June 19, 2018 Coal to shrink to just 11% of global electricity generation by mid-century, from 38% now, as comparative costs shift heavily in favor of wind, solar and batteries   London and New York, June 19, 2018 – Wind and solar are set to surge to almost “50 by 50” – 50% of world generation by 2050 – on the back of precipitous reductions in cost, and the advent of cheaper and cheaper batteries that will enable electricity to be stored and discharged to meet shifts in demand and supply.Today, Bloomberg NEF (BNEF) published its annual long-term analysis of the