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Sesi Presentation

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  • 1. April 20, 2011 Pragya SharmaGujarat Energy Research and Management Institute Research Innovation and Incubation Centre Gandhinagar, Gujarat pragyasees@gmail.com
  • 2. Technology classificationTechnology overviewR & D ApproachPhotovoltaic Development Options
  • 3. Crystalline Monocrystalline Polycrystalline CdTe (Cadmium Telluride) Solar Photovoltaic CIGS (Copper Indium Gallium Selenium)/CIS (Copper Indium Thin-film Selenium) CIS (Copper Indium Concentrating Diselenide) PhotovoltaicSolar Energy Amorphous Silicon (a- technology Si) Flat-plate Collectors Distributed Solar Thermal Evacuated Heat-pipe Tubes Parabolic Trough Solar Thermal Collectors Dish/Engine Systems Centralised Solar Concentrating Solar Thermal Power Towers Thermal Hybrid Systems / Integrated Solar Combined Cycle Linear Fresnel
  • 4. Solar Photovoltaic ConcentratingCrystalline Thin-film Photovoltaic CdTe (Cadmium Monocrystalline Telluride) CIGS (Copper Indium Gallium Selenium)/CIS Polycrystalline (Copper Indium Selenium) CIS (Copper Indium Diselenide) Amorphous Silicon (a-Si)
  • 5. modules Applicability Balance of the system Drivers of the PV Developm- DevelopmentEnvironme ent of dedicated encapsulationntal Quality materials and processes. Energy yield Value
  • 6. PV technology TrendsEmerging technologies Balance of the system R&D• Inorganic thin-film • Electronics, cabling, • Reduction of silicon Technology installation material and material and costs• Organic thin-film other parts, labour, • Improved cell structure Technology storage, sun tracking, and device efficiency• Thermophotovoltaic system Engineering • Improved Deposition Technique • Advanced material and concept
  • 7. Inorganic thin-film TechnologyOrganic thin-film TechnologyThermophotovoltaic
  • 8. Inorganic thin-film technologies PolycrystallineSpheral CIS Si thin-film solar cells solar cells
  • 9. Organic thin-film technologies Dye solar cells Organic bulk donor- acceptor heterojunction solar cells
  • 10. Thermophotovoltaics Concept: Thermophotovoltaic (TPV) generation of electricity is the conversion of the radiation of a heated body (photon emitter) into electric power by means of semiconductor photovoltaic cells.
  • 11. Research and FundamentalsInorganic solar Organic Solar Thermo cells Cells photovoltaic Reduction of grain Mechanically boundary structured metal Long term stability recombination or semiconductor velocity emitters Understanding of Efficiency interfacial Simulation and potential recombination/re characterization duction Reduction of active layer thickness by Device simulation Plasmonic incorporation of effects plasmonic effects
  • 12. Balance of the systemSun Tracking system Reduce need for the Engineering space, support structure and cabling
  • 13. Research andDevelopment•Reduction of siliconmaterial and costs•Improved cellstructure and deviceefficiency•ImprovedDepositionTechnique•Advanced materialand concept
  • 14. PV TECHNOLOGY CHALLENGES Module assembly: Develop materials and mounting techniques Tracking and Reduce need for the space, support structure and cabling Devices and efficiency: Develop materials and production technologies to improve efficiency Manufacturing and installation: To Find optimized design, production and test methods Development of dedicated encapsulation materials and processes
  • 15. Solar cell Assurance in Optical system Quality Power plant Module AssemblyEngineering and and Fabrication Inverter Tracker installation
  • 16. Solar cellBetter efficiency and long-term stability. Research to fit the cell design for the terrestrial solarradiation and the used materials of the optical systems.Calibration of multi-junction solar cellsSimulation of electrical performance
  • 17. Module Assembly and FabricationInnovative concepts (material, fabrication methods)for the housing.Long-term stability of the modules.Impermeability of the modules.Measurement and monitoring systems for indoorcharacterization.
  • 18. Quality AssuranceIndoor and outdoor characterization, including theageing and stability, of the single components, themodules and the whole system.EU-certification- and product- standards.Long-time monitoring for modules and systems.
  • 19. Optical systemBetter optical efficiency and long-term stability (> 20 years) ofthe optical systems.Higher angular acceptance (-> secondary) and concentrationfactor (in accordance to the solar-cells).Modelling of the optical design in accordance to the solarradiation and the materials.Measurement and monitoring systems for indoorcharacterization (solar simulator for concentrator optics).Evaluation of alignment problem (receiver-lens and lens-solarbeam) in manufacturing point focus system.
  • 20. Inverter and Power plant Engineering· Field testing.· Power plant deploy andinfrastructure.· Inverter communication withTracker
  • 21. Tracker and installationResearch in fabrication methods.Better tracking accuracy.Mechanical stability, stiffness, static.Workings on differential tracking and ecliptic tracking.Calibration models and techniques for tracking control (Auto-calibratedtracking control units, sun tracking accuracy monitoring systems).Analysis leading towards the industrialization of tracker and trackingcontrol unit.
  • 22. April 20, 2011 Pragya SharmaGujarat Energy Research and Management Institute Research Innovation and Incubation Centre Gandhinagar, Gujarat pragyasees@gmail.com