Electricity Basics - Multiverse > Homecse.ssl.berkeley.edu/energy/Resources/Intr… · PPT file ·...
Transcript of Electricity Basics - Multiverse > Homecse.ssl.berkeley.edu/energy/Resources/Intr… · PPT file ·...
![Page 1: Electricity Basics - Multiverse > Homecse.ssl.berkeley.edu/energy/Resources/Intr… · PPT file · Web view · 2012-07-16PV Cell. The photovoltaic cell is the basic building block](https://reader034.fdocuments.us/reader034/viewer/2022051801/5ae74c267f8b9a3d3b8e5725/html5/thumbnails/1.jpg)
Energy from the Sun Workshop
Introduction to Photovoltaics
![Page 2: Electricity Basics - Multiverse > Homecse.ssl.berkeley.edu/energy/Resources/Intr… · PPT file · Web view · 2012-07-16PV Cell. The photovoltaic cell is the basic building block](https://reader034.fdocuments.us/reader034/viewer/2022051801/5ae74c267f8b9a3d3b8e5725/html5/thumbnails/2.jpg)
Electricity Basics• Electrical Current – how many
electrons• Voltage – how hard they’re pushed• Power – what they can accomplish• Circuit – where they can go• Series Circuit – one pathway only• Parallel Circuit – so many choices!
![Page 3: Electricity Basics - Multiverse > Homecse.ssl.berkeley.edu/energy/Resources/Intr… · PPT file · Web view · 2012-07-16PV Cell. The photovoltaic cell is the basic building block](https://reader034.fdocuments.us/reader034/viewer/2022051801/5ae74c267f8b9a3d3b8e5725/html5/thumbnails/3.jpg)
Parallel vs. Series CircuitsParallel circuits• maintain potential
(voltage is constant)
• Current is divided among components
• If one light goes out, the others stay lit
Series circuits• maintain electrical
flow (current is constant)
• Voltage is divided among components
• Easy to open circuit quickly
![Page 4: Electricity Basics - Multiverse > Homecse.ssl.berkeley.edu/energy/Resources/Intr… · PPT file · Web view · 2012-07-16PV Cell. The photovoltaic cell is the basic building block](https://reader034.fdocuments.us/reader034/viewer/2022051801/5ae74c267f8b9a3d3b8e5725/html5/thumbnails/4.jpg)
DC vs. ACDirect Current• “Battery power”• Electronics use• Requires
prohibitively high voltage to transmit over long distance
Alternating Current• EASY to generate• Can be
transformed in voltage
• Can be limited while keeping voltage high
• Can be transmitted over long distance without super-high voltage
![Page 5: Electricity Basics - Multiverse > Homecse.ssl.berkeley.edu/energy/Resources/Intr… · PPT file · Web view · 2012-07-16PV Cell. The photovoltaic cell is the basic building block](https://reader034.fdocuments.us/reader034/viewer/2022051801/5ae74c267f8b9a3d3b8e5725/html5/thumbnails/5.jpg)
Photovoltaics
![Page 6: Electricity Basics - Multiverse > Homecse.ssl.berkeley.edu/energy/Resources/Intr… · PPT file · Web view · 2012-07-16PV Cell. The photovoltaic cell is the basic building block](https://reader034.fdocuments.us/reader034/viewer/2022051801/5ae74c267f8b9a3d3b8e5725/html5/thumbnails/6.jpg)
![Page 7: Electricity Basics - Multiverse > Homecse.ssl.berkeley.edu/energy/Resources/Intr… · PPT file · Web view · 2012-07-16PV Cell. The photovoltaic cell is the basic building block](https://reader034.fdocuments.us/reader034/viewer/2022051801/5ae74c267f8b9a3d3b8e5725/html5/thumbnails/7.jpg)
PV Cell
![Page 8: Electricity Basics - Multiverse > Homecse.ssl.berkeley.edu/energy/Resources/Intr… · PPT file · Web view · 2012-07-16PV Cell. The photovoltaic cell is the basic building block](https://reader034.fdocuments.us/reader034/viewer/2022051801/5ae74c267f8b9a3d3b8e5725/html5/thumbnails/8.jpg)
![Page 9: Electricity Basics - Multiverse > Homecse.ssl.berkeley.edu/energy/Resources/Intr… · PPT file · Web view · 2012-07-16PV Cell. The photovoltaic cell is the basic building block](https://reader034.fdocuments.us/reader034/viewer/2022051801/5ae74c267f8b9a3d3b8e5725/html5/thumbnails/9.jpg)
Conversion Efficiency
![Page 10: Electricity Basics - Multiverse > Homecse.ssl.berkeley.edu/energy/Resources/Intr… · PPT file · Web view · 2012-07-16PV Cell. The photovoltaic cell is the basic building block](https://reader034.fdocuments.us/reader034/viewer/2022051801/5ae74c267f8b9a3d3b8e5725/html5/thumbnails/10.jpg)
PV Array Component
s
oPV CellsoModulesoArrays
