Contact

Contact
Organisation:
Austrian Energy Agency
Address: Mariahilfer Strasse 136, 1150 Vienna
Phone: +43 (0) 1 586 15 24 Fax: +43 (0) 1 586 15 24‐340
Contact: tabula‐event@energyagency.at
Project management:
Maria Amtmann – Austrian Energy Agency
maria.amtmann@energyagency.at
International project website:
www.building‐typologie.eu/event
All the presentations, information and pictures will be available online:
http://tabula‐event.energyagency.at
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Programme
09:00 Welcome
09:10 Block I: The European Housing Stock – Overview and Typological Assessment
09:10 Oliver Rapf – Buildings Performance Institute Europe (BPIE) – Belgium
”European Buildings under the Microscope“
09:45 Tobias Loga – Institute for Housing and Environment (IWU) – Germany
”National building typologies: basis for energy consultancy and building
stock models – the TABULA project“
10:25 Coffee break
10:55 Block II: TABULA Building Typologies in the Respective National Context –
Concepts and Application Fields
10:55 Elena Dascalaki – National Observatory of Athens (NOA) – Greece
”Building typologies as a tool for energy consultancy and housing stock
assessment – A case study for the Hellenic residential building stock“
11:15 Short presentations from Poland, Ireland, Slovenia, Italy, Czech Republic
National Building Typologies development in the framework of the TABULA
project – presentations by:
Malgorzata Popiołek – National Energy Conservation Agency (NAPE) – Poland
Michael Hanratty – Energy Action – Ireland
Marjana Sijanec Zavrl – Building and Civil Engineering Institute (ZRMK) –
Slovenia
Vincenzo Corrado – Politecnico di Torino (POLITO) / Department of Energetics
Tomáš Vimmr – STU‐K – Czech Republic
12:05 Nele Renders – Flemish Institute of Technological Research (VITO) – Belgium
”Realistic saving potentials? The correlation of calculated and actual
measured energy use“
12:20 Questions / discussion
12:30 Lunch break
13:30 Block III: Methodical Challenges – Information about National Housing
Stocks – EPC Database Analyses – Surveys
13:30 Manuel Casquiço – Agência para a Energia (ADENE) – Portugal
”Statistical information from the Portuguese EPC database “

13:50 Maria Amtmann – Austrian Energy Agency (AEA) – Austria
”Definition of average buildings – Statistical information from the Austrian
EPC database – Use for the building stock model Austria“
14:10 Kim B. Wittchen – Danish Building Research Institute (SBi) – Denmark
”Statistical information from the Danish EPC database ‐ Use for the building
stock model Denmark“
14:30 Nikolaus Diefenbach – Institute for Housing and Environment (IWU) –
Germany
”Data collection in the framework of a house owner survey – Input for the
building stock model Germany“
14:50 Questions / discussion
15:00 Coffee break
15:30 Block IV: Modelling Refurbishment Processes / Scenario Calculations
15:30 Gordon Sutherland – Executive Agency for Competitiveness & Innovation
(EACI) – European Commission
”EU Climate Protection Targets in the Building Sector – Policies and
Measures“
15:55 John Riley – Building Research Establishment (BRE) – United Kingdom
”Characterisation of dwellings in the UK – determining the potential for
enhanced energy efficiency“
16:20 Niko Heeren – ETH Zürich / Institut für Bau‐ und Infrastrukturmanagement –
Switzerland
”Component‐based building stock model for testing the targets of the Swiss
2000 Watt society“
16:45 Lukas Kranzl – Technische Universität Wien – Austria
”Modelling the impact of energy policies in the building sector“
17:10 Questions / discussion
17:20 Tobias Loga – Institute for Housing and Environment (IWU) – Germany
Closing words: Monitoring of national housing stocks: current state,
challenges, perspectives
17:30 Dinner

