The geothermal energy of the earth can be put to several uses. It can be converted to useful electrical energy. This is called geothermal power. Geothermal power can be applied in many ways.
One application of geothermal power is the geothermal cooling system. This takes advantage of the fact that the ground remains cooler than the surrounding atmosphere during summers and it remains warm than the surrounding atmosphere during winters. It keeps the buildings cool during summers.
It is important to understand that geothermal cooling systems do not produce heat or cold. They just transfer heat from one place to another. A geothermal cooling system consists of pipes, delivery system and a heat exchanger unit. The heat exchanger unit is installed in ground near the building. During a hot summer day, a refrigerant or water flows through the system down into the earth through pipes. Inside the earth, the water is cooled and then transferred back to the delivery system. The cool water circulates through the home and absorbs the heat. This causes it to get heated up. Once it gets completely heated, it is piped back into the ground for cooling.
The configuration explained above is the simplest one for a geothermal cooling system. Other geothermal cooling systems have been developed that work on better technologies.
The use of cooling systems that work on geothermal power can reduce the electricity bills by a significant amount and also are very efficient and reliable. Geothermal power used in these systems is a renewable source of energy that will always be available.