Project name TESSe2B
October 2015 - September 2019
Total budget: H2020: € 4,311,700
  • End consumers
  • Heating and cooling system manufacturers and installers
  • Research institutes and universities
  • Public authorities
  • Non-profit organisations
  • Consumer organisations
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TESSe2b – a project funded by the European Commission through the H2020 programme – is developing a complete solution for residential buildings through the thermal storage of renewable energy.

The TESSe2b project facilitates the design, development, validation and demonstration of a low-cost, modular thermal storage technology based on solar collectors and highly efficient geothermal heat pumps for heating, cooling and the production of domestic hot water (DHW).

Three pilot premises (in Austria, Spain and Cyprus) evaluate the technical and economic viability of this technology, which makes use of compact thermal storage tanks with phase-change materials and an intelligent energy control system.

The project’s ultimate objective is the development of a technology that allows a combination of renewable sources to be thermally stored, with the aim of correcting the disparity that often exists between energy supply and demand in residential buildings.

Participation of Ecoserveis

We are responsible for the project in Spain and we are managing the pilot test in Calonge de Segarra.

Related projects


  • Develop and assess low cost thermal storage technology.
  • Correct the disparity between energy supply and demand in residential buildings.

Results achieved

3 pilot tests, 1 of which in Catalonia
Predicted energy savings of 30%



Project manager

Geographical scope