China aims to expand its west-to-east power transmission network to more than 420 gigawatts (GW) by 2030, increasing the share of renewables to about 30 per cent of total electricity output as it pursues a greener transition and a more reliable power supply. The targets were outlined in guidelines issued by the National Development and Reform Commission, the country’s top economic planner, together with the National Energy Administration. In addition to strengthening long-distance transmission...