Monday, December 3, 2007

Top 5 Advantages of Geothermal Power



Part of a series


5. You can have one in your backyard.
The cost of having a geothermal system in, literally, your backyard, for a 4,000 square foot house is estimated to be $15,000 to $20,000. The payback would only take 5 to 10 years, as well. [reference]

4. Maintenance costs are low
Geothermal pumps have very few parts and require very little maintenance. Once up and running, the system can be mostly left alone to produce energy without the need to repair parts of the system.

3. The amount of land needed is low
Unlike nuclear power plants, wind farms or solar farms, a geothermal pump does not require much land. Like mentioned in #5, if you live in a suburb, you could install one in your backyard tomorrow. Larger pumps for commercial electricity generation have also been built, and those too require very little land.

2. Energy output is unaffected by changing weather conditions
Unlike wind power or solar power, there will always hot magma under the surface of the Earth. It’s predictable when one source is cooling down. You can’t predict when the wind is going to stop blowing.

1. It’s renewable
This is pretty self explanatory. Geothermal power produces no greenhouse gases, except in production of the machinery and in any possible maintenance.


The are only benefits. We haven’t talked about disadvantages. Why? Because there are very few. The three most common are:
1. They produce greenhouse gases during production and maintenance (though very few).
2. They could affect their surrounding environment (but they take up very little land).
3. If a system is too large for its site, the energy could dry up (so don’t make them too large…).


More Alternative Energy Series:


Why Corn Ethanol is Bad
The Temporary Solution: Coal
Nuclear Power: Energy of the Future or As Bad As Fossil Fuels
5 Reasons Solar Power Works
The Wind Power and Solar Power Combination
Another Look at Nuclear Power - Nuclear Waste
What's So Special About Hydropower and Hydroelectricity?
Top 5 Advantages of Geothermal Power


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