APRIL 23–25, 2013 CONCENTRATING SOLAR POWER PHOENIX, ARIZONA PROGRAM REVIEW 2013 SunShot Concentrating Solar Power Program Review 2013 Welcome Dear Colleague: On behalf of the U.S. Department of Energy (DOE) SunShot Initiative, it is my pleasure to welcome you to the SunShot Concentrating Solar Power (CSP) Program Review 2013. The SunShot Initiative was launched in 2011 as a national collaborative effort aimed at addressing an aggressive cost reduction goal for solar-generated electricity to achieve grid parity without subsidy by the end of the decade. Since October 2011, the SunShot CSP Program has committed over $130M to new funding initiatives for CSP technologies. Combined with the awards continuing from prior funding opportunities, the Program maintains an appropriately balanced portfolio of projects at industry, national laboratories and universities developing technologies for the near-, mid- and long-terms. The Program Review features presentations by DOE awardees working at the forefront of research, development, and demonstration towards reducing costs and increasing performance of CSP technologies. The Review also brings together a broad base of external stakeholders to engage in and contribute to the deployment of the CSP technologies being developed under the SunShot Initiative. Plenary sessions on each day of the meeting include keynote talks that offer broad perspectives on topics ranging from quantifying the value of CSP and thermal energy storage, presented through grid integration analysis as well as from the vantage of a utility company, to global projects and opportunities for CSP from an international financing viewpoint. Complementing the keynote presentations are highlight talks featuring three recently graduated projects from the portfolio that have leveraged successful technology developments with DOE funding and continued the momentum towards commercialization. It is an exciting time for CSP, with tremendous activity building up worldwide as many countries invest in CSP systems as part of their sustainable energy infrastructure. In the U.S., several large-scale commercial CSP plants are poised to be commissioned beginning in 2013 that will collectively more than triple the current capacity. As a culminating event of the Program Review, attendees will have a unique opportunity to witness a part of this growth through a tour of the Abengoa Solana Generating Station, a 280 MW parabolic trough plant with six hours of thermal energy storage—one of the brand new CSP plants revving up to contribute to the nation’s renewable energy portfolio. Your participation greatly enhances the success of the Program Review, and I invite you to have engaging discussions with the attendees—be it for networking, seeding collaborative ventures or providing technical feedback. With best wishes, Ranga Pitchumani Director, Concentrating Solar Power SunShot Initiative SunShot Concentrating Solar Power Program Review 2013 Table of Contents Schedule of Events Tuesday, April 23, 2013 .................................................................................1 Wednesday, April 24, 2013 ..............................................................................2 Thursday, April 25, 2013. .3 Speaker Biographies Keynote Speakers .....................................................................................4 Highlight Presentation Speakers. .5 Keynote Presentation Abstracts Quantifying the Value of CSP with Thermal Energy Storage, P. Denholm and M. Mehos ................................6 Financing CSP Projects in Emerging Markets: A Perspective from the World Bank Group, D. Younger .......................7 Integrating CSP with TES into a Utility System, B. Albert .........................................................8 Highlight Presentation Abstracts eSolar’s Modular and Scalable Baseload Molten Salt Plant Design and Feasibility Project, C. Tyner and D. Wasyluk. .9 Polymeric Mirror Films: Durability Improvement and Implementation in New Collector Designs, R. Padiyath, E. Peterson, and D. Chen . 11 A New Generation of Parabolic Trough Technology, H. Price, P. Marcotte, K. Biggio, K. Manning, and D. Arias. 13 Thermal Receivers: Supercritical Carbon Dioxide and Molten Salt (Tuesday, 10:15 am – 12:15 pm, Kiva C) High-Efficiency Low-Cost Solar Receiver for Use in a Supercritical-CO2 Recompression Cycle, S. Sullivan, E. Vollnogle, J. Kesseli, and J. Nash . 15 Direct s-CO2 Receiver Development, M. Wagner, Z. Ma, J. Martinek, T. Neises, and C. Turchi ......................... 17 High Flux Microchannel Receiver Development with Adaptive Flow Control, M. Drost, R. Wegeng, S. Apte, and V. Narayanan. 19 Advanced Low-Cost Receivers for Parabolic Troughs, J. Stettenheim, T. McBride, O. Brambles, P. Magari , B. Davis, M. Iveson, W. Chen, R. Kaszeta, N. Kattamis, and C. Cheng. 