4RinEU: Robust and Reliable Technology Concepts and Business Models for Triggering Deep Renovation of Residential Buildings in EU

Abstract

Only 1.2% of the EU building stock is renovated every year, and the rate is even lower in case of deep renovation (i.e., savings exceed 60% compared to pre-renovation levels), since such interventions are often too expensive. To answer these challenges, 4RinEU will define robust, cost-effective, tailorable deep renovation technology packages supported by usable methodologies, feeding into reliable business models. The project will manage different stages of the deep renovation process, from the preliminary audit up to the component end-of-life, and will provide information on energy, comfort, users’ impact, and investment performance. The 4RinEU deep renovation strategy is based on 3 pillars: (i) technologies, to decrease net primary energy use (60 to 70% compared to pre-renovation), ant to reduce the life cycle costs over 30 years (15% compared to a typical renovation); (ii) methodologies to support the design and implementation of the technologies; (iii) business models to enhance the level of confidence of deep renovation investors.

Keywords

• deep renovation
• construction
• business models
• renewable energy sources
• building information modeling