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Internationale Energieagentur (IEA)

IEA DHC Annex TS3: Hybrid Energy Networks

Hybrid energy networks, i.e. the integration of electricity, heat and gas networks, can make a decisive contribution to optimizing the energy system. The IEA DHC Annex TS3 analyses the potentials and challenges of hybrid energy networks from the perspective of the district heating / cooling system. This includes the analysis of relevant technologies and synergies, an assessment of the different methodological approaches and tools, the analysis of case studies as well as the development of suitable business models and regulations.

Internationale Energieagentur (IEA)

IEA DHC Annex TS4: Digitalisation of District Heating and Cooling

The aim of the IEA DHC Annex TS4 is to identify the possibilities of digitalization and the integration of digital process for district heating and cooling. To this end, the Annex TS4 establishes a platform for industrial and scientific experts to strengthen international cooperation and networking and the exchange of experience of national research and development activities.

Internationale Energieagentur (IEA)

IEA DHC Annex XIII Project 02: MEMPHIS 2.0 - Advanced algorithm for spatial identification, evaluation of temporal availability and economic assessment of waste heat sources and their local representation

The identification and integration of waste heat sources is a key measure towards the decarbonisation district heating networks (DHN). Aim of MEMPHIS 2 is to develop an improved algorithm for identification of different current and future waste heat sources; including time relations of the heat emitted and techno-economic details as well as the further development of the online waste heat explorer.

Internationale Energieagentur (IEA)

IEA DHC Annex XIII Project 07: CASCADE - A comprehensive toolbox for integrating low-temperature sub-networks in existing district heating networks

The majority of urban district heating networks operate at high temperatures, which are a barrier to the efficient integration of heat sources such as solar, geothermal, ambient or low temperature waste heat. CASCADE is investigating the integration of low-temperature networks into the return pipe of existing district heating networks, which will reduce return temperatures and thus improve efficiency and increase its capacity to connect new customers.

Internationale Energieagentur (IEA)

IEA DHC TS5 - Integration of Renewable Energy Sources into existing District Heating and Cooling Systems (RES DHC)

The expansion of sustainable district heating/cooling is an essential part of the Austrian heat transition. The transformation of these supply systems to fully renewable systems requires the combination of a multitude of aspects. The aim of the project is to compile a data and knowledge base from international projects in this context. Expertise and process know-how for the process of implementing the transformation of district heating and cooling systems will be collected and processed.

Internationale Energieagentur (IEA)

IEA District Heating and Cooling (DHC TCP)

The TCP on District Heating and Cooling (DHC) was founded in 1983. It deals with the design, performance and operation of DHC and Combined Heat and Power systems as powerful tools for energy conservation and the reduction of environmental impacts of supplying heat.

Internationale Energieagentur (IEA)

IEA-DHC Annex TS2: Implementation of Low Temperature District Heating Systems

The potential of alternative heat sources is highest at low system temperatures, but current district heating networks are usually high-temperature systems. The aim of the IEA DHC Annex TS2 is to support the transformation of district heating networks towards lower temperatures (the so-called 4th generation). For this purpose, Annex TS2 forms an international platform that enables an exchange on the topics of technology, system, demonstration and competitiveness.