Alpha Batteries are one of the worlds leading specialist storage battery producers dealing in over 80 countries world wide. Manufacturing for both domestic and commercial battery storage, up to 100kWh per system. They have over 75,000 installations operating across the world in 2022. Alpha ESS - Smile B3 System Offering a fast responsive and uninterrupted power supply. The 5 kW single phase hybrid inverter features an intelligent modular design with 24/7 monitoring both online and via the Alpha ESS app. The systems start with either a 2.9kW or 5.0kW battery and smart inverter system, but the system can then incorporate additional storage at a later stage with the purchase of an additional battery capacity, in 2.9kW or 5kW lithium battery units, which are simple and easy to install, potentially taking your domestic system up to 30kW