far) the cheapest option and no longer requires subsidies.