What can Japan do to increase the use of geothermal energy in the

What can Japan do to increase the use
of geothermal energy in the future?
Number : 11780029
Name : Osamu Urushisaki
The merit of geothermal energy
• Little of CO2 emissions
The amount of CO2 emission (㎏/MW-hr.)
• Height of an operating ratio
800
700
1/6 time
The operating ratio (％)
600
500
400
90
300
80
200
70
60
100
50
0
Coal Oil Natural gas Heat of the earth
40
30
20
10
0
Heat of the earth Atomic power Coal fire power Wind force Sunlight
The demerit of geothermal energy
• Discharge of H2S (hydrogen sulfide )
• The abandonment method of geothermal fluid
• There is also a possibility that heat may finally
be exhausted in some geothermal zones
• A setting position is limited
The No.1 geothermal energy
development area of the world
United States
• The country which exploits geothermal energy most in the world
• There are 77 geothermal power plants
• Boiling water is used in farmland or urban areas
Iceland
•
•
•
•
•
About 100% renewal energy
Power generation(water-power:70%, geothermal:30%)
There are 25 or more active volcanoes and many hot springs
A capital is world leading "a town with clean air "
Geothermal water is used at various places
The way to the expand in Japan
A problem of Japan
• Construction cost is high
• There is regulation of national parks
• Understanding of the hot spring industry
cannot be obtained
If it is solvable, Japan could ・・・
United States
Iceland
⇒
⇒
A large-scale geothermal power plant
Exploitation of natural power sources is high
Thank you for your attention!

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