In the past year, Cellcius has been working on scaling up and further developing the second generation of home batteries. The goal was to develop a prototype of a home battery that is being tested in three European countries (France, the Netherlands and Poland). For this second generation, the focus is on modularity and scalability. This has been done within the European project HEAT-INSYDE. Together with TBRM Engineering Solutions and Be-Sol, the first version has been built and tested in a lab environment. From next summer the 2.0 systems will be placed in the test houses.


HEAT-INSYDE is a so-called "Innovation Action" (IA), funded by the European Union's Horizon 2020 research and innovation programme. Through an industry-dominated consortium, this project brings together all relevant stakeholders to produce a concrete solution for affordable, high-impact and long-lasting solutions to the sustainable energy issue.

The first test system consists of 60 compartments filled with the potassium carbonate composite, with a total volume of 1 m3 of active material. The system has a storage capacity of 200 kWh and can deliver 2 kW of power. The second version of the system, which will be placed in the homes, consists of 20 compartments with a storage capacity of 67 kWh and has a power output of 2 kW and the volume of a standard refrigerator.