CORE – Cost and resource optimal energy renovation

Sweden’s housing stock faces major challenges in reducing energy use and climate impact. At the same time, it’s difficult for property owners to know which renovation measures deliver the best results—both economically and environmentally.

The project “CORE – Cost and Resource Optimal Energy Renovation” aims to develop knowledge that helps owners of multi-dwelling buildings make smart decisions ahead of upcoming renovations.

By combining data from real buildings with advanced digital tools and simulations, the project analyzes different renovation options. It is carried out in close collaboration with eight housing companies from across Sweden, ensuring that the results are relevant and practical.

The goal is to identify measures that deliver significant energy savings and reduced climate impact at the lowest possible cost—considering different locations, energy systems, and conditions. The results will be widely shared and benefit housing companies, policymakers, and other stakeholders working toward a more sustainable building stock.

A reference group with representatives from Stenungsundshem, Ekeröbostäder, Gagnefbostäder, Gislavedshus, Härjegårdar, Svedalahem, Tibrobyggen and Bodenbo is associated with the project.