>Grid scale PV has to be continuously cleaned with deionized water because dust and greenery can dramatically decrease efficiency. If a leaf lands on a cell, en

>Grid scale PV has to be continuously cleaned with deionized water because dust and greenery can dramatically decrease efficiency. If a leaf lands on a cell, energy builds up like a capacitor in the shadowed area, and it can eventually decimate the whole cell. tl;dr the maintenance requirements of a solar panel are that it needs to be wiped down occasionally or it very gradually produces less power. >On wind: the intermittency is overwhelming Except in the places its been tried - e.g. Germany or Denmark or China. You can check out a live feed of how much energy is produced by wind energy in those countries and the intermittency is overwhelmingly underwhelming.