Workshop Guide
09:00 Welcome
09:10 Block I: The European Housing Stock – Overview and Typological Assessment
09:10 Oliver Rapf – Buildings Performance Institute Europe (BPIE) – Belgium
”European Buildings under the Microscope“
Buildings present one of the highest energy saving potentials. Improving energy efficiency of
buildings can substantially contribute to Europe’s 2020 strategy and 2050 roadmap targets. The
transformation of the existing building stock is a complex process requiring an understanding on the
current status of the building stock. Based on an extensive survey carried out across the EU, BPIE
shows that significant efforts are required to close current data gaps and harmonize monitoring,
reporting and evaluation. The data collected is used in a model which develops renovation scenarios
assuming different renovation depth and speed pathways and achieve the same overall target: to
renovate all the existing stock by 2050.
Oliver Rapf is the Executive Director of The Buildings Performance Institute Europe
(BPIE).
Before joining BPIE, Oliver Rapf was Head of the Climate Business Engagement
unit of WWF International, managing strategy and partnership development with
the private sector. Leading an international team, he advised multinational
companies on climate change.
Oliver’s experience in buildings efficiency goes back to the late 1990s when he was
a project leader for several deep renovation projects on behalf of WWF in
cooperation with housing companies across Germany. Other roles include the
position of deputy Head of WWF’s European Climate Change and Energy Policy
Unit. Oliver participated in UNFCCC negotiations and was the leader of the
German NGO coalition at international climate change negotiations.
09:45 Tobias Loga – Institute for Housing and Environment (IWU) – Germany
”National building typologies: basis for energy consultancy and building stock
models – the TABULA project“
A national building typology on the basis of the TABULA concept provides a basis for energy
consultancy and for building stock models. It is created by classifying the building portfolio according
to certain energy‐related parameters and assigning an example building to each building type. A
further step is the creation of "average buildings" as representatives, on condition that the necessary
statistical information is available. A common reference calculation procedure facilitates the cross‐
border exchange of information about the energy performance of typical buildings and particular
refurbishment strategies.
10:25 Coffee break
1989 to 1991 energy consultancy in an architectural office; since 1992 scientist at
IWU – Institut Wohnen und Umwelt GmbH (Institute for Housing and
Environment), Darmstadt, Germany. The fields of expertise of Tobias Loga are:
design of energy efficient buildings, development of tools for calculating energy
balances and for energy advice, concepts and implementation of energy
performance certificates, simplifications for energy performance calculations,
building typologies.

10:55 Block II: TABULA Building Typologies in the respective National Context – Concepts
and Application Fields
10:55 Elena Dascalaki – National Observatory of Athens (NOA) – Greece
”Building typologies as a tool for energy consultancy and housing stock
assessment – A case study for the Hellenic residential building stock“
The TABULA classification of residential buildings in Greece is based on the age and size of the
buildings and the climatic variability in the country. This presentation gives an overview of the
Hellenic building typology and some results from its application as a tool to get an insight of the
national residential building stock assessing typical and advanced energy conservation measures in
an effort to meet the 9% indicative national energy savings target by 2016.
Dr. Elena Dascalaki, Building Physicist, Senior Researcher at NOA/IERSD since 2006
and research assistant with GREC since 2001. Active in the areas of building physics
– thermal performance of buildings and energy conservation, thermal building
simulations, CFD building applications, numerical analysis, natural ventilation,
building energy audits. Leading researcher in various European and National
Research Programmes. National representative in the Annex 35 technical
committee of the International Energy Agency working on Hybrid Ventilation.
Author and co‐author of 33 papers in international and national journals, 6 books
and chapter contributions in scientific books on energy conservation and RES,
56 papers for conferences, 10 scientific publications and 26 technical reports.
Professional Activities: Member of the Board of Directors of the Centre for
Renewable Energy Sources – CRES (2010‐today), Hellenic Physics Association.
11:15 Short presentations from Poland, Ireland, Slovenia, Italy, Czech Republic
National Building Typologies development in the framework of the TABULA project
– presentations by:
Malgorzata Popiołek – National Energy Conservation Agency (NAPE) – Poland
Polish building typology will be presented, including final building matrix, approved construction
periods and building types. The sources of data, accepted modernisation measures, as well as final
brochure will be also a subject of the lecture.
From 1999 Project Manager in National Energy Conservation Agency. Member of
the Board of the Energy Conservation Foundation. Expert in the field of renewable
energy and energy efficiency in buildings. Lecturer for courses for energy auditors
and energy experts as well as for post‐graduate studies at the Warsaw University of
Technology. Certified Energy Manager issued by American Engineering Association.
Coordinator of several European projects such as DEMOHOUSE, Green City
Building, DATAMINE, BEST RESULT and PROMOTION3e. Author of articles in
professional magazines (“Energy and buildings”, “ How to save energy”, “Eko‐
partner”) and co‐author of a handbook for energy auditors.

