Sustainable building in Germany - Government policies and new market opportunities

Transcription

1 Sustainable building in Germany - Government policies and new market opportunities Dr. Rüdiger Kratzenberg Federal Ministry of Transport, Building and Urban Development

2 Welcome Sustainable building in Germany: the initial situation Energy-saving construction: guidelines plus support Comprehensive sustainability evaluations Sustainable building through innovative solutions

3 19,5 Mio Buildings 1,50 Mio Non-Residential Buildings 18,0 Mio Residential Buildings 3

4 Energy Consumption and Building Stock in Germany Distribution of Energy among the different consumers Mechanical Energy 37% Heating 34% Industry 9% Distribution Profession 26% Information/ Communication 1% Illumination 2% Heat for Industrial Processes 26% Private 65% 4

5 European climate protection goals European Union summit meeting on 8 March 2007 By 2020 Cutting primary energy consumption by 20% on the basis of forecasts for 2020 Increasing the renewable energy share of the EU s total energy consumption to 20% and Cutting greenhouse gas emissions by 30% ( developed countries ) to below 1990 levels Goal by 2050: Reducing CO 2 emissions by 60-80%

6 Federal Government s Energy Strategy Reduce primary energy demand by around 80 % by 2050 Reduce heating demand by 20 % by 2020 Introduce climate neutral buildings as of 2020 Refurbishment roadmap for building stock 6

7 Sustainable building in Germany: the initial situation Energy-saving construction: guidelines plus support Comprehensive sustainability evaluations Sustainable building through innovative solutions

8 Instruments to attain goals 1. Introduce legislation Energy Conservation Act (EnEG), Energy Savings Ordinance (EnEV) Renewable Energy Heat Act (EEWärmeG) Heat Cost Regulations (HeizkV), etc. 2. Provide support German Development Bank (KfW), CO ² Building Rehabilitation Prog., market incentive prog., pilot project funding ( Efficient Homes ), etc. 3. Supply information Public relations work (campaigns, education, information) Pilot projects Energy performance cert., etc.

9 Instruments to attain goals 1. Introduce legislation Energy Conservation Act (EnEG), Energy Savings Ordinance (EnEV) Renewable Energy Heat Act (EEWärmeG) Heat Cost Regulations (HeizkV), etc. 2. Provide support German Development Bank (KfW), CO ² Building Rehabilitation Prog., market incentive prog., pilot project funding ( Efficient Homes ), etc. 3. Supply information Public relations work (campaigns, education, information) Pilot projects Energy performance cert., etc.

10 Primary energy demand heating [kwh/m 2 a] History of energy-efficient construction WSVO 1977 Minimum requirements (Thermal Insulation Regulations / Energy Conservation Regulations) WSVO 1984 Solar houses Construction practice Low energy houses WSVO 1995 EnEV 2002/2007 EnEV 2009 EnEV 2012 Research (demonstration projects) 3 liter houses Zero energy houses Plus energy houses 10 Source: IBP, Erhorn

11 Energy Saving Ordinance (EnEV) Stipulates maximum values for energy demand in buildings Sets requirements concerning building insulation Sets requirements concerning heating, cooling, ventilation and lighting Evaluates energy source used with regard to its impact on the environment e.g. oil, gas or renewable energies (biomass, wood, etc.) Applies to all residential and non-residential buildings Applies to all new builds and buildings undergoing modernization Sets requirements for issuing energy performance certificates Stipulates who may issue certificates, e.g. engineers, architects or planners Stipulates upgrading of existing buildings, e.g. replacement of old heating boilers or roof insulation

12 EnEV 2009: complex energy efficiency evaluation Building envelope AND building services AND lighting 2. Building services Heating & warm water condensing boiler technology Solar collector for hot water generation Ventilation, cooling, etc. 1. Building envelope Roof U-ref = 0.20 W/m²K Windows U-ref = 1.3 W/m²K Curtain wall U-ref = 1.4 W/m²K Sun protection 3. Lighting Thermal bridges U WB = 0.05W/m²K Base plate Uref = 0.35 W/m²K

