Different Geothermal Energy Sources

The areas in the world with the higher underground temperatures are regions with activevolcanoes. These “hot spots” occur at tectonic plate boundaries or where the earth’s crust isthin enough to let the heat through.

Generation of Electricity

Binary Cycle Plant

Hot Dry Rocks

Flash Steam Plant

Dry Steam Plant

Homegrown Energy

It is a renewable resource

Low maintenance charge

produces 4 times the energy that they consume

Additional capacity can be added to produce more power

Less area is required

Unlike solar energy or wind energy, it is not dependent on the weather conditions

There is no wastage or generation of by-products

Constant supply of energy

Positive Attributes

Demerits

High installation

costs

Danger of eruption of

volcanoCan be set up only in particular

regions

0

0.5

1

1.5

2

2.5

Geothermalsteam

Natural gas-combined

steam & gasturbine

Natural gas-steam turbine

Natural gas-turbine

Oil Wood Coal Biogas

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CO

2p

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CARBON DIOXIDE EMISSIONS per unit of energy produced

Comparison of CO2 emissions between conventional energy systems and geothermal plants to generate electricity.

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