Solar Info Center Freiburg

1. Local Renewables Freiburg 2007 Solar Info CenterFreiburg a business development model for cities solar info center Rolf C. Buschmann Prof.Aux.UCLV

2. Global energy demand Source: IEA/World Energy Outlook solar info center

3. Global energy demand – rates of increase Total energy demand other sources of energy wind and solar solar info center

4. Dresdner Bank, Freiburg • In the 70ies in Germany our people didn´t mind to heat all over the whole year, and in summer time, they cooled the buildings at the same time. • technical innovations: • intelligent regulation systems, including an automatic control sytem for venetian blinds • Use of an adiabat cooling system, which works by spraying water into the ventilation system to get a cooling effect • free cooling ventiliation during the night in some parts of the building, which means to cool the building during the summer by raising the ventilation with fresh, cool air from the outside. To use this method you need heavy walls, ceilings and other materials inside to have temperature stores like cooling batteries in ice boxes. • total energy saving: about 60 % !! solar info center www.solar-info-center.de

5. Brauhaus Riegel Building conception: Reduction of the space heat requirement Installation of a thermic protection insulating glazing in the restaurant as well as an internal insulation in the bar and guest area. Improvement of the room air Source ventilation: the fresh preheated supply air expands within the base range into the guest area, continues to warm up by internal heat loads and presses up used air into the air exhaust duct. > best air conditions with optimized change of air  Reduction of the ventilation losses by ventilation heat recovery in the bar with a recuperation grade of 95 %. Reduction of the ventilation losses in the kitchen by use of ventilation equipment with direct admission of fresh air into the exhaust air caps: > optimal kitchen ventilation with smallest losses of energy over the exhaust air. solar info center www.solar-info-center.de

6. district heating systems in Freiburg, Germany • cogeneration unit disposal gas • wood-fired cogeneration plant • fermentation of bio waste • rape- cogeneration plant • 14,4 Mio. kWh/Jahr production electricity • wood-fired heating plants biomass solar info center Vortrag--EEQ Umweltschutzamt der Stadt Freiburg www.solar-info-center.de

7. indoor climatisation in the construction solar info center www.solar-info-center.de

8. cooling systems: geothermic adiabat solar info center www.solar-info-center.de

9. solarthermic process for cooling systems in buildings cold water thermic cooling heat process air condition Dr. Hans-Martin Henning, Fraunhofer ISE solar info center www.solar-info-center.de

10. proposal solar cooling for drugstore in Mantanzas, Cuba solar info center

11. Drugstore, Mantanzas solar info center

12. Drugstore, Mantanzas solar info center

13. Drugstore, Mantanzas solar info center

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15. Drugstore, Mantanzas solar info center

16. Medical Laboratory Building Renovation & Extension Natural Heat Sources and Heat Sinks Ground Utitlized by Bore-Hole Heat Exchangers solar info center www.solar-info-center.de

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20. Solar Info CenterFreiburg a business development model solar info center

21. technical competence planning, consulting, project developing, product engineering education & training exhibition e Lounge & Solar Casino What customers find... Infotage 2007 solar info center

22. Energy concept solar info center

23. no Extra costs • The Solar Info Center is financed on a private basis and has to work economically independent. • Integral Planning saves investment and operating costs. • Energy optimized building is economic, environmentally freindly and comfortable for the user. solar info center

24. Tageslichtsimulation Tageslicht- quotient in % 3,0 Verschattungsstudien 0,9 Day light and Shading • Active simulation during planning • bright office space through intelligent planning • No overheating in summer because of systematic shading systems • The adjustment control of the blinds reacts on temperature as well as individually for each office unit solar info center

25. Abluftventilator (2 je TH-Kern) Büros 5.OG Büros 4.OG Büros 3.OG Büros 2.OG Büros 1.OG Automatic Ventilation • Exhaust air ventilation, in combination with air intakes in the walls, assure constant fresh air • Cooling in summer through night air cooling • The massive walls store the cool temperatures from night into the day • No suspended ceilings solar info center

26. Rainwater concept • The courtyard is full of plants. The whole rain water of the site can drain away on the planted areas. • The draining water meets the ground and goes through pipes down under the basement where it can drain away. solar info center

27. Minimized Energy Consumption • 20 cm thermal insulation on the external walls and roof • Thermal insulating glazing, U=1,2 W/m²K • The need of thermal heat of the Solar Info Center is 29,8 kWh/m²a and about 30% below the by law permitted need. It is a so-called „3-Liter-House“. solar info center

28. Reduction of Emissions • There is a pipeline running through the site coming from the district heating system network at the university hospital. • We use the pipeline and receive the heat from a newly installed heat recovery system at this district heating system • The production of the thermal heat is emission-free by 100%. solar info center

29. Contracting • The Solar Info Center finances part of the heat recovery system by contracting • The heat recovery system delivers more energy than the Solar Info Center needs • No additional cost for user and investor compared to conventional system because of the reduced energy consumption of the building. solar info center

30. Cooperation and competition • Cooperation between the different firms in the SIC is everyday life • New common projects • Positive competition • Quick and efficient contact with experts solar info center

31. Innovation and established concepts • The building concept of the Solar Info Center combines mature technologies with the state of the art • The applied concept reflects actual economic solutions but in some parts of the building, research and development of new technologies never stops (PV-Tec, Concentrix, PSE) solar info center

32. Solar Info Center GmbHCenter Service • The Center Service is the heart of the Solar Info Center. It administers the house, coordinates requests, organises regular meetings and encourages a productive coexistence • The Center Service takes care of public relations and the marketing for the center and the located firms. solar info center

33. Solar Info Center GmbHCenter Net • The Center Net is the communication platform at the Solar Info Center. A place to share information about events, presentations and news. solar info center

34. Solar Info Center GmbHoffers Qualification • Competition • Common projects • Centralized continuing education • Get together –personally & electronically • „creative corridor“ – casual meetings in the house solar info center

35. Solar Info Center GmbHnetworking • Center Service: central marketing tool • Center Net: internal and external communication • net-e: alliance to other national and international Solar Info Centers and Centers for Renewable Energy solar info center

36. EnEd – International Education Center for Energy Solutions • Solar Info Center • model for technology centers • good connection for expertise in renewable energies Kasachstan Asia east Latin America • Südkorea • Japan SIC • Chile • Peru • Brasilien • Cuba • DomRep AREN Asian Renewable Energy Network • Singapur • Indonesien • Philippinen • Indien solar info center

37. Thank you very much ! solar info center