A residential ESS is a battery system installed at home. Its main purpose is to store electricity generated at solar panels in batteries in the system for later use. A modular business takes place as Samsung SDI connects high-power batteries into modules, then makers of finished ESS products add components to the modules, enclose and sell them to consumers.

Samsung SDI’s high-capacity ESS modules are scalable to 39 basic modules with the capacity of 4.8kWh. This means the storage capacity can increase up to 39 times or that a maximum of 188kWh can be stored. It is close to the amount of electricity consumed by 20 homes for a day, given that the daily average of electricity consumption at home in Europe is around 10kWh. Samsung SDI expects to secure European homes with varying electricity demands as its customers through its high-capacity ESS modules.

Samsung SDI is also debuting High-voltage ESS modules that can scale up to 600V from existing 50V (volt) voltage. High-voltage ESS modules generate high volt by connecting cylindrical batteries. High-voltage battery modules enable homes to generate 220V and save costs of parts needed for voltage transformation.

One of the advantages of Samsung SDI’s residential ESS modules is high scalability. Samsung SDI plans to provide ESS modules fitting the various needs of ESS makers on time by applying differentiated scalability. If modules are highly scalable, only minor design changes are needed to meet customer demands, so design cost and time can be saved.

Samsung SDI plans to start mass producing residential ESS modules in the second half of this year. It has conducted tests in cooperation with customer companies from 2016 and expects to achieve their results in 2018.