IEA EBC Annex 75 - Cost-effective Building Renovation at District Level Combining Energy Efficiency & Renewables

Buildings are a major source of greenhouse gas emissions and cost-effectively reducing their energy use and associated emissions is particularly challenging for the existing building stock, mainly because of the existence of many architectural and technical hurdles. The transformation of existing buildings into low-emission and low-energy buildings is particularly challenging in cities, where many buildings continue to rely too much on heat supply by fossil fuels.




Annex 75 final reports are published!

The final reports of Annex 75 are now available on our website, including a Guide for Policy and Decision-Makers and two short versions aimed at each target group, containing a summary of the main recommendations. Please find them under 'Publications'.


Annex 75 webinar

A final webinar will be held on October 10, 2023, from 11:00 to 12:15 CEST.

The main findings and recommendations from the IEA EBC Annex 75 project will be presented, showing the potential of district approaches for cost-effectively decarbonising the building sector.

Click here to see the agenda and register.

Annex Info & Contact

Status: Completed (2017 - 2023)

Operating Agent

Manuela Almeida
Department of Civil Engineering
University of Minho
Campus de Azurém
4800-058 Guimarães

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