Wind turbines and solar panels are seen at a wind and solar energy storage and transmission power station from State Grid Corporation of China, in Zhangjiakou of Hebei province, China, in this March 18, 2016 file picture. China is expected to raise its power storage capacity by ten-fold to 14.5 gigawatts by 2020, as the world’s second-biggest economy tries to cut massive waste from renewable energy projects, an industry association said. China is the world largest wind and solar power producer, but some regions are estimated to be losing more than 40 percent of their power because of technical restraints and bottlenecks in the grid, alongside weak power demand growth. Storage technologies, such as pumped storage hydropower or lithium ion batteries, are expected to play a critical role in improving the China’s capacity to make better use of renewables. International companies involved in providing storage technology to China include […]