IEA Sessions and Workshops

Topical Sessions

TS 1
Title: High Temperature Cooling & Low Temperature Heating In Buildings.
Organised by: IEA EBC Annex 59: ”High Temperature Cooling & Low Temperature Heating In Buildings”.  

TS 2
Title: Business and Technical Concepts for Deep Energy Retrofit of Public Buildings
Organised by: IEA EBC Annex 61: “Business and Technical Concepts for Deep Energy Retrofit of Public Buildings”

TS 4
Title: High integration of renewable sources in community energy supply utilising low exergy systems
Organised by: IEA EBC Annex 64: “Optimised Performance of Community Energy Supply Systems with Exergy Principles – LowEx Communities”


1) Optimising Community Energy Supply with Exergy Principles. Dietrich Schmidt, Fraunhofer IBP/GER.

2) Addressing different approaches for evaluating Low-Exergy Commuities. Sabine Jansen, DTU/NL and Forrest Meggers, Princeton/USA,

3) Energy and exergy analyses of Bjerringbro low-temperature district heating area. Klaus Lund Nielsen, DTU/DK.

4) Renewable Low-Temperature District Heating of a New Housing Area in Kassel, Germany – A Case Study of IEA. Janybek Orozaliev, University of Kassel/GER

5) Assessment and methods for optimised community supply based on exergy principles. Ivo Martinac, KTH – The Royal Institute of Technology / SWE

6) Methodology for the assessment of temperature reduction potentials in district heating networks by demand side measures and cascading solutions. Ralf-Roman Schmidt, Austrian Institute of Technology / AT

7) Simulation and exergetic analysis of renewable multi-generation units for a building group. Anna Kallert, Fraunhofer IBP/GER

TS 5
Title: Energy Flexible Buildings
Organised by: IEA EBC Annex 67: ”Energy Flexible Buildings”

TS 6
Title: A fossil free building stock realized based on low temperature district heating!
Organised by: IEA DHC Annex TS1: “Low Temperature District Heating for Future Energy Systems”


1) Successful Implementation of Low Temperature Heating Systems in Communities. Dr. Dietrich Schmidt, Fraunhofer IBP, Germany.

2) Technologies for supply of heating and hot water to buildings based on low temperature district heating. Prof. Svend Svendsen, DTU, Denmark.

3) Building solutions for low temperature heat supply. Oddgeir Gudmundsson, DANFOSS, Denmark.

4) Technical, ecological and environmental Evaluation of different district heat supply and space heating concepts. Dr. Markus Blesl, University of Stuttgart, Germany.

5) Improved interfaces for enabling integration of low temperature and distributed heat sources – requirements and examples. Prof. Natasa

TS 7
Title: Heat pump application in nearly Zero Energy Buildings
Organised by: IEA HPT Annex 40: “Heat pump concepts for nearly Zero Energy Buildings”


1.   Introduction to heat pumps in nZEB and contributions to IEA HPT Annex 40, Prof. Carsten Wemhoener, IET, HSR UAS Rapperswil, Switzerland (paper 525)

2.   Heat Pump for nZEB in Canada – System Assessment and Technology Developments, Roberto Sunyé, Ph. D., CANMET Energy, Canada

3.   Energy and Efficiency Analysis of Heat Pump Systems in Non-residential Buildings by means of Long-Term Measurements, Dr. Doreen Kalz, Fraunhofer Institute of Solar Energy systems,  Germany

4.   Heat pumps in energy and cost efficient nearly zero energy buildings in Finland, Prof. Risto Kosonen, Aalto University, Finland

5.   Policies and practices towards nZEB in Japan,  Prof. Dr. Masaya Okumiya, Nagoya University, Japan

6.   The definition of nearly Zero Energy Buildings in the Swedish building code and its implications on heat pumps, Ola Gustafsson, SP, Sweden

7.   Results from IEA HPT Annex 40 on heat pump application in nearly Zero Energy Buildings. Carsten Wemhoener, Raphael Schweizer, Roman Schwarz. Switzerland.


WS 12
Title: Building and ductwork airtightness: what has changed in the past 5 years, what is likely to change in the next 5 years?
Organised by: TightVent, IEA EBC Annex 5: ”AIVC”, QUALICHeCK

WS 15
Title: Perspectives for assessing ventilative cooling potential in Energy Performance regulations 
Organised by: venticool, IEA EBC Annex 62, IEA EBC Annex 5: “AIVC”, QUALICHeCK

WS 22
Title: Agenda for Ventilation and Air Infiltration 2020 and beyond: knowledge gaps, research priorities and the need for innovation
Organised by: IEA EBC Annex 5: “AIVC”

WS 26
Title: Energy Flexible Buildings
Organised by: IEA EBC Annex 67 and German project ”Netzreaktive Gebäude".

WS 28
Title: Cost-effective deep renovation of buildings
Organised by: EU H2020 MORE-CONNECT (, EU H2020 EE REFURB ( and IEA EBC Annex 56 (

WS 29
Title: Occupant Behavior
Organised by: IEA EBC Annex 66: ”Definition and Simulation of Occupant Behavior in Buildings”


  1. Behavioural models of building inhabitants: new approaches and quality assessment. Ardeshir Mahdavi, Department of Building Physics and Building Ecology, TU Wien, Austria.
  2. Experimental approaches for collecting occupant behavior data in the field and in the lab. Andreas Wagner, Karlsruhe Institute of Technology, Building Science Group.
  3. Application of behaviour models in BEPS and control. Rune Korsholm Andersen, International Centre for Indoor Environment and Energy, Technical University of Denmark, Department of Civil Engineering.

WS 30
Title: Integration of Energy Storage in Buildings and Districts for Demand Response and Renewable Integration.
Organised by: IEA ECES Annex 31: “Energy Storage with Energy Efficient Buildings and Districts: Optimization and Automation”. Task A: Modelling and optimisation of design and control of storage for demand response and renewable integration