GlobalData Forecasts Global Battery Storage Capacity to Rise Sixfold by 2030
GlobalData forecasts that global battery energy storage capacity will rise about sixfold by 2030, from roughly 224.8 GW at the end of 2025 to about 1,300 GW. That implies growth of about 42% a year, reported by Electrical Review on 27 July.
What the forecast says
The 42% annual growth rate comes from GlobalData's analysis and is the basis for the sixfold headline. Our own division of the two capacity figures gives about 5.8 times, consistent with that. China and the US held 74.6% of installed capacity at the end of 2025, according to ESS News, and are expected to remain the largest markets.
In the US, ESS News reports record additions of 57.6 GWh in 2025 and 9.7 GWh in the first quarter of 2026. For Britain, Electrical Review says the grid-scale fleet was 7.5 GW at the end of 2025 after 2.3 GW was energised during the year, against a government target of 23 to 27 GW by 2030.
Why longer batteries
GlobalData expects the market to shift towards four-hour systems as wind and solar grow. Analyst Rehaan Shiledar describes energy shifting as the fulcrum of the battery storage value case, meaning storing surplus renewable power and releasing it at peak demand. That is the same basic job a home battery does with rooftop solar.
What the forecast does not tell us
This is a forecast, and the figures we saw are mostly about grid-scale storage. We could not find a split for home batteries in the coverage we read, so it says little about how many households will buy one. Forecasts of this kind also depend on policy, supply chains and grid connection speed, all of which can change.
For households, the practical message is smaller than the headline: more storage on the grid can make daytime solar easier to absorb and evening peaks easier to meet. How that reaches your bill depends on your tariff and country. See how the grid and home batteries interact and what Britain's clean flexibility roadmap says about smaller batteries.
Sources
- Electrical Review: Global battery storage capacity set to rise sixfold by 2030
- Energy Storage (ESS News): World's battery storage capacity to grow sixfold by 2030, says GlobalData
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