9 basic pv (solar electric) fall 2015
TRANSCRIPT
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Lecture 7Solar Electric Configuration
E-101 - Energy and Sustainability Professor Lonnie Gamble
Sustainable Living Department Maharishi University of Management
This presentation was prepared on solar powered computers
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Sunlight to Electricity in 1839
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How a solar cell works
• https://www.youtube.com/watch?v=K76r41jaGJg
• http://video.pbs.org/video/980039287
• Saved by the Sun
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Solar cellSolar Cell
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Solar panel: Number of Cells = Battery voltage x 3
Ex: Charge 12 volt battery:12 x 3= 36 cells
Photovoltaics: Sunlight Directly Into Electricity
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PV Specs
Suntech 170
Open Circuit Voltage Voc 44 voltsShort Circuit current Isc 5.4 ampsPeak Power Voltage Vpp 35.6 voltsPeak Power Current Ipp 5.05 amps
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Basic Configurations
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PV Direct
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Water Pumping SystemBullock Brothers Farm, Orcas Island, Washington
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Off-Grid
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Hybrid
• Ecovillage system diagram• Solar wind hydro• BGS campus system photos
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SEED (Sustainability Education and Enterprise Development) Center
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Grid Tie – BatteriesAlaska Project Interior/exterior
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Grid Tie – No Batteries
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Inverter Specs
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PV Specs
Suntech 170
Open Circuit Voltage Voc 44 voltsShort Circuit current Isc 5.4 ampsPeak Power Voltage Vpp 35.6 voltsPeak Power Current Ipp 5.05 amps
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• Maharishi School Solar
Add Brian in hole and brian welding rack
Maharishi School Solar
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DC Disconnect
Inverter (SMA Sunny Boy)
Meter
AC Disconnect
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Microinverter Grid Tie
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Natural Energy Lab of Hawaii AuthorityNELHA
North Kona, Big Island , Hawaii
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American Wire Gauge
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