Adelaide Aquilla, Anne Kish, Adelaide Aquilla, Anne Kish, Walter Lempke, Katherine BarberWalter Lempke, Katherine Barber

o Geothermal energy- the energy Geothermal energy- the energy produced by heat within the Earth.produced by heat within the Earth.

o Geothermal energy can be found in Geothermal energy can be found in volcanoes, hot springs, and geysers.volcanoes, hot springs, and geysers.

o Geothermal energy is a green house Geothermal energy is a green house gas and does not produce waste.gas and does not produce waste.

Geothermal power plants are built in areas where the Earth produces hot water or steam.

Today, there are almost 150 geothermal power plants that are found in Iceland, Italy, New Zealand, and the United States.

Geothermal energy can be found in certain places around the world so therefore geothermal power plants can only be formed in certain places around the world

When heated water is taken When heated water is taken from the ground the rocks from the ground the rocks become very dry.become very dry.

The rocks may shift or break The rocks may shift or break causing tiny earthquakes.causing tiny earthquakes.

Workers have to be extremely Workers have to be extremely careful where they place careful where they place geothermal power plantsgeothermal power plants

In deserts they produce very In deserts they produce very little geothermal energy little geothermal energy because of the lack of ground because of the lack of ground water.water.

In the Netherlands they have In the Netherlands they have good design and engineering good design and engineering of geothermal wells.of geothermal wells.

People must drilling these People must drilling these wells must have supervision wells must have supervision on behalf of the client.on behalf of the client.

The maintenance and repair The maintenance and repair of geothermal wells and of geothermal wells and installations take a lot of time installations take a lot of time and money.and money.

One use is for heating homes One use is for heating homes and other buildings.and other buildings.

Also its used for generation Also its used for generation electricity.electricity.

To get the energy we use To get the energy we use geothermal pumps.geothermal pumps.

ItIt’’s a clean source of energy s a clean source of energy and does not run on fossil fuels.and does not run on fossil fuels.

Geothermal energy supplies Geothermal energy supplies less than 10% of the world’s less than 10% of the world’s energy.energy.

http://www.clipsyndicate.com/video/play/749946/geothermal_energy_routed_into_home

In the United States, most In the United States, most geothermal reservoirs are in geothermal reservoirs are in Nevada and California.Nevada and California.

Almost everywhere that has Almost everywhere that has shallow ground or upper 10 feet shallow ground or upper 10 feet of the Earth’s surface maintains of the Earth’s surface maintains a nearly constant temperature.a nearly constant temperature.

The temperatures are in The temperatures are in between 50°F and 60°F between 50°F and 60°F (10°Cand 16°C)(10°Cand 16°C)

It can easily be found along the It can easily be found along the “Ring of Fire”“Ring of Fire”

Boreholes: a heating system to Boreholes: a heating system to get geothermal energy.get geothermal energy.

Ground source heating pump, for Ground source heating pump, for heating heating

BTES and heat pump for heating BTES and heat pump for heating and limited a cooling system and limited a cooling system

Aquifer Thermal Energy Storage: a Aquifer Thermal Energy Storage: a cooling/heating systemcooling/heating system

Cooling only not for heatingCooling only not for heating

Charges in cold or hot water Charges in cold or hot water

Heat pump for heating in the summerHeat pump for heating in the summer

Has a cooling and heating pump also used for Has a cooling and heating pump also used for heating heating

ATES stands for aquifer thermal energy storageATES stands for aquifer thermal energy storage

High temperature ATES/BTES (the pilot stage)High temperature ATES/BTES (the pilot stage)

Is a direct heating system by storage of waste Is a direct heating system by storage of waste heat.heat.

Some foreign firms that are joining forces with Some foreign firms that are joining forces with the US companies that specialize in geothermal the US companies that specialize in geothermal energy storage are discussing the ATESenergy storage are discussing the ATES

Geothermal energy is heat stored within the Geothermal energy is heat stored within the Earth.Earth.

The center of the Earth is a core made of The center of the Earth is a core made of molten metal.molten metal.

The temperature at the Earths core is at least The temperature at the Earths core is at least as hot as the surface of the sun.as hot as the surface of the sun.

This is hot enough to melt the surrounding This is hot enough to melt the surrounding rock, turning it into magmarock, turning it into magma

Then the magma rises to the surface and heats Then the magma rises to the surface and heats the ground.the ground.

Disadvantages Disadvantages

A disadvantage of geothermal energy A disadvantage of geothermal energy is it is expensive the price is $1, 500 to is it is expensive the price is $1, 500 to $3,000$3,000

Fun FactsFun Facts

Geothermal energy is gathered by a tube.Geothermal energy is gathered by a tube.

To gather and store geothermal energy it To gather and store geothermal energy it usually costs 1,150 -3,000.usually costs 1,150 -3,000.

The amount of energy gathered is very The amount of energy gathered is very little compared to other energy sources.little compared to other energy sources.

It is renewed by all of it resources.It is renewed by all of it resources.

Why can you not have a geothermal power Why can you not have a geothermal power plant in the desert?plant in the desert?

Because there is not a good supply of ground Because there is not a good supply of ground water.water.

What is a borehole?What is a borehole?

A heating system to get geothermal energy.A heating system to get geothermal energy.

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