＜SCHOOL＞
４.TRIVIA
《Solar power generation》
An avarage of 20 pieces are carried on the weight of one piece of solar panel at approximately16kg on one household of roof.
In other words the appliance to attach elsewhere really adds 16×20=320kg, and the introduction quantity of the solar panel with the weight of 400kg is astonishment.
Some people think solar panel is very heavy .
But ,it's no problem! This force spreads on roof.
It's 20kg on 1㎡. Because no problem.
For example , its force is that child lying on roof.