Clean energy’s next trillion-dollar business

Decarbonising the world’s electricity supply will take more than solar panels and wind turbines, which rely on sunshine and a steady breeze to generate power. Grid-scale storage offers a solution to this intermittency problem, but there is too little of it about. The International Energy Agency (IEA), an official forecaster, reckons that the global installed capacity of battery storage will need to rise from less than 200 gigawatts (GW)…