AEGIR Demo-led Replication Workshop Series (DWS):
DWS 1&2 - France & Spain
The AEGIR project is pleased to announce its Demo-led Replication Workshop Series (DWS), bringing together architects, engineers, building owners, policymakers and researchers to explore how industrialised deep-energy renovation can be scaled across Europe.
The webinar featured examples from demonstration sites in France and Spain, showcasing different approaches to industrialised deep-energy renovation in existing buildings. The solutions presented span digital twin (BIM) workflows, façade retrofit technologies, and energy system upgrades, with a strong focus on scalable and replicable renovation pathways across Europe. These approaches aim to accelerate building decarbonisation while also delivering co-benefits such as improved indoor comfort, reduced energy costs, and enhanced living conditions for occupants. We greatly appreciate your engagement and contributions during the session.
The first session (DWS 1&2) took place on 16 April, 2026, 14:00-15:00 CEST, and will spotlighted two of AEGIR’s four demonstration sites: a primary school in Malgrat de Mar, Catalonia (Spain), and a residential building for elderly residents in Boën-sur-Lignon, Loire (France). Both buildings are undergoing a comprehensive retrofit using AEGIR’s prefabricated modular façade system, which integrates advanced thermal insulation, photovoltaic panels and smart ventilation to achieve a total of at least 60% energy savings.
In addition, IDP, a technical partner, presented how Building Information Modelling (BIM) and integrated digital workflows can support the planning phase, by enabling coordinated design, performance assessment, and a structured, replicable approach to renovation projects.
What makes AEGIR’s approach distinctive is its industrialised, off-site fabrication model. Standardised façade modules are manufactured away from the building site and installed rapidly, minimising disruption to occupants and dramatically reducing construction time. In France, this strategy has enabled a full renovation of an occupied elderly care building with zero displacement of residents, using a lightweight timber-based system with integrated building photovoltaics (BIPV) and second-life battery storage.
Webinar recording: DWS 1&2 - France & Spain
Background
About 85% of the EU’s building stock was constructed before 2001 and has low energy efficiency standards. Many still rely on fossil fuels for heating and cooling and require substantial amounts of energy to maintain comfortable indoor conditions. They are also among the most expensive to maintain, disproportionately affecting low-income households and contributing to energy poverty and poor living conditions.
85–95% of the buildings that exist today will still be standing in 2050; therefore, renovating them is key to reducing energy use and achieving climate neutrality by 2050.
In this context, the AEGIR project is developing fast, scalable renovation solutions to upgrade existing buildings efficiently and contribute to the Renovation Wave’s strategic goal of doubling annual energy renovation rates by 2030.
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