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Njatc Atp Photovoltaic Systems Power Point Ch1

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Njatc Atp Photovoltaic Systems Power Point Ch1

  1. 1. Chapter 1 Introduction to Photovoltaic Systems Photovoltaics • PV Applications • PV Industry • Solar Energy Technologies
  2. 2. <ul><li>A utility-connected residential PV system is the most common system configuration. Various electrical components control, condition, and distribute the PV power to DC and/or AC loads. </li></ul>
  3. 3. <ul><li>An electric utility produces electricity at a power plant and distributes it to consumers through power lines, substations, and transformers. </li></ul>
  4. 4. <ul><li>Distributed generation systems produce electricity close to where it is used. </li></ul>
  5. 5. <ul><li>Selenium photoconductive cells eventually found uses in light-sensing electronics, such as exposure timing circuits in cameras. </li></ul>
  6. 6. <ul><li>The first practical photovoltaic cell was invented at Bell Laboratories in 1954. </li></ul>
  7. 7. <ul><li>Rural communications systems in the 1950s were the first terrestrial applications of PV technology. </li></ul>
  8. 8. <ul><li>Decades of development and manufacturing improvements have decreased the price per watt for PV systems. </li></ul>
  9. 9. <ul><li>Production and installation of PV systems is growing rapidly. </li></ul>
  10. 10. <ul><li>Nearly every satellite and spacecraft since 1958 has relied on a PV system for power generation. </li></ul>
  11. 11. <ul><li>Portable PV systems tend to be small and intended for specific loads. </li></ul>
  12. 12. <ul><li>Remote areas where conventional utility-supplied power is out of reach are ideal for the application of PV technology. </li></ul>
  13. 13. <ul><li>Supplemental power systems, most often for single-family homes, are the fastest-growing type of PV system installation. </li></ul>
  14. 14. <ul><li>PV technology can be used for large-scale power production, but this application is not yet common. </li></ul>
  15. 15. <ul><li>The PV industry is composed of several levels of businesses and organizations. </li></ul>
  16. 16. <ul><li>Skilled and well-trained installers are needed to ensure quality PV system installations. </li></ul>
  17. 17. <ul><li>The official mark of a listing organization signifies that a product meets the organization’s standards for safety and quality. </li></ul>
  18. 18. <ul><li>Renewable energy is expected to compose an increasingly larger portion of energy production. </li></ul>
  19. 19. <ul><li>Renewables portfolio standards and goals vary by state. </li></ul>
  20. 20. <ul><li>A flat-plate collector can utilize any solar radiation, direct or reflected, that strikes its surface. </li></ul>
  21. 21. <ul><li>Concentrating collectors focus a large area of direct solar radiation onto a relatively small area. </li></ul>
  22. 22. <ul><li>Solar architectural design uses building materials or design techniques to provide light and comfortable temperatures inside a building. </li></ul>
  23. 23. <ul><li>Solar thermal energy is a relatively simple way to provide domestic hot water or heating. </li></ul>
  24. 24. <ul><li>The intense solar radiation needed to produce electricity from thermal energy requires solar concentrating systems. </li></ul>

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