13 Enhancing transparency with energy performance certificates How much does yours do to the square meter?

14 The government leads the way: energy demand of federal buildings

15 Instruments to attain goals 1. Introduce legislation Energy Conservation Act (EnEG), Energy Savings Ordinance (EnEV) Renewable Energy Heat Act (EEWärmeG) Heat Cost Regulations (HeizkV), etc. 2. Provide support German Development Bank (KfW), KfW, CO² Building Rehabilitation Prog., market incentive prog., pilot project funding ( Efficient Homes ), etc. 3. Supply information Public relations work (campaigns, education, information) Pilot projects Energy performance cert., etc.

16 Funding / stimulus packages Good for the climate and for your pocket: wrap your house up warm. State-funded building refurbishment cuts your heating bill, helps the environment and creates employment

17 Instruments to attain goals 2. Provide support German Development Bank (KfW), CO ² Building Rehabilitation Prog., market incentive prog., pilot project funding ( Efficient Homes ), etc. 3. Supply information Public relations work (campaigns, education, information) Pilot projects Energy performance cert., etc.

18 Project Energy Efficient Homes Energy-efficiency refurbishments: 500 best practice buildings all over Germany Examples of all building types and construction periods included

19 Project Energy Efficient Homes City Leipzig Year of construction 1973 flats 168 Primary energy before (kwh/ m² / a) Primary energy after (kwh/ m² / a) Reduction (primary energy) City % Hannover Year of construction 1959 flats 20 Primary energy before (kwh/ m² / a) Primary energy after (kwh/ m² / a) Reduction (primary energy) %

20 Sustainable building in Germany: the initial situation Energy-saving construction: guidelines plus support Comprehensive sustainability evaluations Sustainable building through innovative solutions

21 Measuring and conveying sustainability Angela Merkel: we must endeavor to make sustainability tangible. (speech on 27 November 2007) Sustainable development means more than just energy efficiency. Sustainability measures encompass a building s entire life cycle, from the initial planning concepts to the removal and recyclability of a building after its useful life has ended.

22 Measuring and conveying sustainability Aim: to convey sustainability with regard to buildings and complexes in an improved and more detailed manner We must enable a balanced assessment of ecological, economic, social, functional and technical aspects, while at the same time accounting for quality in terms of urban planning design and planning, realization and management processes We must also enable the allocation of marks of quality, such as the German Sustainable Building Quality Label The quality criteria are determined according to relevance and feasibility on the basis of the most concrete facts and figures available The evaluation systems should place the appropriate emphasis on broadly recognized goals and issues

23 German Sustainable Building Quality Label Ecological quality % Economic quality % Social & functional quality % Technical quality % Quality of processes % Overall evaluation (property) %

24 Ecological quality Economic quality Socio-cultural and functional quality Technical quality of the building Quality of processes Locational quality German Sustainable Building Quality Label Effects on the global and local environment Resource consumption Life-cycle costs Performance Health, comfort and user satisfaction Functionality Design quality Planning quality Construction quality Management quality

25 German method Total results 25

26 WECOBIS - Building Material Database

27 WECOBIS Organisation Operator BMVBS Bavarian Chamber of Architects Committies Office BBSR (Federal Institute), Divison II6 Construction and Environment Organisation scientific advisory council chief editor main- / subject editors History 2000 ECOBIS, CD version 2010 WECOBIS, web based 2011 integration into the System for Sustainable Building (BNB) Financing Zukunft Bau (BMVBS) Bavarian Chamber of Architects BBSR (Federal Institute) 27

28 WECOBIS Content Data Content web-based information system with regard on health issues and environmental parameters of building products data with focus on life cycles links to other systems and web platforms, e.g. - GISBAU - Ökobau.dat (LCA) - Environmental Product - Declaration (EPD) - Sustainable Building (BNB) - signs and labels (ISO 14025) Building Products Categories building boards flooring insulation seals timber/derived timber product adhesives solid construction mortar and screeds surface treatment glazing Basic Construction Material binders aggregates plastics metals 28

29 WECOBIS Structure Specialised Knowledge evaluating and categorising building products Life Cycles Phases with regard on environmental and health aspects 29

