Household energy storage serves villas and houses with 5–20kWh capacity for self-use of rooftop solar and emergency power cut backup. Compact wall-mounted design adopts air cooling with quiet, safe and plug-and-play features and low charging-discharging frequency for 8–12-year service life. Industrial storage applies to factories and data centers at 100kWh-MWh level, container layout and liquid cooling system. It realizes peak shaving and grid frequency regulation with 24/7 high-frequency cycling and redundant structure, boasting 15–20-year lifespan. Residential products prioritize safety while industrial ones focus on high-power stability.