Global renewable power capacity is predicted to increase by 4 600 GW, or more than double, by 2030, led by the rapid rise of solar PV, says intergovernmental organisation the International Energy Agency (IEA). Solar PV will account for about 80% of the global increase in renewable power capacity over the next five years, driven by low costs and faster permitting timeframes, the organisation says in its ‘Renewables 2025’ report.