30 Sustainable building in Germany: the initial situation Energy-saving construction: guidelines plus support Comprehensive sustainability evaluations Sustainable building through innovative solutions

31 BMVBS research initiative Future Building Comprises BMVBS federally funded research and proposal-based research, initiated by the building sector Federally funded research: general issues that are closely related to regulatory law or other federal provisions; topics of socio-political relevance Proposal-based research functions according to the precept: Research should concern topics that will foster innovation in the industry ; i.e.: the construction industry receives support for its research projects (part funding industry share should amount to 50% or a minimum of 30%)

32 Research clusters Demographic change Sustainable building, construction quality Plus energy houses, new concepts & prototypes Legislative framework, awarding contracts Modernization of the building stock Energy efficiency, renewable energies, tools New materials and technologies

33 Initial results Colored solar panels for suspended, rear-ventilated facades Source: TU Dresden Prototype of an innovative composite panel with variable color and surface design that functions as both facade cladding and a photo-voltaic panel

34

35 Directive 2010/31/EU on the energy performance of buildings Introduction of this nearly zero-energy building standard ( climate neutral building ) Article 9 of the Directive states: Member States shall ensure that a) by 31 December 2020, all new buildings are nearly zero-energy buildings; and b) after 31 December 2018, new buildings occupied and owned by public authorities are nearly zero-energy buildings. Member States shall draw up national plans for increasing the number of nearly zero-energy buildings. These national plans may include targets differentiated according to the category of building. 35

36 Directive 2010/31/EU on the energy performance of buildings Definition of a nearly zero-energy building: Article 2 of the Directive defines a nearly zero-energy building as a building that has a very high energy performance. The nearly zero or very low amount of energy required should be covered to a very significant extent by energy from renewable sources, including energy from renewable sources produced on-site or nearby. 36

37 What puts the plus in the house Energy efficient building Optimum orientation Thermal zoning Thermal insulation Superwindows Avoid thermal bridges Air tightness Visualize behaviour Low system temperatures Short pipes, Hydraulic balancing Efficient power units Demand management Efficient devices, Efficient lighting Heat recovery Efficiency House Plus Use renewable energy Solar gains through windows Use daylight Solar panels Biogenic fuels Geothermal energy or ambient heat Heat recovery Photovoltaics Wind turbines 37

38 The model house funded in the Future of Building research initiative wins the SD competition Photo: TU Darmstadt

39 Next stage: coupling the house with electric mobility Photos: EVV Essen 39

40 Competition results 1st place: Stuttgart University 40

41 Opening at 7th December

42 Competition results 1st place: Stuttgart University 42 Source: Uni Stuttgart, Prof. Sobek

43 Project data Energy balance of the house 120,00 100,00 KWh/m²a 80,00 60,00 40,00 37,50 19,38 5,00 6,88 101,88 EMobility Auxiliary energy Equipment Ligthing Hot water Heating PV panels 20,00 11,88 21,25 43 Dr. Rüdiger 0,00 Kratzenberg: Sustainable Demand Generation

44 44

45 45

46 The network: Energy Plus Houses in Germany Fertighauswelt Köln Bien-Zenker Huf-Haus Finger-Haus Luxhaus Weber-Haus Fotos: Hersteller 46

47 Project of the Nassauischen Heimstätte : Frankfurt-Riedberg Perspective Photovoltaic Facade (South side) 47

48 Planning Competition Neu Ulm Two Winners First Winning Design: Hochschule Ruhr West Department Energy Sytems & Energy Management Prof. Dr.-Ing. Viktor Grinewitschus supported by Werner Sobek Stuttgart GmbH & Oehler Archkom Solar Architektur 48

49 Planning Competition Neu Ulm Two Winners Second Winning Design: Technical University of Darmstadt, Department of Architecture, Department Group Construction and Tecnologie Prof. Dipl.-Ing. M. Sc. Econ. Manfred Hegger supported by o5 architekten bda raab hafke lang + ina Planungsgesellschaft mbh 49

50 Thank you for listening!