The 1 energy storage power station with energy storage time of 2 hours is a new type of power backup system, which has the advantages of high efficiency, fast response and high reliability, and is widely used in power systems to make up for the difference of instantaneous load and slope and meet the demand of high-quality electric energy. 4-hour energy storage usually refers to the energy storage technology with continuous discharge time of not less than 4 hours and service life of not less than 20 years.
2. The energy storage time is 2 hours. Energy storage power station mainly uses technologies such as flow battery or thermoelectric converter to store energy, which is mainly suitable for meeting the demand of sudden load. Four-hour energy storage technology can realize the energy storage system of charging and discharging cycles across the day, month and even season, so as to meet the long-term stability of the power system, better realize the power translation and transfer the power of the renewable energy generation system to the peak power demand.