11:25 Michael Hanratty – Energy Action – Ireland
Ireland’s National Energy Efficiency Action Plan (NEEAP) 2009–2020 set a challenging target of
delivering 20% energy savings by 2020 across all sectors. It is estimated that 1 million building
upgrades are required across the residential, commercial and public sectors. Significant retrofit
programmes are underway in Ireland on the residential housing stock in particular. The Irish
conference presentation will indicate how the TABULA project is relevant to and is contributing to
existing and future retrofit programmes in Ireland.
He has been engaged by Energy Action as an in‐house consultant since 2003
working on the IEE projects Datamine (2005–2008) and TABULA (2009–2012).
He is also Managing Director of IHER Energy Services, a building energy
consultancy company formed in 2007 in partnership with Energy Action.
IHER focuses on energy‐related training, energy surveying and research work.
Michael is an electrical engineer and previously worked for the main electrical
utility in Ireland for 20 years up to 2002, laterally in the energy efficiency field.
11:35 Marjana Sijanec Zavrl – Building and Civil Engineering Institute (ZRMK) – Slovenia
Early attempts to assemble Slovenian building typology have been made in the past with only two
size types (single family houses and apartment building) and without the contribution of building
systems. TABULA approach brought a new concept to the building typology. By defining typology
subtypes it was possible to describe buildings not only in their original state but also in present
modernized state, thus enabling us to model national energy balance and saving scenarios. Based on
this typology, a new TABULA‐based software for quick energy saving calculations for residential
buildings was developed.
Marjana Sijanec Zavrl, Head of Centre for Indoor Environment, Building
Physics and Energy. She has 27 years of professional experience in building
physics, energy efficiency in buildings, sustainable and energy efficiency
renovation of existing buildings. She drafted EPBD‐based technical regulation
on energy efficiency in buildings, mainly calculation methodology, minimum
requirements and energy certification and labelling of buildings. Special focus
of her interest is also monitoring of microclimate in heritage buildings,
preventive restoration measures for heritage, environmental assessment of
buildings, LCA, LCC in buildings and sustainable building. Since 1997 she has
also been employed as a researcher at University in Ljubljana, Faculty for Civil Engineering and Geodesy.
Recently, she has been involved in many EU projects from EIE, FP6, FP7, Eureka and COST programmes.
11:45 Vincenzo Corrado – Politecnico di Torino (POLITO) / Department of Energetics
The lecture presents the Italian building typology and the criteria of definition of representative
building types according to TABULA common methodology. Both statistical analysis and experience
have been used to develop the Building Typology Matrix. Typical constructions and systems are
presented considering different construction ages. Standard and advanced refurbishment measures
applied to the different building types have been assessed through energy performance calculation
carried out according to European and national technical standards. The energy saving potential of
the residential building stock is presented, determined with the support of statistical data.

