Energy 101 Fall 2015 Basic PV

1. Lecture 7
Solar 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

2. Sunlight to Electricity in 1839

4. How a solar cell works
• https://www.youtube.com/watch?v=K76r41ja
GJg
• http://video.pbs.org/video/980039287
• Saved by the Sun

5. Solar cell
Solar Cell

6. Solar panel:
Number of Cells =
Battery voltage x 3
Ex: Charge 12 volt battery:
12 x 3= 36 cells
Photovoltaics:
Sunlight Directly Into Electricity

8. PV Specs
Suntech 170
Open Circuit Voltage Voc 44 volts
Short Circuit current Isc 5.4 amps
Peak Power Voltage Vpp 35.6 volts
Peak Power Current Ipp 5.05 amps

9. Basic Configurations

10. PV Direct

11. Water Pumping System
Bullock Brothers Farm, Orcas Island, Washington

13. Off-Grid

14. Hybrid
• Ecovillage system diagram
• Solar wind hydro
• BGS campus system photos

15. SEED (Sustainability Education and
Enterprise Development) Center

16. Grid Tie – Batteries
Alaska Project
Interior/exterior

17. Grid Tie – No Batteries

20. Inverter Specs

21. PV Specs
Suntech 170
Open Circuit Voltage Voc 44 volts
Short Circuit current Isc 5.4 amps
Peak Power Voltage Vpp 35.6 volts
Peak Power Current Ipp 5.05 amps

22. • Maharishi School Solar
Add Brian in hole and brian welding rack
Maharishi School Solar

23. DC Disconnect
Inverter (SMA Sunny Boy)
Meter
AC Disconnect

24. Microinverter Grid Tie

25. Natural Energy Lab of Hawaii Authority
NELHA
North Kona, Big Island , Hawaii

27. American Wire Gauge