Global installed energy storage capacity by scenario, 2023 and 2030 - Chart and data by the International Energy Agency. Data source: IRENA (2025) – Learn more about this data processed This is the citation of the original data obtained from the source, prior to any processing or adaptation by Our World in Data. To cite data downloaded from this page. GW = gigawatts; PV = photovoltaics; STEPS = Stated Policies Scenario; NZE = Net Zero Emissions by 2050 Scenario. Other storage includes compressed air energy storage, flywheel and thermal storage. Hydrogen electrolysers are not included. While remaining a modest contributor to overall electricity generation for now, solar's share rose to 7% in 2024 – nearly doubling in just three years. Annual deployments are also set to scale in Germany, the UK, Australia, Canada, Saudi Arabia and Sub-Saharan Africa, driven.
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