Urban Sustainability: Recovering and Utilizing Urban Excess Heat

Urban heat sources from urban infrastructure and buildings could meet ~10% of the European building heating demand. There is, however, limited information on how to use them. The EU project ReUseHeat has generated much of the existing knowledge on urban waste heat recovery implementation. Heat recov...

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Main Authors: Kristina Lygnerud, Sarka Langer
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/15/24/9466
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author Kristina Lygnerud
Sarka Langer
author_facet Kristina Lygnerud
Sarka Langer
author_sort Kristina Lygnerud
collection DOAJ
description Urban heat sources from urban infrastructure and buildings could meet ~10% of the European building heating demand. There is, however, limited information on how to use them. The EU project ReUseHeat has generated much of the existing knowledge on urban waste heat recovery implementation. Heat recovery from a data center, hospital and from water were demonstrated. Additionally, the project generated knowledge of stakeholders, risk profile, bankability and business models. The recovery of urban waste heat is characterized by high potential, high competitiveness compared to other heating alternatives, high avoidance of GHG emissions, payback within three years and low utilization. These characteristics reveal that barriers for increased utilization exist. The barriers are not technical. Instead, the absence of a waste heat EU level policy adds risk. Other showstoppers are low knowledge on the urban waste heat opportunity and new stakeholder relationships being needed for successful recovery. By combining key results and lessons learned from the project this article outlines the frontier of urban waste heat recovery research and practice in 2022.
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spelling doaj.art-44ee9a8d5676438398a807ce0861bec72023-11-24T14:37:25ZengMDPI AGEnergies1996-10732022-12-011524946610.3390/en15249466Urban Sustainability: Recovering and Utilizing Urban Excess HeatKristina Lygnerud0Sarka Langer1IVL Swedish Environmental Research Institute, SE-400 14 Göteborg, SwedenIVL Swedish Environmental Research Institute, SE-400 14 Göteborg, SwedenUrban heat sources from urban infrastructure and buildings could meet ~10% of the European building heating demand. There is, however, limited information on how to use them. The EU project ReUseHeat has generated much of the existing knowledge on urban waste heat recovery implementation. Heat recovery from a data center, hospital and from water were demonstrated. Additionally, the project generated knowledge of stakeholders, risk profile, bankability and business models. The recovery of urban waste heat is characterized by high potential, high competitiveness compared to other heating alternatives, high avoidance of GHG emissions, payback within three years and low utilization. These characteristics reveal that barriers for increased utilization exist. The barriers are not technical. Instead, the absence of a waste heat EU level policy adds risk. Other showstoppers are low knowledge on the urban waste heat opportunity and new stakeholder relationships being needed for successful recovery. By combining key results and lessons learned from the project this article outlines the frontier of urban waste heat recovery research and practice in 2022.https://www.mdpi.com/1996-1073/15/24/9466district heatingurban waste heatdemonstration sitesbusiness aspects
spellingShingle Kristina Lygnerud
Sarka Langer
Urban Sustainability: Recovering and Utilizing Urban Excess Heat
Energies
district heating
urban waste heat
demonstration sites
business aspects
title Urban Sustainability: Recovering and Utilizing Urban Excess Heat
title_full Urban Sustainability: Recovering and Utilizing Urban Excess Heat
title_fullStr Urban Sustainability: Recovering and Utilizing Urban Excess Heat
title_full_unstemmed Urban Sustainability: Recovering and Utilizing Urban Excess Heat
title_short Urban Sustainability: Recovering and Utilizing Urban Excess Heat
title_sort urban sustainability recovering and utilizing urban excess heat
topic district heating
urban waste heat
demonstration sites
business aspects
url https://www.mdpi.com/1996-1073/15/24/9466
work_keys_str_mv AT kristinalygnerud urbansustainabilityrecoveringandutilizingurbanexcessheat
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