Industrial and commercial solar power can be delivered across China cheaper than grid electricity , according to a study published in Nature Energy . The confirmed projects could be built without coal at lower prices than those offered by grid power , with over 20 % able to produce electricity at cheaper prices than coal . Renew. The " stunning " performance was attributed to technological advances , a fall in costs and government support since 2000 . The new Chinese tax - free solar policy has guaranteed the current coal - fired power price for solar , creating a kind of low cost to build low - risk projects , BloombergNEF ’s Jenny Chase added .
Industrial and commercial solar power can be delivered across China cheaper than grid electricity , according to a study published in Nature Energy . The confirmed projects could be built without coal at lower prices than those offered by grid power , with over 20 % able to produce electricity at cheaper prices than coal . The " stunning " performance was attributed to technological advances , a fall in costs and government support since 2000 . The new Chinese tax - free solar policy has guaranteed the current coal - fired power price for solar , creating a kind of low cost to build low - risk projects , BloombergNEF ’s Jenny Chase added .