The picture emerging from a sector forecast by the Global Solar Council to see well over 600GW of plant switched on by the end of the decade is one of a “material difference” between developments operating “in the expected range” and those flowing electricity “at optimum levels”.

“Solar has had more than a decade of dazzling growth and, overall, PV system performance has led to increased investor confidence,” Ray Hudson, DNV GL’s global solar segment director, tells Recharge.

“But