Resources
Case studies
Technical and financial analysis of energy retrofit for a residential building
This case study explores how energy retrofitting — upgrading older buildings with better insulation, windows, and heating systems — can dramatically reduce energy use and costs. Access it here
Urban Mining & Building Retrofits: A Practical Guide for Circular Cities
This case study explores how urban mining can support sustainable building renovation and highlights practical steps cities can take to manage construction materials more efficiently. Access it here
County Westmeath Case Study Retrofitting Mullingar with Machine Learning Insights
This case study focuses on Mullingar (Ireland), where over 6,000 buildings were analysed to assess how retrofitting measures—such as improved insulation and heating systems—can reduce overall energy use. Access it here
Building Retrofits, Well-Being & Energy Poverty: A Simple Guide to a Complex Relationship
This case study explores how building energy retrofits—renovating homes to make them more energy efficient—can improve people’s well-being and reduce energy poverty. Access it here
Improving Home Energy Efficiency with a Simple Digital Tool
With rising energy costs and climate concerns, households are seeking ways to save energy. A team at Vytautas Magnus University developed a simple digital tool to help homeowners estimate potential energy and cost savings from upgrades like lighting, appliances, and insulation. This report presents the tool and key findings from its case study. Access it here
Innovative business models for supporting deep energy renovation of households
This case study explores three innovative financing schemes designed to make renovation more accessible: On-bill / On-tax financing Energy Performance Contracting (EPC / ESCO models) Green Debt instruments (green loans, mortgages, bonds). Access it here
Technical Perspective on Integrating Energy Retrofit and Renewable Energy in Buildings with a Solar Chimney
This case study explores how solar chimneys, energy retrofit measures, and thermal energy storage can be combined to improve the energy performance of buildings. Access it here
LCA of Prefabricated Nature-Based Façade Panels for NZEB Retrofitting
This case study examines how prefabricated façade panels made with nature-based materials can be used to deeply renovate an existing residential building and bring it close to a Nearly Zero Energy Building (NZEB) standard. The solution under assessment, SmartWall, is a modular plug-and-play façade system that can be added to existing buildings. Access it here
Evaluating building energy retrofitting strategies under uncertainty
This case study presents ERV – the Energy Renovation tool, a software developed within the Horizon Europe RenOnBill project to support the planning and evaluation of energy renovation projects in residential buildings. Access it here
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