SESSION 1:Background and Scope for Building Envelope Dr. Yamina SAHEB, International Energy Agency

1. Background and scope of
the building envelope
Yamina SAHEB
Yamina.saheb@iea.org
© OECD/IEA 2011

2. Buildings sector share of the total final
energy consumption
16 000
Mtoe
Other
14 000 Buildings
12 000 Transport
Industry
10 000
8 000
6 000
4 000
2 000
0
2007 Baseline 2030 Baseline 2050 BLUE Map 2050
© OECD/IEA 2011

3. Background
 Buildings are complex systems
 Holistic approach for the envelope
 Policy package
 Regulatory instruments (codes and MEPs) and their
enforcement
 Labels and certificates and their enforcement
 Economic instruments (financial, tax, market based
instruments and direct investments)
 Efficient technologies for the envelope
 Envelope
 Insulation for walls and roofs
 Efficient windows
 Cool roofs for hot climates
 What else?
 HVAC equipment and appliances (excluded)
© OECD/IEA 2011

4. Building Types
 Residential (new and existing ones?)
 Single family residential
 Multi-family residential
 Other residential (mobile homes…???0
 Non-residential (new and existing ones?)
 Office building
 Hotel
 Education building
 Public assembly (community centres, meeting halls..)
 Health care
 Mercantile & Service
 Institutional lodging (retirement homes…)
 Other non-residential (factories,…????)
© OECD/IEA 2011

5. Energy perspective
 Energy consumption in operation phase only?
 Embodied energy?
 Which end-uses to include in the energy
balance?
 Heating and cooling only?
 Lighting?
 Ventilation?
 Other end-uses to include?
 Other criteria and impacts to consider?
© OECD/IEA 2011

6. Key questions to answer by the end of
the workshop
 Which policy packages are the most effective in
terms of energy savings?
New and existing buildings
Different building types
Regional differences?
Can we prioritize policies and how?
Main barriers and how to overcome them?
International collaboration?
© OECD/IEA 2011

7. Key questions to answer by the end of
the workshop
 What are the most efficient technologies
New and existing buildings
Different building types
Regional differences?
Cost effectiveness?
Barriers to efficient technologies deployment
International collaboration
 Is there a timing issue?
 2 separate publications; one on policies and one
on technologies or one single publication on
building envelope? © OECD/IEA 2011