ABENGOA SOLAR Solar Power for a Sustainable World

Transcription

1 Parabolic Trough Technology Solar Power International 2009 Hank Price Abengoa Solar Inc. Lakewood, Colorado Solnova 1 & 3-50 MWe Parabolic Trough Plants (Spain)

2 Abengoa Solar in CSP ABENGOA SOLAR Develops Builds Operates Parabolic Trough, Power Tower Plants and Installations Some examples Solucar platform Solnova 1, 3 and 4 PS10 and PS20 Solana ISCCs Steam and water heating installations 300 MWs (Spain) 150 MWs (Spain) 31 MWs (Spain) 280 MWs (US) 150/480 MWs (Algeria/Morocco) MWts (US) 2

3 CSP Projects PS10 & PS20 3

4 Solana 250 MWe Parabolic Trough Plant Nominal Power Technology Thermal Energy Storage Reheat Steam Cycle General Description Location Gila Bend, Arizona 250 MW e net Parabolic Trough 2,200,000 m 2 6 hours Indirect, 2-Tank Indirect Molten-Salt 2 x 140 MW e gross, 100 bar, 715º F 4

5 Parabolic Trough Plant Operational Experience Solar Electric Generating Systems (SEGS) Nine trough plants built between 1984 and locations in California Mojave Desert 14 to 80MW, 354MWe Total Luz Parabolic Trough Collector Technology PPA: Southern California Edison All plants continue in daily operation Many being upgraded to extend operation 25% Fossil Backup Kramer Junction, CA SEGS III VII Five 30 MWe Parabolic Trough Plants Source: KJC Operating Company 5

6 Parabolic Trough Technology Benefits from 20+ Years of Parabolic Trough Experience Improvements in Parabolic Trough Technology Receiver Technology New Mirror Technology New Collector Designs Thermal Energy Storage New Process Technology Modeling and Assessment 6

7 Parabolic Trough Receiver Technology Increased Supply Multiple vendors with multiple factories U.S. Suppliers Improved Receiver Technology Improved selective coatings Improved glass to metal seal design Reduced breakage Reduced bellows shadowing Hydrogen problem addressed Improvement in Receiver Thermal Performance ~ 30% better thermal performance than Luz 7

8 Parabolic Trough Mirror Technology Increased Supply Multiple vendors U.S. Suppliers New Glass Mirror Technologies Tempered & laminated glass options Mirrors made with more environmentally friendly manner Improved automated manufacturing of mirrors Non-Glass Reflectors New polymeric film reflectors with hard coats and anti-soiling layers Anodized aluminum reflectors Rioglass Factory Uses Automotive Windshield Technology 8

9 Parabolic Trough New Collector Designs Parabolic Trough Collectors Larger sizes New steel and aluminum designs Factory assembly techniques Precision alignment jigs. Hydraulic Drive Accumulator for defocusing in power failure Improved Control System Updated electronics Fiber optic & wireless communications Collector Interconnection Ball joints New flexhose and swivel designs Parabolic Trough Collector 9

10 Parabolic Trough Thermal Energy Storage Near-Term TES Indirect, two-tank, molten-salt technology Andasol I & II 50 MWe, 7.5 hrs Solana 250 MWe, 6 hrs Advanced TES Thermoclines Concrete Phase change materials Nano Fluids New R&D Facilities Capacity to tailor power generation to utility needs Lower cost of power Increase in capacity of the solar plant with higher annual usage of the power block Abengoa Solar TES pilot plant 10

11 Parabolic Trough New Process Development New Working Fluids Higher temperature heat transfer fluids Molten-Salt as a heat transfer fluid Direct steam generation Nano Fluids Larger Power Plant Sizes SEGS 80 MW (Solar Capacity Factor 24%) Solana 250 MW (Solar capacity factor 40%) Reduced Water Dry cooling is commercially available Hybrid wet/dry options under development New Solar Integrations ISCC Solar/Combined cycle Hybrid Cameo Coal/Solar Hybrid Plant Algeria, Morocco, Egypt, Florida Xcel Energy / Abengoa Solar Solar/Coal Hybrid Xcel Cameo Solar used for preheating feedwater 11

12 Improved Modeling Performance: SAM/TRNSYS Optical: Raytracing codes Structural Analysis Improved Optical Assessment Tools Distant Observer VSHOT TOPS Photogrammetry Deflectometry Portable Reflectometers Improved testing of components Receiver thermal loss testing IR Imaging Structural testing Precision measurement Parabolic Trough Modeling and Assessment Sky Receiver Mirrors IR Imaging of Trough Collector 12