The global goal of zero net emissions by 2050 requires improvements in energy efficiency, electrification of end users and increased 
penetration of renewable energy generation. The intermittency of renewable energy and the increasing use of distributed energy 
resources put additional pressure on existing grids. In this scenario, the building sector becomes a critical element in overcoming 
current challenges. With the ability to produce, consume, store, sell and buy energy, buildings become active participants in the 
buildings-to-grid ecosystem. 
FLEXeON aims to enhance energy flexibility of buildings though the development of advanced digital technologies, including 
sensors, controls, and intelligent analytics, enabling the transformation of the building sector into efficient, grid-interactive buildings 
to provide flexibility services. 
FLEXeON is designed to cover the entire value chain of the B2G ecosystem. The consortium includes a good representation of 
research institutions, electricity market operators, industry, SMEs and standardisation bodies to maximise the impact of the project 
results. The flexibility solutions developed in the FLEXeON project will be demonstrated in 4 different ecosystems covering 4 
countries (i.e. Spain, Finland, Croatia and the Czech Republic) with different electricity markets, climate zones, building typologies and 
national contexts. 
The four national ecosystems will also involve key players and experts from the grid and building perspective to ensure identification 
of specific market needs. This approach has already started at the proposal stage with a good representation of stakeholders such as 
Distribution System Operators, Electricity Trading Companies, National Energy Agencies and Ministries. The value chain covered by 
FLEXeON includes (i) methodologies and assessment tools to evaluate the flexibility potential of buildings according to the technical 
building systems, (ii) definition of the interoperability framework and its requ