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System-Driven Analysis Receivers and Modules Concentrator Cells Draft Working Document August 2003 2003 2004 2005 2006 2007 1. 2. Exploration and development of a myriad of third- generation solar cell approaches for efficiency of 60%; select university research teams. Evaluate optimized cell grown by molecular-beam epitaxy (MBE) to assess the viability of GaInNAs for multijunction cells. Task 1: CPV Cell Research and Development 4. 5. Task 2: CPV Receiver Research and Development Task 3: CPV Module Research and Development Task 4: CPV Systems Analysis 21. 22. Solar Energy Technologies Program Multi-Year Technical Plan 77 17 18 14 15 16 14. 15. 16. Test high-efficiency (35%) concentrator cell receiver in concentrating solar power dish system. Assess need to develop integrated receiver packaging to resolve thermal management, flux uniformity, and cell protection issues. 8 34 3. Assess research on exploring pathways to high-efficiency PV and develop plans for implementation phase. Demonstrate 37% efficiency under concentration. Demonstrate the feasibility of third-generation PV devices such as hot-carrier and impact-ionization concepts. Demonstrate 39% cell efficiency under concentration. Reduce III-V cell cost substantially through film transfer, wafer bonding, or buffer layer technologies while maintaining or increasing cell performance. 12576 13 1112 9 10 11. Complete capability to evaluate multijunction concentrator cells and modules to 1000x with lowest practical uncertainty Assess R&D needs for CPV optical elements 19 23 24 21 25 22 26 20 Milestones 6. 7. 8. 9. 10. Develop testing protocol for III-V solar cells under concentration Begin implementation efforts of Phase II, High Performance PV addressing CPV cell components Assess implementation efforts of Phase II, leading to the initiation of Phase III of High Performance PV implementing CPV cell advances 12. 13. Assess issues of operating a high-efficiency multijunction cell under a high-concentration Fresnel lens. Address the operating issues assessed for high-efficiency multijunction cells under a Fresnel lens 17. 18. Develop international qualification standard for CPV receivers with III-V solar cells Assess need for new system designs having reduced weight as measured in terms of kg/kW or kg/m2, while meeting structural and wind loading requirements. Assess need to develop lower-cost manufacturing processes through plant layout, supply specification, component design, or system design 19. 20. Design a conceptual concentrator PV system targeting 33% system efficiency and meeting 2025 levelized cost of energy goals Assess needs for low-cost, high-accuracy, stable tracker concepts Develop a modified international version of IEEE 1513- 2001 to qualify III-V solar cells in a concentrator PV system. Conduct complete CPV systems analysis using the systems driven approach to verify and prioritize target barriers Conduct complete CPV systems analysis to identify and verify appropriate CPV markets and to identify CPV systems interface issues Track field operation of concentrator PV systems deployed by other organizations Support concentrator PV stakeholders in the development of other (international) standards needed for CPV components and for systems integration 23. 24. 25. 26. LegendPDF Image | Solar Energy Technologies Program
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