Risk mitigation in decarbonization of urban heating networks through grid temperature reductions and flexibility use

Solutions developed

The goal of the DeRiskDH project is to solve the challenges associated with the integration of alternative heat sources. These lie in particular in the optimization of the building stock in terms of return temperatures and flexibilities, in grid hydraulics, bidirectional operation, the integration of seasonal storage, and the inclusion of consumers and business models. The aim is also to minimize the associated high investment costs and uncertainties regarding energy prices, the availability of alternative heat sources and seasonal storage, and the implementation of retrofitting and optimization measures.

Main results

DeRiskDH develops and tests innovative solutions and business models for district heating operators and building owners across five cities: - Vienna: Innovates control algorithms in a secondary heat network with local waste heat. - Graz: Lowers district heating temperatures to optimize heat pump performance. - Linz: Develops a "Quick Assessment Tool" for building service optimization. - Salzburg: Conducts district heating network hydraulics assessment for decarbonization. - Klagenfurt: Activates building flexibilization, power-to-heat, and heat pump integration to reduce peak loads.