Download - “1,000 GW capacity by 2050”
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DESERTEC10,000 GW FROM DESERTS BY 2050
Large-scale deployment of BSE/Luz II solar towers
Energy Forum, Hannover, April 24, 2008
USA 1999 Harrison Street, Suite 500, Oakland, California 94612, Tel. (510) 550 8161, Fax. (510) 550 8165 www.BrightSourceEnergy.com
ISRAEL 11 Kiryat Mada St., Har Hotzvim, P.O.Box 45220, Jerusalem 91450, Tel. +972 77 202 5000, Fax. +972 2 571 1059 www.luz2.com
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“1,000 GW capacity by 2050”• The technology and component availability
– Approach to the desired technology and at market-driven quantities
• Solar energy in the desert - availability and transmission– Potentially recognized and assumed for this
presentation• Solar electricity price
– How to reduce solar electricity price to half of current state of the art trough technology, is not presented here.
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What’s the approach?
• The BSE / Luz II way
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Original Luz Solar Trough Design*
*Still used by many competitors
Modular Solar Field
Centralized Power Block
The 354 MW of original Luz plants have generated over 11,000 GWh of electricity worth more than $1.7 billion in revenue
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Technology & Design Philosophy• Compete with conventional power production:
– solar steam parameters equal to conventional energy steam parameters
• Follow global market trends to minimize costs: – use available materials and
components• Implement technology as it becomes available
– Build DPT 550 plants (subcritical) as DPT SC1 technology (supercritical) is developed
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Luz II Distributed Power Tower (DPT550)
Steam Condenser
Solar Tower
Receiver
Solar Field
Steam 550°C
165 Bar
Steam Turbine
Electric Generator
AirCooling
Heliostats
Solar Boiler
Tower
CalibrationTarget
5500C Steam to power block
7m2 Heliostat
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Efficiency Evolution
Source: Alstom 7
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Heliostats
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Receiver
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1,000 GW by 2050• Major equipment items would otherwise be
produced for conventional power requirements– power block equipment including turbines– boilers
• Towers and heliostats are fabricated from plentiful, conventional materials such as steel and glass
• As an example, ~5 billion m2 of mirrors will be required for 1,000 GW
– roughly equal to one year’s glass production worldwide (2005 figures)
– But spread over 30 years, it is only 3% of the world glass market
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Rotem Pilot Plant, Israel, July 2007
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October 2007
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November 2007
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November 2007
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November 2007
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November 2007
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December 2007
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January 2008
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January 2008
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February 2008
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March 2008
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March 2008
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MarchMarch 20082008
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March 2008
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So Why Have We Chosen Tower?• Greater thermal efficiency• Greater electrical efficiency• Lower parasitic losses• Lower capital costs• More site flexibility• Greater natural
resource efficiency
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Power Tower
Power Block
Heliostat Field
Thank you
December 2007