As the wind is hard to predict, the sun is shining almost everyday. That makes the sun a reliable energy when consumers need it. Almost as cheap as wind energy, the solar panels have a really low maintenance.
The sun could be the world’s largest source of electricity by 2050, ahead of fossil fuels, wind, hydro and nuclear, according to a pair of reports issued in 2014 by the International Energy Agency (IEA).
1888 – Russian physicist Aleksandr Stoletov built the first cell based on the outer photoelectric effect discovered by Heinrich Hertz in 1887.