HEAT-INSYDE advances a ground-breaking closed-loop concept using thermochemical material to a
compact domestic heat storage prototype at a Technology Readiness Level of 7 through a user-centric
approach with real-life demonstrations in 3 different European climate zones. HEAT-INSYDE delivers an
affordable, highly compact solution (< 1 m3) with robust, long term (> 25 years) performance. Its hybrid
functionality combines compact storage with a highly efficient heat pump effect. The system balances
central (grid) and decentral renewable energy supply, allowing configuration in both heat and electricity
systems and creating new opportunities for grid flexibility.
The proposal is based on two recent technological breakthroughs. The first concerns a multicyclic stable
thermochemical material with a high energy density that can be produced on(semi-) industrial scale at
low costs. Prototype heat storage systems will be implemented in residential buildings in the
Netherlands, France and Poland. As part of the project, Fasada has established cooperation with the
Municipality of Gdynia that decided to make one of their residential buildings available for demonstration
purposes. The project consortium gathers 12 partners from 6 European countries and it is coordinated
by the TNO from the Netherlands.