Rising adoption of battery-powered transport and the further development of vehicle-to-grid, or V2G, systems -- which allow the two-way flow of electricity -- could offer a potentially better option to store renewable energy.
The policy contains significant exemptions, including for compelling national security concerns, foreign policy considerations or the need to expand energy access in vulnerable areas.
The blockade, in place since Nov. 20, threatens to halt output at the Chinese-owned mine in southern Peru, which produces some 2% of the world's supply of copper.