solar technology from germany– solar thermal, solar...

Solar Technology from Germany– Solar Thermal, Solar Cooling and Concentrated Solar Power (CSP)AHK Germany- India (Kolkata)Industry Conference 06.05.2010

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Anton NeuhaeuserFraunhofer Institute for Solar Energy Systems (ISE)

• Motivation• Domestic Hot Water• Solar Cooling• Solar Process Heat• Concentrated Solar Power (CSP)

Solar Technology

Solar Resource

SolarWind

Biomass

Geothermal

Hydro

Annual world energy demand

© Fraunhofer ISE

Solar Radiation Potential – Global Horizontal

© DLR

Solar Thermal Power (total in operation) – World 2008 (~ 184.000.000 m2)

Europe

USA & Canada

India

Israel

RoW

China

Australia S/M-

America

Turkey

Japan

© BSW

Installed Solar Thermal Power – in Germany

© BSW

Applications for Concentrating Collectors

Tem

pera

ture

• Industrial Prozess Heat• Solar Cooling• Off-grid Electricity • Polygeneration

Medium Scale Plants

• Solar Cooling (single stage)• Low Temperature

Process heat

Vacuum TubeCPC Collectors

• Domestic Hot Water

Flat Plate Collectors

ElectricityCSP Plants

Gravity Flow (Thermosiphon)

ThermosiphonGravity Flow2-3m2 collector area100-200 l. solar storage tankCosts ~ € 1,000 – 1,500

© Solarpraxis

Typical System for Germany

Typical data for Germany(4-person household)Forced circulation5-6m2 collector area300-400 l. solar storage tankCosts ~ €4,000 – 5,000

Condensing boileroli, gasnew: wood pelletsrarely: elec. power

Flat-plate or vacuum tube collector

Solar station with controls and circulation pump

Waterstorage tank

Cold water inlet © BSW

Applications for Concentrating Collectors

Tem

pera

ture

• Industrial Prozess Heat• Solar Cooling• Off-grid Electricity • Polygeneration

Medium Scale Plants

• Solar Cooling (single stage)• Low Temperature

Process heat

Vacuum TubeCPC Collectors

• Domestic Hot Water

Flat Plate Collectors

ElectricityCSP Plants

Solar Radiation and required Cooling Load

© BSW

Solar Assisted Cooling (SAC) – Example (Hotel in Spain)

328

collectors34

5 m2absorber areaoutp

ut 274 kW

peak

3 tankscapacit

y 36,000

ltr

Auxilliary heatingoutp

ut 259 kW

110

apartementes 3 ba

rs2 restaurants

HotelBelroy

Palace

© BSW

Solar Assisted Cooling (SAC) – Example (Hotel in Spain)

© BSW

Applications for Concentrating Collectors

Tem

pera

ture

• Industrial Prozess Heat• Solar Cooling• Off-grid Electricity • Polygeneration

Medium Scale Plants

• Solar Cooling (single stage)• Low Temperature

Process heat

Vacuum TubeCPC Collectors

• Domestic Hot Water

Flat Plate Collectors

ElectricityCSP Plants

Industrial Energy Demand

© Mirroxx

Industrial Process Heat

SteamSeparator

Boiler

Industrial Process

Steam Boiler for Backup

SteamWater-Steam-Mix

Example – Roof Integrated Linear Fresnel Collector for Solar Cooling

Seville, Spain (Source:Mirroxx GmbH)

Applications for Concentrating Collectors

Tem

pera

ture

• Industrial Prozess Heat• Solar Cooling• Off-grid Electricity • Polygeneration

Medium Scale Plants

• Solar Cooling (single stage)• Low Temperature

Process heat

Vacuum TubeCPC Collectors

• Domestic Hot Water

Flat Plate Collectors

ElectricityCSP Plants

Concentrated Solar Power (CSP) - Technologies

Receiver

Parabolic Mirror

Heat Transfer System

Support Structure

© Fraunhofer ISE

Parabolic Trough und Linear Fresnel Collector Technology

Solar Tower und Dish-Stirling Technology

Source: Abengoa

CSP-Projects World Wide

• 13 GW under development and construction world wide

• 9 GW in USA,• 3,5 GW in Spain• Mostly Parabolic

Trough Technology

Summary

• Systems for a wide range of temperatures and applications available

• Growing number of installed systems world wide• German Suppliers and Research Institutes:

• Know-how covering the complete value chain • Aim: efficient and cost competitive CSP-Components

Thank you!

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Dipl.-Ing. Anton NeuhaeuserSolar Thermal Power Plantsanton.neuhaeuser@ise.fraunhofer.deFraunhofer Institute for Solar Energy Systems ISE