Under the scenario deemed most likely by BNEF in a new study,China’s total power generating capacity would roughly double by 2030 to 2.7terawatts.

New solar, wind and hydro installations could accountfor 44% of new capacity growth by then, at 47GWper year.

China will have to invest about $159bn per year – or about 2% ofits 2012 GDP – to accommodate the expansion of generating capacity assumed byBNEF.