Plus Energy Architecture - Planning, Operation and Benchmarking , 4th Energy Efficiency Symposium, San Francisco

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1 Fachbereich Architektur Technische Universität Darmstadt Plus Energy Architecture - Planning, Operation and Benchmarking , 4th Energy Efficiency Symposium, San Francisco Dipl.-Ing. Isabell Passig Fachgebiet Entwerfen und Energieeffizientes Bauen [FGee] Prof. Manfred Hegger 1

2 background... why do we need new benchmarks

3 50% Final energy consumption in buildings 50% Endenergie traffic buildings industry

4 Legal framework heat energy demand developement Auxiliary Power energetic parameters for housing [kwh/m 2 a] Hot Water Heating Renewables

5 legal framework future developement Germany/Europe POLITICAL DIMENSION European Commission 20/20/ European Parliament Zero-Energy-Standard LEGAL DIMENSION EnEV 2009 EnEV 2012 EnEV 2015 EnEV 2020

6 legal framework future developement Germany/Europe POLITICAL DIMENSION European Commission 20/20/ European Parliament Zero-Energy-Standard 2020 Plus Energy? 2020 LEGAL DIMENSION EnEV 2009 EnEV 2012 EnEV 2015 EnEV 2020 Plus Energy?

7 plus energy in context existing buildings 1 reduce energy demand through energy efficient refurbishment 90%of 2 Reduce CO 2 -Emissions by supplement renewable energy technologies housing volume Zero Energy Plus Energy?

8 plus energy in context existing buildings 1 2 Build new buildings as plus energy houses Create urban energy concepts

9 planning plus energy... find the optimum interaction of passive and active elements

10 creating energy concepts passive - active passive active Heat Preserve Heat Efficient Heat production Cold Protection against overheating Dissipate Heat Air Natural Ventilation Efficient mechanical Ventilation Light Use of daylight Optimized artificial light Current Efficient use of power Decentralized power production Reduce energy demand through design, construction and materials optimize energy supply through renewables and efficiency Quelle: Energie Atlas; Hegger et. al.; 2007

11 Solar Decathlon 2007

12 Solar Decathlon 2007 Passive Technologies Passive Technologies. compact building. highly insulated. passive solar gains and efficient sun protection. thermal mass through Phase Changing Materials. Natural ventilation. passive cooling system

13 active systems renewable energies WORLD ENERGY DEMAND 16 TWh per year RENEWABLE ENERGY RESOURCES/a FOSSIL ENERGY RESOURCES total Natural gas 215 TWh total Wind TWh per year Waves TWh per year Petroleum 240 TWh total Solar TWhper year Otec 3-11 TWh per year Uranium TWh total Biomass 2-6 TWh per year Tides 0.3 TWh year Hydro 3-4 TWh per year Geothermal TWh per year Coal 900TWh total Velux Model Home 2020

14 active systems photovoltaic surface potential Quelle: Thomas Stark, Energie, in: Energizing Architecture, Design and Photvoltaic, Claudia Lüling (Hrsg.), jovis Verlag, 2009

15 Solar Decathlon 2007 Active Systems Active Systems. Photovoltaic cells. Solar thermal collectors. Heat pump/heat recovery. energy-efficient appliances. energy-efficient lighting

16 Roof: 40 Sunpower SPR-215 moduls 3 angle flat roof integration performance: 9kWp Porch: 6 Scheuten glass-glass-modules with transparent PV-Cells Sunscreen, weather protection & energy gain performance: 2kWp

17 Louvers: total: 48 frame elements / 1488 lamellae with PV: 34 frame elements / 1054 lamellae performance: east/west: 0,5 kwp, south 1kWp

18 Solar Decathlon 2009 Foto: Thomas Ott

19 Solar Decathlon 2009 interior design Fotos: Thomas Ott

20 plus energy in operation... supervice building performance verify and optimize concepts

21 Solar Decathlon 2007 Energy Balance

22 PV Output 2009 Facade facade including the porch kwh Roof approx kwh Total energy production (2009) kwh Total energy consuption (2009) kwh Total plus energy kwh

23 Total performance photovoltaic: kwh of electricity per annum Average annual consumption (two occupants): Foto: Thomas Ott, kwh of electricity per annum

24

25 Solar Decathlon 2007 Net Metering Competition Days

26 plus energy architecture... using energy elements and technologies to design

27 House for the Future Plus energy Architect: Stephan Fabi, Fabi Architekten Other Project Members: Engineer: Markus Staudigl - General Solar Systems Deutschland GmbH Developer: SONNENkRAFT + Fraunhofer ISE + University of Applied Sciences Regensburg + fabi Architekten Completion: 2009 Location: Regensburg, Germany Quelle: activehouse.info

28 Plus energy house E-Mobility Architect: Universität Stuttgart, Institut für Leichtbau Entwerfen und Konstruieren, Prof. Dr.-Ing. Dr.-Ing. E.h. Werner Sobek Owner: BMVBS Completion: expected 2011 Standort: Berlin, Germany

29 Kraftwerk B plus energy Architects: Grab Architekten, Altendorf/CH Other Project Members: Amena, Winterthur/CH (HLS- Planung); Planforum, Winterthur/CH (Haustechnik), Intep, Zürich/CH (Bauphysik) Owner: Sanjo Immobilien, Altendorf Completion: 2009 Location: Bennau/CH

30 Production building SMA,Kassel, Germany Plus energy, CO 2 -neutral architects: HHS Planer + Architekten, Kassel Other Project Members: IB Goldmann, Kassel (Tragwerksplanung); EGS-Plan, Stuttgart (HLSE und Lichtplanung); Dürrbaum und Partner, Kassel (Elektroplanung); SMA Solar Technology Facility Management, Kassel (Bauleitung) Owner: SMA Solar Technology, Kassel Completion: 2009 Location: Kassel, Germany

31 plus energy a benchmark?... supervise building performance verify and optimize concepts

32 Zero Energy - Plus Energy How to benchmark it? Quelle:

33 Plus Energy Energy Pass?

34 Plus Energy Energy Pass???

35 Thank you for your attention... 35

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