Compact thermal storage

Prototype thermal battery suitable for T ~ 45 – 60°C

There is an increasing need for flexibility within the energy system, caused by natural fluctuations of renewable energy. This flexibility can be realised with compact thermal storage and this facilitates continued growth of sustainable heating. Especially for low temperature sources (T ~ 45 – 60°C) this form of heat storage is an untapped area. In this project ARES/de Beijer RTB built a prototype set-up of a thermal battery for low temperatures. The experimental results were used to investigate the practical, economical and energetic feasibility of sustainable heat generation and compact thermal storage.