INdustrialised and PErsonalised Renovation for Sustainable sOcieties

Project Information

INPERSO

Grant agreement ID: 101069820

DOI

10.3030/101069820

EC signature date 16 June 2022

Start date 1 July 2022

End date 31 July 2027

Funded under

• Climate, Energy and Mobility

Total cost

€ 9 227 196,25

EU contribution

€ 7 491 936,50

Coordinated by

INSTITUTO TECNOLOGICO DE ARAGON
Spain

Periodic Reporting for period 2 - INPERSO (INdustrialised and PErsonalised Renovation for Sustainable sOcieties)

Reporting period: 2024-01-01 to 2025-06-30

Summary of the context and overall objectives of the project

In the period we are living, efficient use of energy and reduction of carbon emissions are key factors in our fight to mitigate human impact in climate change and, as buildings account for 40% of final energy consumption and 36% of greenhouse gas emissions in Europe, the need of Zero Energy Buildings cannot be overlooked in this endeavour. Under the circular economy paradigm there is no doubt that we cannot afford the waste and raw materials impact of completely new constructions with this purpose, and, therefore, renovation of existing buildings looking for zero net energy consumption is essential. However, due to different barriers, current renovation works are not reaching the desirable number, hindering our transition into a green economy and society.
In this context, searching for a boost in the building renovation rates, INPERSO proposes innovative solutions flexible to adapt to the specific characteristics and needs of each building and user, and industrialised and digitalized processes to improve the retrofit works, reducing the time and disturbance.
To achieve this, the consortium is approaching building renovation from different perspectives: the retrofit KIT, digital processes, optimal energy use, and human-centric design.
The retrofit KIT is a set of solutions that can be combined in synergetic way: smart walls premanufactured that improve thermal and acoustic isolation and that can include heating or photovoltaics panels, windows with venetian blinds able to control light comfort and produce renewable energy; energy pods with smart control systems to minimise energy use in heating, ventilation and cooling; photovoltaic integrated panels aesthetic and adapted to different construction elements, and a façade 3D printing system to improve isolation and finishing of the building.
This kit comes together with digital tools using Building Information Models to support the renovation works, like scanning systems, augmented reality, and a cloud platform for information sharing.
With focus on the post renovation occupancy, the project will also test sensor networks and artificial intelligence to support the efficient energy use and improve the living comfort.
At last, INPERSO proposes a low carbon renovation model, involving residents, real state owners, construction companies, etc. in the design process trying to guarantee user satisfaction and sustainable behaviour.
As the project is targeting close to market solutions, all the developments and methodologies will be tested in real renovation works with very different characteristics: a multifamily building in Valencia (Spain), a heritage monastery in Velp (Netherlands), and a social shelter in Vouliagmeni (Greece).

Work performed from the beginning of the project to the end of the period covered by the report and main results achieved so far

During the second reporting period, the INPERSO project progressed from preparatory and design stages to the implementation, integration, and early validation of its core technological solutions. The complete set of components comprising the INPERSO Retrofit Kit—including SmartWalls, Solar Windows, Energy Pods, Building-Integrated Photovoltaics (BIPVs), and the 3D façade printing system—were finalised, prototyped, and prepared for deployment in the demonstration buildings.
The digital infrastructure also matured significantly. The RE-SUITE platform became fully operational, providing centralised access to renovation data, stakeholder collaboration tools, and real-time monitoring. Subsystems such as MuSECS and ECO-I were further developed and are currently being integrated into the platform, supporting key functionalities such as energy optimisation, occupant comfort evaluation, and health monitoring.
All three demo cases progressed along their respective implementation paths. DC#3 (Greece) finalised its renovation works and moved into post-intervention monitoring, serving as the first fully equipped pilot to validate the technological package under real-life conditions. DC#2 (Netherlands) initiated the physical integration of solutions while managing heritage constraints and coordination of final deliveries. DC#1 (Spain) concluded the design and procurement stages, and is now prepared to begin implementation.
Monitoring activities intensified across all sites, enabling baseline and operational data collection for both energy consumption and indoor environmental quality (IEQ). These efforts are aligned with the assessment of project Key Performance Indicators (KPIs) and Expected Outcomes (EOs). In particular, the project has already generated early evidence supporting outcomes such as increased renovation efficiency, integration of low-carbon materials and processes, and adaptability of the technological solutions to different building typologies.
The 3D printing robot underwent extensive validation, showing strong potential for reducing on-site disturbance, improving material efficiency, and supporting aesthetic and performance criteria. At the same time, installation and testing of BIPV elements and SmartWall systems demonstrated feasibility and alignment with energy and circularity-related outcomes.
Work performed in Period 2 has consolidated the developments and has allowed the launch of implementations in the democases. Initial validation of the solutions under operational conditions has been provided, and it has been established the foundation for the final evaluation of impacts and performance in the last reporting period.

Progress beyond the state of the art and expected potential impact (including the socio-economic impact and the wider societal implications of the project so far)

During the second reporting period, INPERSO has delivered a set of integrated results that clearly go beyond the current state of the art in the field of building renovation. These include:
- A modular and combinable Retrofit Kit, offering unprecedented flexibility to adapt to different buildings, climates, and user profiles. It includes SmartWall units with integrated insulation and services, BIPV systems compatible with complex façades and balconies, Solar Windows that combine energy generation and daylight control, and Energy Pods that centralise HVAC functions in compact, ready-to-install modules.
- A robotic façade 3D printing system specifically designed for renovation environments. Unlike existing systems, this solution operates in constrained construction sites, ensures safe human–robot collaboration, and supports subtractive and additive operations, significantly reducing labour and material waste.
- An advanced digital renovation ecosystem (RE-SUITE) that connects scanning, BIM-based design, collaborative decision-making, and monitoring. The system integrates real-time data from wireless sensor networks and enables AI-based optimisation of energy consumption and indoor environmental quality through tools like ECO-I and MuSECS.
- Human-centred renovation strategies that incorporate participatory design, comfort-driven energy optimisation, and behavioural nudging, all supported by real data and validated through post-occupancy evaluations in the demonstration cases.
These achievements position INPERSO technologies ahead of existing renovation practices in terms of technical performance, process integration, circularity, and user inclusion.