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Solution based on decentralised heat pumps that are easy to install


HAPPENING project is developing a solution based on decentralised heat pumps that are easy to install, low-intrusive for the building´s occupants and easily adaptable to a large number of different building situations. This solution will be demonstrated in three pilot sites in Spain, Italy and Austria. 

The project will also develop near-zero planning, implementation and operation processes to facilitate the work during the planning phase, ensure a high-quality installation and effective operation, and reduce the efforts and costs within the whole retrofitting project. Additionally, new financial and business models will be rolled out to ensure cost competitiveness. 


  • To demonstrate a highly versatile, scalable and replicable solution package for buildings heating and DHW system retrofitting allowing 70% of renewable energy share. 
  • To develop near-zero planning, implementation and operation processes. 
  • To develop new financing and business models for building renovations. 
  • To unleash the full potential of the solutions developed through dedicated exploitation, dissemination and communication actions.


  • Development of a smart energy management system.
  • Development of a samrt monitoring and control architecture and integration in the pilot sites. 
  • Performance evaluation based on monitoring data. 
  • Techno-economic assessment of the solution based on descentralized heat pumps. 
  • Preparation of system desgin guidelines, technical manuals and instructions for installers and end users. 

Expected Results

  • A systemic package of technologies based on decentralized heat pumps.
  • Sustainable retrofit planning, installation and operation processes.
  • Financial instruments based on the development of realistic business models, being them the pillar of the project. 



Grant Agreement 957007

Total Budget: 2,886,849.63 €
EC Contribution : 2,499,669.63 €
Duration: 01/10/2020 – 31/03/2024

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Alberto Belda González

Energy Division


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