Abstract:The market development of user-side energy storage depends on its economic benefit. The economic benefit of user-side energy storage in the whole life cycle is calculated based on the current energy storage market, electricity price policy, charging and discharging efficiency, capacity attenuation and other factors in Chengdu region. The calculation also takes into account many factors, such as time-of-use tariff income, government subsidies, capacity tariff management, etc. Finally, the economic benefit of a commercial user is calculated based on its actual load wave.