![Page 11: Electricity Basics - Multiverse > Homecse.ssl.berkeley.edu/energy/Resources/Intr… · PPT file · Web view · 2012-07-16PV Cell. The photovoltaic cell is the basic building block](https://reader034.fdocuments.us/reader034/viewer/2022051801/5ae74c267f8b9a3d3b8e5725/html5/thumbnails/11.jpg)
PV System Components
![Page 12: Electricity Basics - Multiverse > Homecse.ssl.berkeley.edu/energy/Resources/Intr… · PPT file · Web view · 2012-07-16PV Cell. The photovoltaic cell is the basic building block](https://reader034.fdocuments.us/reader034/viewer/2022051801/5ae74c267f8b9a3d3b8e5725/html5/thumbnails/12.jpg)
Net Metering
![Page 13: Electricity Basics - Multiverse > Homecse.ssl.berkeley.edu/energy/Resources/Intr… · PPT file · Web view · 2012-07-16PV Cell. The photovoltaic cell is the basic building block](https://reader034.fdocuments.us/reader034/viewer/2022051801/5ae74c267f8b9a3d3b8e5725/html5/thumbnails/13.jpg)
Net Metering Participation
![Page 14: Electricity Basics - Multiverse > Homecse.ssl.berkeley.edu/energy/Resources/Intr… · PPT file · Web view · 2012-07-16PV Cell. The photovoltaic cell is the basic building block](https://reader034.fdocuments.us/reader034/viewer/2022051801/5ae74c267f8b9a3d3b8e5725/html5/thumbnails/14.jpg)
PV Array Fields
![Page 15: Electricity Basics - Multiverse > Homecse.ssl.berkeley.edu/energy/Resources/Intr… · PPT file · Web view · 2012-07-16PV Cell. The photovoltaic cell is the basic building block](https://reader034.fdocuments.us/reader034/viewer/2022051801/5ae74c267f8b9a3d3b8e5725/html5/thumbnails/15.jpg)
![Page 16: Electricity Basics - Multiverse > Homecse.ssl.berkeley.edu/energy/Resources/Intr… · PPT file · Web view · 2012-07-16PV Cell. The photovoltaic cell is the basic building block](https://reader034.fdocuments.us/reader034/viewer/2022051801/5ae74c267f8b9a3d3b8e5725/html5/thumbnails/16.jpg)
Source: Solarbuzz, a part of The NPD Group
![Page 17: Electricity Basics - Multiverse > Homecse.ssl.berkeley.edu/energy/Resources/Intr… · PPT file · Web view · 2012-07-16PV Cell. The photovoltaic cell is the basic building block](https://reader034.fdocuments.us/reader034/viewer/2022051801/5ae74c267f8b9a3d3b8e5725/html5/thumbnails/17.jpg)
• Clean• Sustainable• Free• Provide electricity to
remote places
Advantages of Solar Energy
![Page 18: Electricity Basics - Multiverse > Homecse.ssl.berkeley.edu/energy/Resources/Intr… · PPT file · Web view · 2012-07-16PV Cell. The photovoltaic cell is the basic building block](https://reader034.fdocuments.us/reader034/viewer/2022051801/5ae74c267f8b9a3d3b8e5725/html5/thumbnails/18.jpg)
Disadvantages of Solar Energy
• Less efficient and costly equipment
• Part Time• Reliability Depends On
Location• Environmental Impact of PV
Cell Production
![Page 19: Electricity Basics - Multiverse > Homecse.ssl.berkeley.edu/energy/Resources/Intr… · PPT file · Web view · 2012-07-16PV Cell. The photovoltaic cell is the basic building block](https://reader034.fdocuments.us/reader034/viewer/2022051801/5ae74c267f8b9a3d3b8e5725/html5/thumbnails/19.jpg)
Classroom Photovoltaics• Experiments help students
understand the conditions needed for optimal power production
• Focus of secondary-level solar curriculum
• Use digital multimeters
![Page 20: Electricity Basics - Multiverse > Homecse.ssl.berkeley.edu/energy/Resources/Intr… · PPT file · Web view · 2012-07-16PV Cell. The photovoltaic cell is the basic building block](https://reader034.fdocuments.us/reader034/viewer/2022051801/5ae74c267f8b9a3d3b8e5725/html5/thumbnails/20.jpg)
Using a Digital Multimeter
Indicates voltage from alternating current. Do not use.
DC Current Scale
DC Voltage Scale
Resistance Scale. Do not use.
![Page 21: Electricity Basics - Multiverse > Homecse.ssl.berkeley.edu/energy/Resources/Intr… · PPT file · Web view · 2012-07-16PV Cell. The photovoltaic cell is the basic building block](https://reader034.fdocuments.us/reader034/viewer/2022051801/5ae74c267f8b9a3d3b8e5725/html5/thumbnails/21.jpg)
For More InformationIf you have questions, we have answers:• www.need.org – our website• [email protected] – questions about
NEED• [email protected] – questions about
this workshop• 1-800-875-5029 – NEED main office
phone number