Terrestrial Photovoltaics

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Terrestrial Photovoltaics

• By Keiichi McGuire

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Outline

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

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Introduction

• What is Photovoltaics?
• Brief History
• Why use Solar Energy?

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Physics of Photovoltaic Cells

• Sunlight
• Its a PN Junction
• Cell Efficiency

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Advancement in Technology

• Semiconductor Materials
• Types of Cells
• Monocrystalline
• Polycrystalline
• Amorphous
• Gallium Arsenide
• MultiJunction
• Textured Silicon
• Anti-Reflective Coating
• Electrical Contacts

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Arrays and Systems

• Flat Plate Collectors
• Concentrating Collectors
• Systems

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Applications

• BIPV
• Noise Barrier
• In Case of Natural Disaster

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Economics
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Environmental Impacts

• Its Really Clean!
• Little negative effect on environment.

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Conclusion

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