Geothermal Electricity
Most people are not aware of geothermal energy, how it works, and the role it will play in our energy future. Although it is one of the lesser known renewable energy sources it is still a viable alternative. In both the Philippines and Iceland nearly a quarter of all energy produced is geothermal electricity. These countries have shown that such systems are completely feasible and in fact quite efficient.
Electricity is generated by extracting water from underground which has been heated by magma. This water is then run next to pipes containing a fluid with a lower boiling point than the water. The water causes the fluid to boil turning it into a vapor which then powers turbines. These turbines are the source of geothermal electricity which is then used to power homes and businesses.
Here are a few geothermal energy facts:
Advantages of Geothermal Power
Only fuel is heated underground water thus its emission free Constant energy ensures large capacities can be met Heat extraction is negligible thus unending/sustainable energy source Land usage is extremely small Scalable depending on demand for geothermal electricity
Disadvantages of Geothermal Power
Vapor fluid is corrosive and hard to manage Fluid is kept at low temperature limiting heat engine production Small amount of carbon dioxide / sulfur emission Location could cool down after years of use depending of water reserve
Even though it isn’t as well known as a lot of the other renewable energy sources the future is bright for this innovative and efficient method of harnessing the power of nature to do work. Some technological advances in turbines could make these power plants even more efficient in the future.
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