1. How is ocean wave energy nowadays used in Japan?
Yousuke Kouchi

2. Wave energy Peculiarity ◎energy per area is high !! <comparison>
20~30 times of solar energy
5 ~10　times of wind energy
◎Generation effect change by environment .
◎Easy to do a prediction of the quantity of generation.

3. Nowadays used in Japan Wave activated generation 3types
Convert to air energy
Convert to mechanical energy
Convert to potential energy of
the water
Many Researcher research wave
activated generation system now.

4. Wave activated generation
Mechanism of the generation
Wells Turbine
Air flow
Air room
Incoming waves
Dilatational wave
Wells Turbine
Air flow
Air room
Example
"Mighty Whale”

6. But･･･ It does not spread in Japan. Because ・・・ ◎ It need high cost .
◎　Consideration of the safety is difficult.
◎　Harm a scene.

7. Conclusion Wave energy used to Generate electricity in Japan.
But wave activated generation has a lot of demerit .
Therefore it does not spread in Japan.
If wave activated generation improve these demerits,
it is difficult to use wave activated generation.
We struggle these demerits.

8. End References ◎http://www.glocom.ac.jp/eco/esena/resource/hirose/
◎GREEN　ELECTRICITY ◎