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Solar Hydrogen Generation Research Performing Organization: University of Nevada Las Vegas (UNLV) Research Foundation Key Technical Contact: Tom Williams, 702-895-2833, thomas.williams@unlv.edu DOE HQ Technology Manager: Thomas Rueckert, 202-586-0942, thomas.rueckert@ee.doe.gov FY 2005 Budget: $4,214K (DOE), $841K (UNLV cost share) ___________________________________________________________________________________ Objectives • Research economically feasible concepts for solar-powered production of hydrogen from water. Accomplishments • Award was issued in September 2005. Future Directions • Identify thermochemical cycles that are attractive for hydrogen production. • Accelerate development and characterization of state-of-the-art photovoltaic components, coupled to durable photoactive oxide films immersed in electrolytes that would be suitable for generating hydrogen. ____________________________________________________________________________________ 1. Introduction The Solar Hydrogen Generation Research (SHGR) Project, led by the University of Nevada Las Vegas Research Foundation, will define economically feasible concepts for solar-powered production of hydrogen from water, consistent with the cost and schedule goals outlined by DOE. The SHGR Project integrates efforts that cross the program boundaries of two DOE activities: the Hydrogen Fuel Cells and Infrastructure Technology Program, which is responsible for R&D of hydrogen-production technologies, and the Solar Energy Technologies Program, which is responsible for collection and use of solar thermal and photolytic energy. Solar energy can be collected and used in at least two approaches to hydrogen production: thermal energy applied to thermochemical water splitting and photoelectrolysis of water in a photoelectrochemical (PEC) process. These two processes are completely different in their approach to hydrogen generation, but they are similar in that they both split water into oxygen and hydrogen with no other products, and they both use only solar energy and water as feedstocks. The programmatic deliverable product is a pilot plant design and implementation plan for a solar- powered hydrogen production system that meets or beats the metrics articulated in the DOE multi- year program plan for “Hydrogen Production and Delivery” and contributes to reducing dependence on foreign oil supplies. The project consists of three related research and development tasks: (1) solar thermochemical hydrogen generation processes, (2) metal oxide laboratory studies, and (3) photoelectrochemical hydrogen generation. Tasks 1 and 2 focus on identifying attractive thermochemical cycles for hydrogen production. Task 3 accelerates development and characterization of state-of-the- art photovoltaic components, coupled to durable photoactive oxide films immersed in electrolytes that would be suitable for generating hydrogen. 2. Technical Approach and Planned FY 2006 Activities The proposed project has two tasks, which are to be accomplished over a 12-month period. On completion of these tasks, information will be available with which to evaluate the economic potential of hydrogen derived from solar thermal energy. The first task, the primary effort of the proposed work, is the identification and selection of thermochemical cycles for water splitting. The second task is the continuation of current work on aerosol flow reactor technology and extension to high-temperature water splitting cycles. These tasks involve collaboration with Sandia National Laboratories (SNL), the National Renewable Energy Laboratory (NREL), the Georgia Institute EERE Crosscutting Activities 192PDF Image | DOE Solar Energy Technologies Program
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