Energy Efficiency and Sustainable Buildings in Germany: Experiences and Trends

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1 Energy Efficiency and Sustainable Buildings in Germany: Experiences and Trends Michael Dax, German Sustainable Buidling Council (DGNB)

2 Energy costs are climbing Increase of consumer price indices Electricity Gas Heating Oil Solid Fuels Central and District Heating Source: German Federal Statistical Office, May 2011

11% Natural Gas Imports 89% Imports 97% Domestic production 24%

3 Dependancy on fossil fuel imports Import dependancy and self supply Domestic production 3% Mineral Oil Domestic production 11% Natural Gas Imports 89% Imports 97% Domestic production 24% Hard Coal Source: adapted from AGEB 2010, BGR-Database Imports 76%

4 Consumption of primary energy in buildings 395 kwh/(m²a) 251 kwh/(m²a) 183 kwh/(m²a) 131 kwh/(m²a) 105 kwh/(m²a) 73,5 kwh/(m²a) 54,5 kwh/(m²a) Gebäudebestand WSVO 95 EnEV 2002 EnEV 2009 EnEV 2012 EnEV 2015 EnEV 2020 WSVO = Thermal insulation regulation EnEV = Energy saving ordinance Source: energiewaechter in Anlehnung an Dr. Burkhard Schulze Darup

5 Governmental strategies and energy efficiency programs Governmental Instruments to Increase Energy Efficiency in Buildings and Industry Regulatory Policy Legal Energy Requirements Saving for Ordinance Energy Saving 2009 Obligation of Replacement Financial Support Loans Energy and subsidies KfWpromotional program: efficient construction /refurbishment Tax incentives Promotion Market Transparency Energy performance certificate Pilot Projects Information Qualification of Experts Source: adapted from German Energy Agency (dena)

6 KfW Energy efficient construction and refurbishment Energy efficient construction Long-term loan for the construction or the first purchase of a KfW Efficiency House 70, 55 and 40* Maximal loan of 50, EUR for one housing unit Low interest rates start from 1.41% Repayment bonus for KfW Efficiency Houses 55 and 40 (up to 10% of the loan amount) * 70%/ 55%/ 40% of the annual primary energy demand stipulated in the EnEV Source: KfW 2013

7 KfW Energy efficient construction and refurbishment Energy efficient refurbishment Promotion of a comprehensive refurbishment of existing buildings and historic buildings Investment grants up to 18, EUR for one housing unit Loans up to 75, EUR and low interest rates start from 1.00% Promotion of specific energy efficient individual measures up to 10% of the eligible costs or rather 5, EUR for one housing unit Energy efficient individual measures are considered such as insulation, modernization of the windows or the heating system Source: KfW 2013

8 Energy performance certificate For residential buildings Baseline are the requirements stipulated in the energy saving ordinance Certificate for the energy demand in new build buildings Certificate for energy consumption in existing buildings Valid for ten years Source: KfW 2013

9 Key policies of the German Energiewende (Energy transition) 2020 Renewable energy targets: 35% share (currently approx. 16%) 2022 Shut down of the last nucelar power plant 2050 Green house gas reduction: 80 95% Renewable energy targets: 60 80% share Energy efficiency: up by 50% Source: adapted from BMWi

10 Goals of the German Energiewende (Energy transition) Green house gas Renewable energy Energy efficiency 100% 60% 100% 80% 60% 50% 20% 10% 18% Source: adapted from BMWi

11 1988 Passive House

12 Typical external wall construction 1. Wallpaper 2. Adhesive 3. Plaster internal 4. Water pipes 5. Electrical wires 6. Brickwork 7. Mortar 8. Adhesive 9. Anchors 10. Insulation 11. Mesh armour 12. Mortar armour 13. Etch primer 14. Plaster external 15. Coating 16.

13 2000 Zero-Energy House R128

14 2011 Ultra-Plus-Energy House F87

15 What s next Sustainable Building and life-cycle oriented approach Project Development Construction Use Recycling (1-2 years) (2-5 years) 20 25% of total costs (20-40 years) 75 80% of total costs (0-1 years) Sources: dena; Pictures pixelio

16 Energy efficient building vs. sustainable building Energy efficient building Tightly sealed Highly insulated Controlled ventilation Energy efficient technologies Renewable energy sources Sustainable building All EE Building characteristics plus: Minimized environmental footprint Reduced life-cycle costs High user comfort Healthy indoor environment Reduced waste

More than 600 DGNB Auditors, Consultants and Registered Professionals Sources: DGNB

17 Rewarding sustainable building Germany has chosen! DGNB 500 BREEAM 25 LEED 25 D 500+ DGNB certified buildings 370+ registered projects More than 600 DGNB Auditors, Consultants and Registered Professionals Sources: DGNB Marketing, data from data from: data from

18 DGNB German Sustainable Building Council Founded 2007 NGO and not-for-profit organization Independent community of experts More than 500 volunteers in working groups and committees members DGNB Certification System DGNB Navigator DGNB Academy

19 Certification system Made in Germany Philosophy and principles Embedded Life-Cycle Assessment (LCA) harmonized by international standards (ISO / 14044) Life-Cycle oriented approach (LCC) Building Performance instead of individual and specific measures Based on EU standards and guidelines (e.g. CEN/TC 350) Voluntary standard, not mandatory Recommended by the German government as the official certification system for sustainable building

20 Holistic approach and balanced weighting

21 Thank you! Michael Dax, Managing Director (DGNB)

Energy Efficiency in Germany Status & Perspectives

Energy Efficiency in Germany Status & Perspectives October 7, 2013 in Bridgeport (USA) Dr. Hartmut Grewe energiewaechter GmbH by order of Energy Efficiency Export Initiative sponsored by the Federal Ministry