Civil engineer, associate professor of “Building Physics and Building Services”
at Politecnico di Torino. Author of more than 160 publications. Researcher
and consultant in the fields of energy efficiency, building physics and
environmental comfort. President of IBPSA‐Italy, Italian regional affiliate of
IBPSA (International Building Performance Simulation Association) and
member of the Board of IBPSA‐World. President of the Foundation of the
Order of engineers of the province of Torino. Coordinator of WG 102 (Thermal
insulation of buildings – Calculation and test methods) of the Italian Thermo‐
technical Committee and Italian delegate of CEN TC89. Member of the
working group of the Ministry of Productive Activities for the implementation of EPBD. Italian member of the
following European R&D projects: SEMANCO, TABULA, DATAMINE. Responsible for many national and regional
R&D projects on energy and environmental performance of buildings.
11:55 Tomáš Vimmr – STU‐K – Czech Republic
There has not been any specific approach recognized recently at the national level that could be used
to evaluate the energy performance of large groups of buildings. Czech national building typology has
been developed in the framework of TABULA project. Relevant datasets were included in TABULA
tool offering multiple scenarios and facilitating the strategic asset management. This lecture gives an
overview of typical features of the Czech housing stock and shows examples of applications of
TABULA methodology in the Czech national context.
Tomáš Vimmr, 1990–1991 Post‐graduate courses in design of reinforced concrete
and prestressed concrete structures, Centre des Hautes Etudes de la Construction
(CHEC), Paris; 1980– 1984 Building engineer, CVUT – Czech Technical University of
Prague; Member of the board of directors and technical director of private
consulting firm STU‐K. Senior consultant. Active participant in several IEE projects
(SUREURO, ESAM, SUREFIT, ENPIRE, TABULA, AFTER) and ICT PSP
Competitiveness and Innovation European project (BECA). Involved in several
refurbishment projects of large panel buildings in the Czech housing sector and in
urban restructuring projects. Experienced in technical assessments, site
supervisions and technical inspections on building sites. Recently specialised in
energy performance‐related issues with special focus on housing maintenance
and renovation projects. Active participation in several national conferences on
sustainable housing renovations and energy efficiency in the residential sector.
12:05 Nele Renders – Flemish Institute of Technological Research (VITO) – Belgium
”Realistic saving potentials? The correlation of calculated and actual measured
energy use“
The correlation of calculated and actual measured energy use: evaluation of an energy advice and
consequences for building stock assessment. The theoretical energy consumption tends to be much
higher than the actual energy use due to occupant behaviour, especially for older buildings. In order
to present realistic energy savings, we add a correction factor to the theoretical energy estimations.
These correction factors are derived from statistical analysis of the Energy Advice Procedure
databases of Belgian dwellings. We applied the factors in our two approaches to model the energy
use of dwellings, namely in the typical and the representative housing approach.

12:20 Questions / discussion
12:30 Lunch break
Nele Renders graduated in 2005 as Bio‐Engineer in the Environmental Technologies at
the Katholieke Universiteit Leuven. That year, she started working at VITO or the
Flemish Institute of Technological Research. She is involved in the estimation of the
energy and emission projections for different regional levels: federal, regional or city
level. In this context, she is responsible for the residential and service sector. Within
this scope, she developed the Flemish Environmental Costing Model for the building
sector. Moreover, in the European study “Assessment and improvement of
methodologies used for greenhouse gas projections“ she set up tiered guidelines for
the building sector. In addition to modeling, she evaluated the REU‐reports (Rational
Energy Use) of the Flemish administrators of the distribution network.
13:30 Block III: Methodical Challenges – Information about National Housing Stocks – EPC
Database Analyses – Surveys
13:30 Manuel Casquiço – Agência para a Energia (ADENE) – Portugal
”Statistical information from the Portuguese EPC database“
“Portuguese Certification System for Energy an Indoor Air Quality – Overview, Database Analysis and
Management”
Since 1 st of July 2007 more than 470 thousand energy performance certificates have been issued
under the Portuguese Certification System for Energy and Indoor Air Quality. All these EPC have to be
issued on a specific web platform developed for this purpose based on specific rules to assure the
quality of the data. The information contained in all EPC can be extracted in order to analyze the
Portuguese building stock, his thermal behavior and the recommendations proposed by the experts
to improve it.
Degree in Civil Engineering in 2001 and a specialization in management and business
strategy in 2006. Since 2001 projects and construction management for several
construction companies. 2007 he joined ADENE Building Department as an Auditor
checking the quality of the EPC issued by the qualified experts under the National
Certification System for Energy an Indoor Air Quality. Representative of ADENE in the
European project REQUEST and in the EnR Buildings Working Group.
13:50 Maria Amtmann – Austrian Energy Agency (AEA) – Austria
”Definition of average buildings – Statistical information from the Austrian EPC
database ‐ Use for the building stock model Austria“
The development of a building typology could be accomplished by combination of available data
information out of an EPC database, literature sources and national statistics. Average values taken
out of literature were used to select one typical building for each typology out of the EPC database.
As "representative" apply buildings which in terms of their U‐value, gross floor area, space heating
and domestic hot water systems represent average buildings. Thus, the 28 national model buildings
for the national brochure and the 140 model buildings for the webtool are finally represented by
real, existing “average” buildings.

