1. REVIEW
Twister With A Twist!

2. THE SUN

3. Sun Affects Many Things
Wind (heating of land)
Water (water cycle)
Biomass (growth of plants, decomposition)
We feel and use many things that the sun has touched,
BUT can we use it directly?

4. Solar Energy (Hawewe Ikehu)

5. Sun Details Energy is in sun’s rays (solar radiation)
Solar radiation gives thermal energy

6. Hawaiians & the Sun
Dried Kapa
Pili Grass for Thatch
Salt Ponds

7. Solar in Hawaii Lanai Molokai Maui Kauai Oahu Hawaii Ocean Hydro
Geothermal
Biomass
Solar
Wind
Source: “A Catalog of Potential Sites for Renewable Energy in Hawaii” by Global Energy Concepts, LLC, Dec. 2006

8. Catching Solar Energy
Solar Thermal
Photovoltaic

9. Renewable
Energy
Solar Thermal

10. Solar Thermal Solar Thermal – Uses sun’s thermal energy
to heat a space or liquid.

11. Solar Thermal Power Plant
Parabolic trough

12. Solar thermal power plant
Solar Dish

13. Solar thermal power plant
Solar power tower
Solar melts steel

14. Activity – Solar Cooker
Each student build solar marshmallow cooker.

15. Photovoltaic
Renewable
Energy

16. Photovoltaic – Changes light into electricity
Photo..WHAT??
Photo -- light
Voltaic -- voltage
Photovoltaic – Changes light
into electricity

17. Photovoltaic Panel Changes sunlight into electricity
Called a Solar Cell or PV
Each cell made from materials like those in a computer chip
How cells works

18. Demo – Solar Cells/Panels
Pass out solar cells
Pass out mini solar panels to show cells connected

19. Renewable
Energy
Solar Panel Usage

21. Solar Powered Motorcycle
Solar Powered Kayak
Solar Powered Electric Bike
Solar Powered Charger
Solar Powered Motorcycle

22. The Solar Sailor
Solar Powered
Underwater Vehicle

23. Lighted Kiosk Hilo, Hawaii Kona Gymnasium Kona, Hawaii
PV Solar In Hawaii
Renewable
Energy
Lighted Kiosk Hilo, Hawaii
Kona Gymnasium Kona, Hawaii
NOAA Whale Sanctuary
Kihei, Maui

24. Ford Island Building Pearl Harbor, O’ahu
Castle High School
Kaneohe, O’ahu
Nanakuli High School
Building A
Waianae, O’ahu
Ford Island Building Pearl Harbor, O’ahu

25. Hokule’a – Solar Panels

26. What are the Good & Bad things about Solar?

27. GOOD BAD Solar energy is free and unlimited
Basically no impact to environment
PV arrays are easily installed
BAD
No generators for PV
No water pollution
Sun doesn’t always shine
PV only 10% efficient as of 2007, so need lots of panels
No air pollution
Manufacturing cells uses up silicon and
makes some waste products.
Need converters and storage system for home use.

28. Activity – Solar Car
Solar Car Instructions