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Schlaich Bergermann und Partner, Stuttgart Tel.+49 (0)711-648710 info@sbp.de

Wolfgang Schiel

November 2007. Frankfurt

Office Overview and Renewable Energy Activities at Schlaich Bergermann und Partners

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Office StuttgartHohenzollernstraße 1D-70178 Stuttgart

T: +49(711)648 71 0Fax: +49(711)648 71 66Stuttgart@sbp.de

Office BerlinGustav-Meyer-Allee 25D-13355 Berlin

T: +49(30)4 63 07-360Fax: +49(30)4 63 07-365Berlin@sbp.de

Office New York54 West 21st StreetNew York, NY 10010

T: +1(212)255-3682Fax: +1(212)255-3703newyork@sbp.de

Schlaich Bergermann und Partner, sbp gmbhinfo@sbp.de

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eSchlaich Bergermann und Partner are engaged in severalfields of civil and structuralengineering:

The scope of work includes all planning phases and ranges fromfeasibility studies, conceptualdesign through detailed structuraldesign to the supervision of workshop and site construction. Our close contact to teachingand research work at theStuttgart University places readilyat our disposal the latest "state of the art" as well as the know-howof new construction methods and materials.This easily enables usto include any type of experimental work (such as material testing, structuraltesting, wind-tunnel tests) in ourproject studies.

Bridges Road Bridges

Railroad Bridges

Pedestrian Bridges

Buildings for Administration

Residence

Universities

Hospitals

Towers, Silos Telecommunication Towers

Water Towers

Cement Silos

Sport Facilities Stadiums

Athletic and Swimming Arenas

Special Structures like

Cable-net Structures

Shell Structures

Cooling Towers

Aircraft Hangars

Industrial Plants

Renewable Energy Systems

Solar Chimney

Concentrating solar Power

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Second Hooghly River Bridge, Calcutta, India (1970)

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Second Hooghly River Bridge, Calcutta, India

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Ting Kau Bridge, Bride to the new Airport in Hong Kong (Design & Build Contract)

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Entrance Bridge over Nesenbach Valley to the Freeway, Stuttgart, Germany

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Havel Railway Bridge, Berlin-Spandau/ Germany

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Bullfight Arena in Saragssa in Spain

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Roof Gottlieb-Daimler-Stadium Stuttgart, Germany

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Busan Dome, Busan, South Korea

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Inchon Munhak Stadium, South-Korea

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"Dubai Sports City", Dubai

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Kalifa Stadium Doha, Qatar

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Freedom Tower New York, USA

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Solar Electric Systems

0

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Dish/Stirling-System

point-concentrating

Parabolic TroughPower Plant

Solar ChimneyCentral Receiver

Power Plant

line-concentrating non-concentrating

Solar Thermal Power Plants for Electricity Generation

Classification of available solar thermal technologies for electricity generation

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Central Systems Decentral Systems

Technologies for solar electricity generation

Hydro power plants

Windparks

Biomass

Solar Chimney

Parabolic Trough Plants

Central Receiver Systems

Wind

Dish / Stirling

Photovoltaic

Biomass

Ocean Energy

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Dish-Stirling Prinziple1. A parabolic shaped mirror reflects the direct solar insolation onto a heat exchanger of a Stirling engine

2. The solar heat absorbed by the heat exchanger (receiver) will be delivered to the Stirling engine

3. The Stirling engine converts the heat into mechanical energy

4. An electric generator is directly coupled to the crank shaft of the Stirling engine and concerts the mechanical energy into electricity

Concentrator

Solar Insolation

Stirling Receiver

Generator

Cavity Receiver

Heat Exchanger of the Stirling engine

Dish Drive

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50 kW Dish-Stirling in Saudi Arabia (solar village) developed and built by sbp, (1983 / 1988), Stirling engine: 50 kW 4-275 Stirling engine from United Stirling AB

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eDish-Stirling System

Early polar mounted Systems

Three polar mounted System, Almeria / Spain(1991 / 1993)

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Early 10 kW Dish-Stirling Prototypes developed and built by sbp, Almeria/Spain (1992 / 1996)

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9 kW Dish-Stirling Prototype. (a) Campus of the University, Stuttgart and Gardenshow in Pforzheim (1989 / 1991), Stirling engine: V-160 Stirling engine from Stirling Power System, USA

