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Achieving the cost-effective energy transformation of Europe's buildings

This report aims to answer the following question: Which are the most cost-effective ways to decarbonise the existing EU building sector through energy renovations? Replying this, we provide a method and a dataset to investigate the cost-optimal level of energy efficiency measures in combination with low carbon heating and cooling solutions. To showcase the application of the method, two EU Member States (Germany and Greece) are examined and targeted renovation solutions are discussed as examples.

Key data and information at a glance (click on images for larger version): 

Mean U-value of the building's envelope elements (roof, floor, wall and window) calculated as a weighted average per surface area of each element for two subsets (built before and after the 1970s) of the national building stocks

Graph title/legend: 

Mean U-value of the building's envelope elements (roof, floor, wall and window) calculated as a weighted average per surface area of each element for two subsets (built before and after the 1970s) of the national building stocks