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Strategies to overcome the dilemma in renovating and integrating HPs and RE into the building stock.

Number: 0651

Author(s) : OCHS F., TOSATTO A., MAGNI M., VENTURI E. , MONTELEONE W., DERMENTZIS G.

Summary

Considering the overall limited availability of renewable electricity and (district) heat together with the competing demand by industry and transport, deep thermal renovation (TR) of buildings and a rapid phase out of fossil-based heating systems is crucial to achieve the overall climate targets. Independent of the actual choice of the path to the required phase-out of fossils, it will lead to significantly increasing shares of renewables (RE) in the electricity system. This increasing share of RE will lead to a significant reduction of the CO2 conversion factor for electricity. This will also relevantly influence the CO2 conversion factor of DH, when, as anticipated to a large extent central large-scale HPs are involved. The dilemma is that in such a scenario, with proceeding time, the deep TR of buildings and the further integration of onsite PV (coupled to HPs) will not any more influence the CO2 emissions of the building in a relevant way. This would lead to a decreasing motivation to implement high ambition targets on building level. However, high ambition levels will be required to reach the overall goal of the phase-out of fossil energy. This requires an energy policy approach instead of market incentives, i.e. CO2 tax will not sufficiently trigger the required transition process but instead CO2 budgets have to be defined.

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Pages: 12 p.

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Details

  • Original title: Strategies to overcome the dilemma in renovating and integrating HPs and RE into the building stock.
  • Record ID : 30033469
  • Languages: English
  • Subject: Environment
  • Source: 14th IEA Heat Pump Conference 2023, Chicago, Illinois.
  • Publication date: 2023/05

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