The THERMOSS project is a response to the 20% primary energy consumption reduction targets set by the 2012 European Energy Efficiency Directive (EED). This calls for effective and wide-scale building heating and cooling systems upgrade strategies. Such strategies will only be successful if they are based upon the right combination of technology innovation and interventions, industrial commitment and building owners’ awareness. Hence, at the core of THERMOSS is an industry-focused, innovation-intensive approach to ease and foster the introduction of cutting-edge heating and cooling technologies for building energy retrofitting at European level, targeting residential buildings and buildings connected to heating and cooling networks.

The THERMOSS Project is developing, testing and deploying technology packages that optimise the use of fossil fuel and / or substitute fossil fuels with various kinds of renewable energy. THERMOSS technologies have been picked out from the catalogues of prominent European industrial players, Bosch, Veolia and Schneider Electric taking into account business profitability, energy efficiency and potential for large-scale deployment. The technologies will be tuned, combined and sized as part of the project thanks to dedicated academic and industrial input, tools development, to optimize their impact on energy efficiency in buildings.

THERMOSS advocates a geo-clustered approach to the definition of technology intervention packages, in order to increase the impact of the solutions with respect to specific climatic conditions and – when applicable – to specific national policies (e.g. fiscal incentives) and regulations. The THERMOSS packages and the platform will be thoroughly demonstrated in seven experimental and demonstration sites, covering all the built environment scales: residential buildings, district heating and cooling networks, in different climatic zones.

Thermoss Demonstration Sites

The THERMOSS Project targets residential buildings which have high energy consumption, a high share of natural gas use and low to medium penetration of renewable energies.   The demonstration sites vary across building type and climatic locations, including:

  1. Social housing tower building in Southampton, United Kingdom.
  2. Care home in Portsmouth, United Kingdom.
  3. Residential DH complex in San Sebastian, Spain.
  4. Residential houses in Northern Europe.
  5. Micro-DHC network at CEA INES, France.
  6. EPFL buildings, Switzerland.


THERMOSS is a multidisciplinary project funded by the European Union’s Horizon 2020 research and innovation program under grant agreement No 723562 ( ).