IEA (2021), Demand for copper and aluminium for electricity grids in the Stated Policies Scenario, 2020-2040, IEA, Paris https://www.iea.org/data-and-statistics/charts/demand-for-copper-and-aluminium-for-electricity-grids-in-the-stated-policies-scenario-2020-2040, Licence: CC BY 4.0