21 Thermal Storage and Heat Transfer Fluids: Thermochemical (Tuesday, 10:15 am – 12:15 pm, Pueblo) Sulfur Based Thermochemical Energy Storage for Solar Power Tower, B. Wong, L. Brown, R. Buckingham, D. Thomey, M. Roeb, and C. Sattler ............................................................................... 23 Chemically Reactive Working Fluids for the Capture and Transport of Concentrated Solar Thermal Energy for Power Generation, R. Brotzman, M. Urgun-Demirtas, and J. Libera .......................................................... 25 Low-Cost Metal Hydride Thermal Energy Storage System for Concentrating Solar Power Systems, R. Zidan, T. Motyka, B. Hardy, J. Teprovich, D. Knight, B. Peters, C. Corgnale, and C. Buckley .............................................. 27 Reversible Metal Hydride Thermal Energy Storage for High Temperature Power Generation Systems, E. Rönnebro, G. Whyatt, M. Powell, K. Simmons, Z. Fang, and R. White ........................................................... 29 Power Cycles and Thermal Receivers: Hybrid and Air Brayton (Tuesday, 1:15 pm – 3:30 pm, Kiva C) Integrated Solar Thermochemical Reaction System for the High Efficiency Production of Electricity, R. Wegeng, D. Brown, R. Diver, P. Humble, J. Mankins, D. Palo, B. Paul, and W. TeGrotenhuis ............................................... 31 Micromix Combustor for High Temperature CSP Air Brayton Cycle Systems, K. Brun and S. Coogan. 33 A Small Particle Solar Receiver for High Temperature Brayton Power Cycles, F. Miller, A. Hunt, and M. McDowell ........... 35 Brayton-Cycle Baseload Power Tower CSP System, B. Treece and B. Anderson ....................................... 37 Novel Dry Cooling Technology for Power Plants, C. Martin and J. Pavlish ........................................... 39 i SunShot Concentrating Solar Power Program Review 2013 Table of Contents Power Cycles: Supercritical Carbon Dioxide and Solid State (Tuesday, 1:15 pm – 3:30 pm, Pueblo) 10-MW Supercritical-CO2 Turbine Test, C. Turchi, T. Held, J. Pasch, and K. Gawlik ................................ 41 Development of a High Efficiency Hot Gas Turbo-Expander and Low Cost Heat Exchangers for Optimized CSP Supercritical-CO2 Operation, J. Moore, K. Brun, P. Bueno, C. Kalra, D. Hofer, and J. Davis ...........................................43 Next-Generation Thermionic Solar Energy Conversion, N. Melosh, Z. X. Shen, and K. Littau .......................... 45 Concentrated Solar Thermoelectric Power, G. Chen, Z. F. Ren, K. McEnaney, D. Kraemer, L. Weinstein, S. Boriskina, Q. Jie, T. Dahal, F. Cao, and W. S. Liu ................................................................... 47 High Temperature High Efficiency Solar Thermoelectric Generators (STEG), D. S. Ginley, E. S. Toberer, C. E. Kennedy, G. J. Snyder, S. A. Firdosy, B. Nesmith, A. Zakutayev, A. Goodrich, J. Netter, M. H. Gray, M. L. Olsen, P. F. Ndione, E. L. Warren, L. L. Baranowski, and P. A. Parilla .......................................................... 49 Solar Collectors: Manufacturing (Tuesday, 4:00 pm – 5:45 pm, Kiva C) Flexible Assembly Solar Technology, E. Toister and B. Koretz ................................................... 51 Material and Labor Efficiency with Suspension Heliostat™, W. Bender, N. Hine, and D. Schneider ....................... 53 Advanced Reflective Films and Panels for Next Generation Solar Collectors, A. Molnar and M. B. O’Neill ................... 55 Low-Cost, Light Weight, Thin Film Solar Concentrator, G. Ganapathi, A. Palisoc, B. Nesmith, G. Greschik, K. Gidanian, and A. Kindler . 57 Solar Collectors: Optics (Tuesday, 4:00 pm – 5:45 pm, Pueblo) Advanced Manufacture of Reflectors, R. Angel. 59 Development of a Low Cost Ultra Specular Advanced Polymer Film Solar Reflector, G. Jorgensen, A. Harant, K. Wagner, R. Gee, and M. DiGrazia ............................................................................. 61 Microtracking and Self-Adaptive Solar Thermal Concentration, N. C. Giebink and J. S. Price ............................ 63 Planar Optical Waveguide Coupler Transformers for High-Power Solar Energy Collection and Transmission, N. P. Kobayashi, R. E. Demaray, and R. Mullapudi ....................................................................... 65 Thermal Storage: Phase Change Materials (Wednesday, 10:00 am – 12:00 pm, Kiva C) Using Encapsulated Phase Change Salts for Baseload Concentrated Solar Power Plant, A. Mathur, R. Kasetty, J. Oxley, and J. Mendez. 67 Low Cost Encapsulated Phase Change Materials for Utility Scale Thermal Energy Storage, D. Y. Goswami, E. Stefanakos, and M. M. Rahman ................................................................................... 69 High Efficiency Thermal