Solar panels are everywhere: perched on thatched roofs in rural Kenya, helping Indian farmers pump groundwater for their fields, and powering United States military bases.
Solar power accounted for more than a third of all electricity generated from energy sources that came online in 2017, a larger share than any other new source, the United Nations Environment Program said in a report issued Thursday. And solar power is becoming much more affordable. The cost of electricity from large-scale solar projects has dropped by 72 percent since 2009, according to the study.
