Solar is poised to overtake coal as China’s largest source of installed power capacity this year, as Beijing steps up its green transition with a renewed emphasis on efficiency, quality and orderly growth over sheer scale.Total installed solar capacity reached 1.27 billion kilowatts (kW) by the end of June and was projected to surpass coal before the end of the year, state-run People’s Daily reported on Wednesday, citing the China Photovoltaic Industry Association (CPIA).Solar power generation...