Terrestrial Photovoltaics By: Keiichi McGuire

Outline  Introduction  Physics of Photovoltaic Cells  Advancement in Technology  Arrays and Systems  Applications  Economics  Environmental Impacts

Introduction  What is Photovoltaics?  Brief History  Why use Solar Energy?

Physics of Photovoltaic Cells  Sunlight  It’s a PN Junction  Cell Efficiency

Advancement in Technology  Semiconductor Materials  Types of Cells  Monocrystalline  Polycrystalline  Amorphous  Gallium Arsenide  MultiJunction  Textured Silicon  Anti-Reflective Coating  Electrical Contacts

Arrays and Systems  Flat Plate Collectors  Concentrating Collectors  Systems

Applications  BIPV  Noise Barrier  In Case of Natural Disaster

Economics

Environmental Impacts  It’s Really Clean!  Little negative effect on environment….

Conclusion  Clean way of providing energy  Output of power is increasing  It will eventually get cheaper