Transcript Title (Verdana 32 pt)

Energy Efficiency made in Germany
The Export Energy Efficiency Initiative in
Germany
April 2nd, 2012 in Ljubljana, Slovenia
Antje Kramer
eclareon GmbH Management Consultants
on behalf of the Federal Ministry of Economics and Technology
www.efficiency-from-germany.info
Energy Efficiency made in Germany
On the Importance of Energy
Efficiency in Buildings
www.efficiency-from-germany.info
Final energy consumption in Germany 2010
Trade: 16 %
Industry: 28 %
Heating: 72 %
Households: 28 %
Transport: 28 %
Hot water: 13 %
Electric appliances and
lighting: 15 %
Source: dena, 2011
Share of energy consumption in households and
commercial buildings in Germany
75%
Households
Commercial Units
37%
33%
19%
13%
12%
11%
0%
Heating
Source: BDEW
Lighting
Hot Water
0%
Cooling
0%
Services
Energy Efficiency made in Germany
How to implement energy efficiency
in buildings?
www.efficiency-from-germany.info
Energy efficiency aspects in buildings
1. Geographical position
Source:
Brochure „Bauen für die Zukunft“, published by
German Energy Agency (dena)
1. Geographical position


Northward windows
 higher energy needs
Exposed position
 energy losses through
wind

Shadow
makes passive
use of solar
radiation
impossible
Source:
Brochure „Bauen für die Zukunft“, published by
German Energy Agency (dena)
Energy efficiency aspects in buildings
2. Type of building
1. Geographical position
Source:
Brochure „Bauen für die Zukunft“, published by
German Energy Agency (dena)
2. Type of building
Comparison of primary energy need of different types of (new) buildings
kwh/m² p.a.
Single-family
house
End-terrace house
Mid-terrace house
Source:
Brochure „Bauen für die Zukunft“, published by
German Energy Agency (dena)
Energy efficiency aspects in buildings
2. Type of building
1. Geographical position
3. Building materials
and insulation
Source:
Brochure „Bauen für die Zukunft“, published by
German Energy Agency (dena)
3. Building materials & thermal insulation
Ventilation 20%
Roof 30%
Walls 25%
Thermal bridge 5%
Windows 13%
Ground 7%
3. Building materials & thermal insulation
The same insulation effect have:
Insulating material
Aerated concrete or light
honeycomb bricks
Coniferous wood
Straw clay
Full clinker
Concrete
Source:
Brochure „Bauen für die Zukunft“, published
by German Energy Agency; original source
from „eza!“
Energy efficiency aspects in buildings
2. Type of building
1. Geographical position
4. Windows
3. Building materials
and insulation
Source:
Brochure „Bauen für die Zukunft“, published by
German Energy Agency (dena)
4. Windows
Layer reflecting heat
Surface temperature of
window: -1,0°C
Surface temperature of
window: +15,7°C
Source:
Ludwig Häussler GmbH
Source: IWU
Energy efficiency aspects in buildings
2. Type of building
1. Geographical position
4. Windows
3. Building materials
and insulation
5. Ventilation
Source:
Brochure „Bauen für die Zukunft“, published by
German Energy Agency (dena)
5. Ventilation
Simple form of ventilation
Mechanical extract ventilation
(MEV)
Mechanical ventilation with
heat recovery (MVHR)
Energy efficiency aspects in buildings
2. Type of building
1. Geographical position
4. Windows
3. Building materials
and insulation
5. Ventilation
6. Heating systems
Source:
Brochure „Bauen für die Zukunft“, published by
German Energy Agency (dena)
6. Heating - several options to use Renewable Energies
Combined heat
and power unit
(CHP)
Wood heating
Solar thermal heating
Heat pump
Source:
GMW Ingenieurbüro, 2007
7. Quality of planning, design and installation
Consulting &
Support
Planning
After-sales
quality
assessment
Installation
Energy efficiency aspects in buildings – Developments
Not Insulated Building
Passive House
Source: WIKIPEDIA, Lutz Weidner, PHI & Scherz &Scherz Architekten
Energy efficiency aspects in buildings – Developments
Zero Energy House
Source: Wikipedia, www.das-energieportal.de
Plus Energy House
Energy efficiency made in Germany
The Companies
www.efficiency-from-germany.info
Participating German Companies
Company
Representative
Hock GmbH & Co. KG
Blaž Primožič
PBW - Planungsbüro Wahlbuhl
Thomas Wahlbuhl
Architekturbüro für Energieberatung und
Energieeffizientes Bauen
Elvira Fischer-Zvizdic
LUNOS Lüftungstechnik GmbH für
Raumluftsysteme
Milan Kuster
Knauf Insulation GmbH & Co. KG
Barbara Hafner
Testo AG
Matjaz Ponikvar
Energy Efficiency made in Germany
Thank you for your attention!
eclareon GmbH
Antje Kramer
Luisenstraße 41
10117 Berlin
Tel: +49 30 246 286 90
Fax: +49 30 246 286 94
Internetseite: http://www.eclareon.com
www.efficiency-from-germany.info