As of the end of 2013 , cumulative capacity of solar PV accounted for almost 79 gigawatts .
As of the end of 2013 , cumulative capacity of solar PV generated more than 80 terawatt - hours in the European Union .
As of the end of 2013 , cumulative capacity of solar PV accounted for almost 79 gigawatts and generated more than 80 terawatt - hours in the European Union .