Studies of Architecture and urbanism at the University of Technology in Graz,
Architecture School la Villette in Paris and Central University of Venezuela. Degree in
2007 and specialization in energy efficient building solutions in 2010. Since 2007
realization of architecture projects, researcher at the Austrian Energy Agency since
2010. Active in the fields of energy savings in buildings, assessment of building stocks,
low‐energy buildings, solar architecture, use of renewable energy systems in urban
environments. National project management of the European project TABULA and the
international project IEA SHC Task 41, Solar Energy and Architecture.
14:10 Kim B. Wittchen – Danish Building Research Institute (SBi) – Denmark
”Statistical information from the Danish EPC database ‐ Use for the building stock
model Denmark“
Information from the Danish Energy Performance (EP) Certificate data has been used in the
development of average building stock models in Denmark. There has been mandatory EP
certification in Denmark since 1997 for small residential houses, and data on the physical end
geometrical stage of the buildings have been collected in central databases. This information has,
together with information from the building stock register database, been analysed and used for
creation of average building typologies. Nine typical construction periods have been identified, based
on changes in building tradition and for the recent periods, changes in energy requirements.
Analyses of energy saving potentials in the existing building stock, based on data
extracted from the Danish Energy Performance Certification (EPC) scheme. The
analyses were made for the Danish Energy Agency and have been used in the
development of the government’s strategy for achieving a CO2 emission‐free society by
2050. Member of the management team for EU EPBD Concerted Action (CA) and co‐
core theme leader for “Certification procedures” in CAII and “Energy performance
requirements, using the cost‐optimum methodology” in CAIII. Participant in numerous
international projects, e.g. IEA SHC task 40 / ECBCS Annex 52 “Towards Net Zero Energy
Solar Buildings “; EPA‐ED & EPA‐NR “Energy Performance Assessment of residential and
non‐residential buildings”; REQUEST “REnovation through QUality supply chains and EPC Standards”.
Qualifications: Project management, Low energy buildings, Analyses of energy upgrading potentials for existing
buildings, Energy savings in buildings, Use of renewable energy systems in urban environments, Energy optimal
control strategies, Energy Regulations and Requirements, Demonstration projects, Measurements and
evaluation of building performance, Calculation and simulation of energy consumption and indoor
environment as well as simulation model development.
14:30 Nikolaus Diefenbach – Institute for Housing and Environment (IWU) – Germany
”Data collection in the framework of a house owner survey – Input for the building stock model
Germany“
During the TABULA project a model for analysing the energy consumption and energy saving
potentials of the German residential building sector was developed. A representative survey of house
owners carried out in an earlier project was used as an information source for the current state of
the building stock, inter alia the fraction of old buildings which have already been modernised.
He completed his studies of physics at RWTH Aachen in 1995 and received a PhD in
mechanical engineering at Ruhr‐Universität Bochum in 2002.
Since 2000 he is scientist at the Institut Wohnen und Umwelt (Institute for housing and
environment) in Darmstadt.
He works on energy saving concepts by thermal protection and efficient heat supply
systems and on the evaluation of climate protection politics in the building sector.

