In 2026, household energy storage accounts for 27% of global total installed energy storage capacity, commercial & industrial storage 35%, utility-scale storage 38%. Regionally, Europe ranks first with 42% global residential storage share driven by energy independence demand, North America takes 26% supported by popular solar panels, Australia plus Japan & South Korea account for 21%, while Southeast Asia and Latin America occupy 11% with fastest growth. Driven by distributed photovoltaic development, residential storage proportion will exceed 32% globally by 2028.