In regards to solar, Huawei has a strong foothold in the global PV market. Huawei Technologies is a Chinese technology company with headquarters in Shenzhen, Guangdong.
Huawei recently launched the new, in-house developed energy storage system (ESS) to suit the Huawei single-phase and 3-phase hybrid inverters. The stackable battery system consists of individual 5kWh modules that operate at optimal voltage and can operate independently, which makes it quite different from other high voltage battery systems that work in series. Having each module manage itself will help maintain its lifespan and durability, even if there is a variation in temperature or a later addition of a module. In other words, you can add new modules at any time, even after 10 years, and they will still perform as expected.