Using #renewable #energy sources as baseline electric production requires solving the problem of their intermittency. Grids are not there yet, but solutions exist in concept - what conversion to renewable energy now requires is political will to invest in engineering development.
▻http://en.wikipedia.org/wiki/Intermittent_energy_source#Solving_intermittency
#electricity #power #wind #solar #geothermal #hydroelectric #HVDC #grid