For whole-house power backup of luxury villas, 10kWh vertical energy storage is optimally equipped with a 10kW grid-tied hybrid inverter, with safe continuous maximum load of 9.5kW and instantaneous peak load of 18kW. It supplies central air conditioning, floor heating, smart home and high-power kitchen appliances uninterruptedly, switching within 10ms at power failure, reaching UPS power supply level. It serves single-family villas, duplex houses and small private clubs, storing surplus PV power by day and switching to storage power once grid fails. The global high-end residential storage market centers in the US, Germany and Northern Europe where residents pursue stable power supply. 10kWh vertical storage is easy to install and elegant without damaging villa decoration. Statistics show 10kWh products occupy over 40% villa supporting storage market, and the market expands alongside popular global smart homes.