The global residential energy storage market reaches about USD 21.1 billion in 2026 and is expected to hit USD 77.4 billion by 2036, achieving a 13.9% CAGR. Surging electricity prices, widespread residential photovoltaic installation and clean energy subsidies worldwide jointly fuel market expansion. LFP batteries dominate over 87% of residential installations thanks to safety and cost advantages. Europe leads the market due to mature net metering policies, while the Asia-Pacific region registers the fastest growth. Household batteries now support virtual power plant access for extra revenue instead of merely emergency power supply. Modular 5kWh-20kWh products become mainstream consumer choices. Driven by rising demand for energy independence, the residential storage industry will maintain double-digit growth in the long run.