| There is a massive "but" at the end of that. For example: most grids in the western world rely on constant/predictable supplies of power. Nuclear/coal/gas/hydro provide a constant level of electricity with a clear spinup/spindown time. That being said, in hot countries solar is a good option, as when its hot, its generally sunny which means the aircon demand can be serviced well. But, thats assuming that the sun and the wind are constant. They are not, so you have to store that energy somehow. Grid scale batteries are just not really feasible yet, unless you happen to live in wales[1] or scotland[2]. However they now are only really there to overcome British tea breaks(thats a bit unfair). But they are the product of a nationalised energy infrastructure that thought about doing things properly. (now its just be massive diesel gennies to deal with the comedically narrow line between blackout and working grid) So actually the problem of generating electricity from natural sources is pretty much solved (barring costs) The biggest barrier is storing electricty for a stable grid. [1]https://en.wikipedia.org/wiki/Dinorwig_Power_Station
[2]http://www.scottishpower.com/pages/cruachan_power_station.as... |