Global residential storage falls into three demand clusters with distinct features. Europe centers on PV self-consumption. Germany and the Netherlands phase out solar feed-in tariffs, pushing households to install batteries for higher self-consumption rate and steady market growth. The US market prioritizes power outage backup and VPP revenue, with frequent extreme weather accelerating household storage adoption and VPP commercialization. Australia witnesses explosive growth with AUD 7.2 billion subsidies cutting the payback period to 3-5 years and installation growth exceeding 200% year-on-year. Frequent power cuts and unstable grids boost off-grid storage demand in Southeast Asia and Africa. Regional differences create differentiated products: premium safe batteries prevail in Europe and America, while cost-effective basic storage sells well in emerging economies.