Climate Central : The solar sector is growing so quickly as solar panel costs drop that employment in the industry jumped 21.8 percent in 2014, adding 31,000 new jobs in that time for a total of 174,000 solar workers nationwide … Solar employment is expected to jump by another 36,000 workers this year.  

“The solar power industry employs a lot of workers despite solar power being only a tiny fraction — less than 1 percent — of total U.S. electric power generation … The industry’s growth is based mostly on the falling cost of photovoltaics … Since the late 1970s, solar panel costs have fallen 99 percent.”