1 / 10

Thermal and PV System Lauren Masseria Jenny Bishop Bryan Picard

Thermal and PV System Lauren Masseria Jenny Bishop Bryan Picard. Solar Photovoltaic Photo=light Voltaic=electricity. The conversion of solar energy directly into electricity. Brief History. Discovery credited to French physicist Edmund Becquerel in 1839 ‘Wet Cell’ Battery

maddox
Download Presentation

Thermal and PV System Lauren Masseria Jenny Bishop Bryan Picard

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Thermal and PV SystemLauren MasseriaJenny BishopBryan Picard

  2. Solar PhotovoltaicPhoto=light Voltaic=electricity The conversion of solar energy directly into electricity

  3. Brief History • Discovery credited to French physicist Edmund Becquerel in 1839 • ‘Wet Cell’ Battery • 1883 the first PV cell was created • 1950 at the Bell Laboratory, New Jersey • Research on silicon semiconductors • 1960’s-70’s Orbiting satellite usage • 1970’s Rise in residential and commercial usage • Energy crisis • 1980’s Consumer electronic devices

  4. Why Solar? • Reliable • Long term cost benefits • Environmentally friendly • Remote Locations (grid unavailability) • State, federal and private incentives • Socially responsible • Positive public image

  5. Panels & Cells • A cell consists of sliced up crystals, connected with wire, and placed in a module • Life expectancy = over 30 years • There is nothing exhausted in the silicon cells, and theoretically, if well packaged and protected from moisture they could produce electricity indefinitely.

  6. PV cells are a junction between two thin layers of dissimilar semi-conduction materials known as ‘p’ and ‘n’ type semi conductors • Most cells made from silicon, a semiconductor, and the second most abundant element in the earth’s crust • Sets up an electric field when joined • Photons (sun energy) hit this electric field and transfer energy to the p and n semi conductors creating a reverse electric field and an electric current

  7. Types of Cells Three types of PV cells Monocrystalline Polycrystalline Amorphous

  8. Monocrystalline Silicon with a single crystal lattice structure with no impurities and virtually no defects most efficient at 16% • most expensive • longest life span

  9. Polycrystalline Consists of many small grains of connected monocrystalline silicon • 15% efficiency • typically less expensive than monocrystalline

  10. Amorphous / Thin Film Silicon are much less ordered than in the mono and polycrystalline cells • 8% efficiency • least expensive • Most flexible models, ex rolls • Take the most space • Are being phased out

More Related