Global installed behind-the-meter power storage capacity by segment, 2020-2031

Sources

IEA analysis based on data from BloombergNEF (2026), Energy Storage Market Outlook 1H 2026; RWTH Aachen University (2026), Battery Charts, using data from Bundesnetzagentur (2026), Marktstammdatenregister (for Germany); Terna (2026), Data Portal: Storage (for Italy); Australian Government Clean Energy Regulator (2026), Small-Scale Installation Postcode Data (for Australia).

Notes

Residential systems are installations with less than 30 kW of power storage capacity and below 30 kWh of energy storage. Commercial systems have power storage capacity of 30 kW to 1 MW, or energy storage of 30 kWh to 1 MWh.