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Sbp 10 kW Dish-Stirling Unit in operation

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The basic engine with drive unit and solar Receiver

Dish-Stirling System

EuroDish Details

SOLO Stirling 161

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CRU Seville

CRU Würzburg

CRU Milano

CRU Odeillo

Test bed Almería

Dish-Stirling System

Country Reference Units

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Country Reference Units (CRU) built in 2002/2004

CRU in Odeillo/FranceCRU in Würzburg/Germany

CRU in Milano/Italy CRU in Seville/Spain

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Glass tube

Absorber tubewith selectivecoating

Tracking

Parabolic concentrator with a reflecting surface

Direct Solar Radiation

Prinziple of a Parabolic Trough Power

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• EuroTrough I (ET 100), 2000

• EuroTrough II (ET 150), 2002

• INDITEP, 2003

• SKAL-ET, 2003

• AS1 (AndaSol), 2006

• AS1 advanced + Anda NT, 2007...

Parabolic Trough Development Steps

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Torque Box Design

LS3 Design

Torque Tube design

Torsionalresistance

Bending resistance

EuroTrough I2000

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Eurotrough II installation at the Plataforma Solar de Almería/ Spain

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eEuroTrough II2002

Targeted collector forPhotogrammetric 3D-analysis(DLR)

Graphic output of the measurementFor visualization(DLR)

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Measured thermal and optical efficiencyof the EuroTrough II collector

0 100 200 300 400 K

0.0

0.2

0.4

0.6

0.8

1.0

DNI = 900 W/m2

global efficiency, for mirror reflectivity of 93.1%

optical losses at ϕ=0

thermallosses

me

asur

ed g

lob

al e

ffici

enc

y

average temperature above ambient

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Areal View of the 150 MW FPL Solar Trough Power Plant, Mojave-Desert, California

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SKAL-ET loop integrated in the SEGS V plant in California

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• Fabrication and erection concept proven• 3 years of continuous operation• Thermal efficiency 70.3 %

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eAndaSol-1 Project

• Nominal Power: 50 MW • Storage: 6 h full load, Salt• Plant size: 1.500 m x 1.300 m• Aperture Area: 510. 200 m²• No. of Collectors: 7.488 • Yearly Energy: 153 GWh/Jahr

Partner:COBRA; SENER; FlagSol; sbp

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eAndasol 12006

AndaSol I collector structure

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Solar Chimney Principle

Tube

TurbineCollector Collector

Schlaich BergermannSolar GmbH

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Eine Turbine Viele Turbinen

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Solar Chimney Manzanares, Experimental Plant 1982, Spain

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Solar Tower Power Plant in Spain (Concept Design)

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Schlaich BergermannSolar GmbH

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200 MW Solar Tower Power Plant (Concept Design), Mildura, Australien

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eAufwindkraftwerk: Abmessungen und Kosten am Beispiel eines sonnenreichen Schwellenlandes

capacity 5 30 50 100 200 MW

tower height 550 750 750 1000 1000 mtower diameter 45 70 90 110 120 mcollector diameter 1250 2950 3750 4300 7000 m

tower cost 22 54 70 173 188 Mio. €collector cost A 12 60 97 130 319 Mio. €turbine cost incl. housing etc. 9 34 51 82 146 Mio. €engineering, tests, misc. 5 19 28 46 48 Mio. €total investment cost 48 167 246 431 701 Mio. €grant 5 5 5 5 5 Mio. €total investment cost - grant 43 162 241 426 696 Mio. €

annuity on investment B,D 3.4 12.6 18.8 33.3 54.5 Mio. €o&m cost 0.2 0.7 1.1 1.9 3.3 Mio. €electricity production C 14 87 153 320 680 GWh/ yrLEC (levelized electricity cost)D 0.26 € 0.15 € 0.13 € 0.11 € 0.08 € €/ kWhnon-energy revenues 1.0 1.0 1.0 1.0 1.0 Mio.€/yrLEC incl. non-energy rev. 0.18 € 0.14 € 0.12 € 0.11 € 0.08 € €/ kWhA average labor cost 5 Euro/hB depreciation time: 25 years, interest rate: 6%C at 2300 kWh/(m²yr) global solar insolationD grant included in calculation

Solar Updraft Towers

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Schlaich Bergermann und Partner, Stuttgart Tel.+49 (0)711-648710 info@sbp.de

Thank you very much for your attention