District Heating and Cooling including Combined Heat and Power (IEA DHC/CHP)
District heating and cooling systems are important elements of the Austrian energy system. Currently above 2,000 heating network exist in Austria. Every fourth apartment is heated with district heating - showing an upward trend, especially in urban centers. Besides the large cities Vienna, Graz, Linz, Salzburg, St. Pölten, Klagenfurt, Wels etc., many rural, biomass based heating networks exists.
Currently, the heating sector is facing significant challenges. The increasing effectiveness of retrofitting measures in the building sector are resulting in a decreasing room heating demand. Due to the reducing heat sales and the cost structure of the energy carriers in combination with unsecure energy prices, the historic infrastructures are getting uneconomic.
As a result, heating networks needs to be further developed by making them more flexible and intelligent. The challenges to heating networks are related to the integration of energy from various sources at different temperature levels, including surplus heat that is currently not used.
The work programme of the DHC/CHP TCP is mostly conducted through cost-shared activities. Here, different project are contracted within the runtime of a muliti-year Annex.
Institutions of the participating countries can apply for this projects. In the working phase 2017-2019 (Annex XII), following projects are funded (see also Annex XII on The IEA DHC/CHP Website):
- Effects of Loads on Asset Management of the 4th Generation District Heating Networks
- MEMPHIS - Methodology to evaluate and map the potential of waste heat from industry, service sector and sewage water by using internationally available open data
- Integrated Cost-effective Large-scale Thermal Energy Storage for Smart District Heating and Cooling
- Stepwise transition strategy and impact assessment for future district heating systems
Since 2012 task-shared Annexes were initiated, beginning with Annex TS1: "Low Temperature District Heating for Future Energy Systems". The Annex TS1 was completed end of 2017.
Currently, two further tasks shared Annexes are running (TS2 und TS3), both with participation from Austria.
Within the Annex XII, following projects are running with an participation from Austria:
MEMPHIS - Methodology to evaluate and map the potential of waste heat from industry, service sector and sewage water by using internationally available open data
- Type: cost-share
- Runtime: 2017 - 2019
- MEMPHIS on the IEA DHC/CHP Website
- MEMPHIS on the HAWK Website
- Type: task-share
- Runtime: 2017 - 2020
- Annex TS2 on the IEA DHC/CHP Website
Annex TS3 - Hybrid Energy Networks: District heating and cooling networks in an integrated energy system context
- Type: task-share
- Runtime: 2017 - 2021
- Annex TS3 on the IEA DHC/CHP Website
- Runtime: 2020 - 2024
- Annex TS4 on the IEA DHC/CHP Website
All past publications (Annex I – XI) are available on the IEA DHC-CHP website. A registration is required for downloading the reports. The most recent publication is the guidebook from Annex TS1 on low temperature district heating.
IEA DHC: MEMPHIS - Evaluate and map the potential of waste heat from industry (Roman Geyer)
District Heating and Cooling including Combined Heat and Power (Michael Hübner)
Austria, Canada, Denmark, France, Germany, Finland, Republic of Korea, Norway, Sweden, the United Kingdom and the United States
Austrian Federal Ministry for Climate Action, Environment, Energy, Mobility, Innovation and Technology
Abteilung Energie- und Umwelttechnologien
Tel.: +43 (1) 71162 / 65 2922
Mobile: +43 (664) 88415899
Dr. Ralf Roman Schmidt
AIT Austrian Institute of Technology GmbH
Tel.: +43 (0) 50550-6695
Mobile: +43 (664) 235 19 01