14:50 Questions / discussion
15:00 Coffee break
15:30 Block IV: Modelling Refurbishment Processes / Scenario Calculations
15:30 Gordon Sutherland – Executive Agency for Competitiveness & Innovation (EACI) –
European Commission
”EU Climate Protection Targets in the Building Sector – Policies and Measures“
An introduction will be given to the energy and climate targets of Europe 2020, the EU's growth
strategy for this decade. In a changing world, the EU needs to become a smart, sustainable and
inclusive economy. These three mutually reinforcing priorities should help the EU and the Member
States deliver high levels of employment, productivity and social cohesion. The climate/energy
targets are an integral part of that policy. Concrete actions and EU legislation at EU level underpin
the strategy and these will be presented.
Since 2010, Senior Project Officer of the Energy‐efficiency Unit of the European
Commission's Executive Agency for Competitiveness and Innovation (EACI), which
implements the EU's IEE Programme; 2006–2010, formerly Project Officer in the field
of Energy‐efficient Buildings in the same unit; 2002–2005, Supervising Mechanical
Engineer for the Olympic Village (Overlays) and Operations Site Manager of the Dekelia
Training Complex, Organising Committee of the Athens 2004 Olympic Games. 1989–
2001, variously at the Centre for Renewable Energy Sources (Passive Solar and Hybrid
Systems Programme), the University of Athens (Group Building Environmental
Studies), Trane Hellas Air‐Conditioning and Lennox Hellas Heating‐Cooling, in Greece,
and Torpy and Partners – Consulting Engineers, United Kingdom. M.Sc in Energy
Conservation and the Environment from Cranfield Institute of Technology, United
Kingdom (1988–1989). B. Eng. in Aeronautical Engineering, Glasgow University (1984–1988).
15:55 John Riley – Building Research Establishment (BRE) – United Kingdom
”Characterisation of dwellings in the UK – determining the potential for enhanced
energy efficiency“
The housing stock in England is among the oldest in Europe. Much of this is in poor condition with
low levels of energy efficiency. Characterisation of the English housing stock must consider the
dwelling condition, size, built form and presence of existing measures to allow the assessment of the
potential for improving energy efficiency. The comprehensive data from the English Housing Survey
allows the development of relevant typologies and quantify the likely effects of energy efficiency
improvements.
John joined BRE in 1998 to lead the energy efficiency modelling work for housing. He now
manages the Housing Stock Performance Group where he is responsible for energy
modelling, energy statistics, housing stock modelling and social research. John has over
20 years of experience in energy modelling for the UK domestic housing stock. He is
currently the BRE Project Manager for several contracts in the area of housing energy
efficiency and fuel poverty undertaken on behalf of the Department of Energy and
Climate Change (DECC) and other organisations.

16:20 Niko Heeren – ETH Zürich / Institut für Bau‐ und Infrastrukturmanagement –
Switzerland:
”Component‐based building stock model for testing the targets of the Swiss 2000
Watt society“
The building stock model of ETH Zurich and TEP Energy GmbH analyses the environmental impact of
building stocks. It is a component‐based bottom‐up model including the energy supply side of
buildings. It uses statistical data on surface distribution and retrofit activity of building envelopes.
Buildings with similar characteristics are clustered into cohorts. Model outputs are greenhouse gas
emissions and primary energy demand until 2050. So far, case studies for Switzerland and the city of
Zurich have been realized.
He studied “Environmental & Resource Management” and “ClimaDesign”.
Since 2008 he is working at the Chair of Sustainable Construction at the ETH Zurich
Switzerland.
His work focuses on environmental assessment of construction material and building
stocks. In the past he developed different bottom‐up models for several building stocks.
16:45 Lukas Kranzl ‐ Technische Universität Wien ‐ Austria
”Modelling the impact of energy policies in the building sector“
This presentation will discuss an approach for modeling energy policies in the building sector. This
will include: (1) structure and basic algorithms of the model Invert/EE‐Lab (Ernstl/EE‐Lab),
(2) disaggregated description of the building stock: level of disaggregation, types of buildings
distinguished, types of parameters, (4) selected scenarios and results (discussing the role of the
rebound effect), (5) open questions, next steps, in particular in the IEE‐project ENTRANZE (Policies to
enforce the transition to nearly zero energy buildings in the EU‐27).
17:10 Questions / discussion
He currently is working as a senior researcher at the Energy Economics Group. He
joined the Institute of Energy Economics in 1999. He holds a degree in industrial
economics and mechanical engineering and a Ph.D in energy economics at Vienna
University of Technology. His research activities are sustainable energy systems with a
focus on buildings, bioenergy, scenario development and optimisation of policy
instruments for renewable and efficient energy systems. In these areas Lukas Kranzl is
responsible for project acquisition, scientific coordination and research activities.
17:20 Tobias Loga – Institute for Housing and Environment (IWU) – Germany
Closing words: Monitoring of national housing stocks: current state, challenges,
perspectives
17:30 Common Dinner – Minoriten Front Hall

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