Table 3.1. Energy Storage System and Component Standards 2. If relevant testing standards are not identified, it is possible they are under development by an SDO or by a third-party testing entity that plans to use them to conduct tests until a formal standard has been developed and approved by an SDO.
The Energy Storage Inspection 2023 analyzed and compared the energy efficiency of 18 battery systems. With an average inverter efficiency in discharge mode of 97.8 % and a settling time of less than 0.2 s, new records were set. In the reference case up to 5 kW the hybrid inverters F1 and C1 scored best with an SPI (5 kW) of 92.6 %.
The Standard covers a comprehensive review of energy storage systems, covering charging and discharging, protection, control, communication between devices, fluids movement and other aspects.
For the sixth time in a row all manufacturers of solar energy storage systems for residential buildings were invited to take part in the Energy Storage Inspection 2023. 11 manufactures participated in the comparison of the storage systems with measurement data of 18 systems. Two manufacturers decided to participate anonymously.
Another long-term benefit of disseminating safety test information could be baselining minimum safety metrics related to gas evolution and related risk limits for creation of a pass/fail criteria for energy storage safety testing and certification processes, including UL 9540A.
It is recognized that electric energy storage equipment or systems can be a single device providing all required functions or an assembly of components, each having limited functions. Components having limited functions shall be tested for those functions in accordance with this standard.