2. GEOTHERMAL ENERGY
• “Geo” – EARTH, “Thermal” - HEAT
• The natural heat of the Earth.
• Originates from the original formation of the planet
(20%) and from radioactive decay of minerals
(80%).
• The heat that is used for geothermal energy can be
stored deep within the Earth, all the way down to
Earth’s core – 4,000 miles down.
4. ADVANTAGES of
GEOTHERMAL ENERGY
× Natural Source of Energy
× Environment Friendly
× Power Plant is Less Invasive
× Significant Cost Saving / Less expensive
× Reduce Reliance on Fossil Fuels
× High Load Factor
× Geothermal Power is Self-Sufficient
× Independent of the Weather
5. DISADVANTAGES of
GEOTHERMAL ENERGY
1. Not widespread source of energy
2. High Installation Costs
3. Longevity
4. Transportation
5. Hazardous Materials
6. Earthquakes
15. Geothermal plants around the
globe
• The world’s first
geothermal power station:
– Larderello, Southern
Tuscany, Italy
– Built in 1911
16. Geothermal plants around
the globe
• Larderello Worlds First
Geothermal Power
Station contributed to:
– Supplying power to a million of
houses globally.
– 5000 GWh yearly production
– 10% of the world's total
geothermal electricity
production.
Source: http://www.reuk.co.uk/Larderello-Worlds-First-Geothermal-Power-Station.htm
17. Geothermal Power Plants around
the Globe
1. Cerro Prieto Geothermal Power
Station
– largest geothermal power
station in the world
– Installed capacity of 720 MW
– plans for expansion up to 820
MW by 2012.
– located in south Mexicali,
Baja California, in Mexico, on
tati
and is built in five individual w er S
t o Po
units, namely CP1, CP2, ro Prie
CP3, CP4 and CP5. Cer
http://geothermal-powerplant.blogspot.com/2010/08/cerro-prieto-geothermal-power-station.html
18. Geothermal Power Plants
around the Globe
2. The Geysers
– largest complex of
geothermal power plants
located in Northern
California.
– Around 22 power plants
drawing steam from 350 wells.
– 1517 MW active capacity
West Ford Flat power
Big G
– Pacific Gas & Electric's Big eplant
yser p
lant
Geyser plant is the largest of
the individual units
http://en.wikipedia.org/wiki/The_Geysers
19. Geothermal Power Plants
around the Globe
3. Hellisheiði Power
Station
– largest geothermal power
station in the world
– in Hengill, southwest
Iceland
– As of October 2011, the
plant produces 303 MW of
electricity and 133 MW of . Helli
sheiði
hot water, with a target Power
S tation
capacity of 400 MW
20. Geothermal Power Plants
around the Globe
4. Wayang Windu Geothermal
Power Station
– In Pangalengan, 40 km
south of Bandung,West
Java.
– the largest geothermal
power station in Indonesia
al – utilizes two units, one with
du Ge otherm
Win 110 MW and the other with
W ayang ion
tat 117 MW, totaling the
Power S
installed capacity to
227 MW.
http://www.power-technology.com/projects/wayang-windu/
21. Geothermal Power Plants
around the Globe
5. Wairakei Power
r Station
owe
ei P
k
aira
W ion – lies in the Taupo Volcanic
t
St a Zone.
– First geothermal plant to
use very hot water as the
source of steam that is
used to drive the turbines
– efficiency of converting
heat energy to electrical
energy is 37%
