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January 26, 2011

Nuts and Bolts of Technology: Closer Look at Utility-Scale Solar Power. January 26, 2011. BSE Overview. Proven, Environmentally-Responsible Technology : Highest temperature and pressure solar steam Dry-cooling reduces water use Environmentally-friendly design.

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January 26, 2011

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  1. Nuts and Bolts of Technology: Closer Look at Utility-Scale Solar Power January 26, 2011

  2. BSE Overview Proven, Environmentally-Responsible Technology: • Highest temperature and pressure solar steam • Dry-cooling reduces water use • Environmentally-friendly design • Successful Pilot and Demonstration Projects: • SEDC Pilot generating ~100% of modeled energy at ~97% availability; exceeded 6MW design point by ~20% • Chevron Demonstration Solar-to-Steam for Enhanced Oil Recovery (EOR) nearly complete (solar field 95% erected, tower erection complete; boiler erection in process, SFINCS control system onsite) World Class Team: • Includes the key senior managers of Luz Int’l., which designed & built over 350 MW of solar thermal plants in the 1980’s • Project development team with over 20GW power projects developed, constructed, and managed • Robust Commercial Pipeline & Project Dev.: • 2.6GWs of signed PPAs with PG&E and SCE • Ivanpah ~400MW Electric for PG&E and SCE • Bechtel as EPC and Investor • Siemens Turbine/Riley Boiler • $1.37B DOE loan guarantee • ITC cash grant eligible • NRG Energy lead project investor • Shortlisted for a project in Israel • Selected and approved for a project in Crete

  3. Luz Power Tower (LPT 550) Technology Heliostats Boiler steam water Power Block

  4. LPT: Technology to Meet Evolving Performance Needs Inexpensive, high-performance thermal storage Flexible, high-quality steam + High-performance conventional turbine High-temperature, high-pressure steam Dispatchable, Shaped Output + Grid Support / Reliability Services + Maximum RPS (w/o tradeoffs) Natural gas augmentation

  5. Low-impact Design : Fitting the Natural Environment • Plant Design: • Maximizes retention of existing vegetation, land contours & natural features • Solar field does not require concrete foundations, and grading and leveling is extremely limited • Mirrors on pylons placed directly in the ground to fit natural contours of area, without need for foundations • Vegetation in the solar field will co-exist below the mirrors, trimmed so mirrors can track the sun • Soils and vegetation disturbed during construction and operation will be restored

  6. Low Impact Design – Limited Water Use • Water Use: Dry-cooling, Conservation & Closed-loop recycling • Uses air instead of water to condense steam • 95% less water use when compared to CSP using traditional wet-cooling • Uses 25 times less water than • competing trough technologies • Uses less than 100 acre feet per year; • equal to 300 homes worth of water • Closed-loop steam cycle & • conservation measures further reduce usage • Efficiency trade-off: Additional costs incurred by using dry-cooling are merited by environmental benefits

  7. Wet CSP/Conventional Cooling vs. Dry CSP Cooling *Source: California Energy Commission ^Source: Nuclear, Coal and Combined Cycle numbers from World Economic Forum report - Thirsty Energy: Water and Energy in the 21st Century

  8. 1999 Harrison St., Ste 2150 Suite 2150 Oakland, CA 94612 www.brightsourceenergy.com

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