SUSTAINABLE BUILDING MORE THAN ENERGY EFFICIENCY. Dr. Christine Lemaitre Deutsche Gesellschaft für Nachhaltiges Bauen DGNB e.v.

Transcription

1 SUSTAINABLE BUILDING MORE THAN ENERGY EFFICIENCY Dr. Christine Lemaitre Deutsche Gesellschaft für Nachhaltiges Bauen DGNB e.v.

2 Energy Efficiency as a Prerequisite for Sustainable Buildings Why Sustainability? DGNB - Vision and Tools Is there a Business Case for Sustainability? Energy Efficiency is a Prerequisite Future Trends

3 Cities in the 21 st Century 2% of the earth is covered by urban areas globally cities use 75% of energy and account for 70% of CO2 emissions ~50% of the world population lives in cities, 25% in Eastern Africa, 33% in India, 75% in Germany Today cities grow faster than in North America and Europe during industrialization In China about 300 Mio. people will move to cities within the next 10 years Higher population plus higher urbanization rates generates further momentum

4 Development of Cities 1950 DGNB e.v.

5 City Heat Map 1970 DGNB e.v.

6 City Heat Map 1990 DGNB e.v.

7 City Heat Map 2010 DGNB e.v.

8 City Heat Map 2025 DGNB e.v.

9 Cities are like Magnets GDP is significantly higher in urban regions High dependency between material needs and urbanization rate

10 The DGNB The Knowledge platform for Sustainable Construction

11 The DGNB in a Nutshell >800 Member organizations 35 DGNB certifications worldwide Employees in the head office in Stuttgart

12 The DGNB Vision Design, build and operate the build environment in a way that meets the needs of the present without compromising the ability of future generations to meet their own needs.

13 Innovation: DGNB Head Office DGNB Head office Tenant fit-out - New offices DGNB Certificate in Gold Copyright: swencarlin.com

14 DGNB - A Metrics for Sustainability What gets measured gets done! Albert Einstein had a sign on his office wall: Not everything that counts can be counted, and not everything that can be counted counts So be sure you have the right measures! Avoid the shift of burden Life Cycle Approach Consider needs of all stakeholders Sustainability Focus on the relevant

15 A Holistic Approach DGNB e.v.

16 Focus on the Building Life Cycle DGNB e.v.

17 Anticipate the consequences of your design Criteria and benchmarks to be adapted to Different use types (residential, office, retail, hotel, industry, urban districts, ) Different stages (design, new build, existing building, in use) Different regions 17

18 New Urban Districts Maidar EcoCity+, Maidar (Mongolia) New Urban Districts DGNB Pre-Certificate in Platinum RSAA

19 2nd Generation Certification System DGNB e.v.

20 Is there a Business Case for Sustainability?

21 Significance of Health, Wellbeing and Productivity for Business DGNB e.v.

22 Sustainable Building Trend or Change? DGNB e.v.

23 The Business Case Asset value Design and Construction Costs Operating Costs Workplace Productivity and Health Risk Mitigation Scaling Up from Green Buildings More easily attract tenants, command higher rents and sale prices Cost premium typically not as high as perceived by development industry Savings typically exceed any design and construction cost premiums Improved worker productivity and well-being benefits for businesses Sustainability risk factors significantly affect rental income and future value Neighborhood and city scale delivers large-scale economic priorities Source: WorldGBC Report 2013: The Business Case for Green Buildings

24 The Importance of Energy Efficiency for Sustainable Buildings DGNB e.v.

25 Influence of Energy Performance Life Cycle Assessment (LCA) Primary energy Life Cycle Costing (LCC) Thermal comfort User Control Building Envelope Quality Adaptability of Technical Systems Design Concept Documentation for Facility Management Systematic Commissioning 25

26 Motel One Köln Waidmarkt New Hotels DGNB Certificate in Gold MotelOne

27 ibis + ibis budget Hotel Berlin Kurfürstendamm New Hotels DGNB Certificate in Gold Christoph Weiss

28 RiemHotels RAMADA und H2 Messe München New Hotels DGNB Certificate in Platinum FONDARA Immobilien AG (Foto: Carola Kohler)

29 29 DGNB e.v.

30 Requirements for Building Certification DGNB pre-certificate / LEED Core and Shell Development Focus on Ecodesign of the complete building No evidence of life cycle based criteria is required / possible DGNB Certificate / LEED New Construction Certification as build Evidence is required on product level

31 Trends: Transparency, Disclosure & Optimization DGNB Building Life Cycle Impact Reduction Use of Environmental Product Declarations for optimization Criteria addressing sustainable sourcing Transparency for all Products with Local Environment Impact Indoor air quality measurements LEED v4 Building Life Cycle Impact Reduction Building Optimization and Disclosure: Environmental Product Declarations Building Optimization and Disclosure: Sourcing of Raw Materials Building Optimization and Disclosure: Material Ingredients Other rating systems incorporating demand for Transparency & Disclosure

32 Summary Global growth of population and urbanization are rapidly driving demand for construction, especially in (mega)cities Sustainability is a framework better to understand future changes of our economic system and the related consequences for the environment The DGNB Building Rating Scheme provides the Metrics to measure Sustainability Energy efficiency plays a key role in many criteria of the DGNB system Sustainable construction is driven by an underlying business case for involved stakeholder groups information on environmental performance is needed The future design process will incorporate sustainability, e.g. in BIM and ease certification process

33 SUSTAINABLE BUILDING MORE THAN ENERGY EFFICIENCY Contact: Dr. Christine Lemaitre Deutsche Gesellschaft für Nachhaltiges Bauen DGNB e.v.