What is Green Energy?

By Jerry Dyess

When you hear the phrase "green energy", what do you think of? Fields of windmills in the Midwest or suburban rooftops covered in solar panels? Maybe when you think of green energy you think about things that may not seem too practical or economically efficient. The fact is, just because something is green does not always mean that it has to be new or expensive.

A renewable energy source that is safe for the environment and does not emit harmful emissions is considered green energy. These energy sources include more than just wind or solar energy; they also include hydroelectric and geothermal power. Let us look at these sources of energy and why they are considered green energy.

Solar energy is well known and is still in the early stages of development. We may see solar power everywhere before long. Many advances in technology have been made when it comes to solar power. Solar power is still seen by most to be out of reach financially and not efficient enough to justify the cost. The difficulty in maintaining a solar energy system is another reason many people do not consider using it. As solar power grows, however it may well become a preferred option for many people.

Wind power has actually been around for hundreds if not thousands of years. When people think of energy most of the time they are thinking of electricity, but any energy that makes things move or build up pressure is considered energy production or harvesting. Windmills were the first form of wind energy collection, and the modern equivalent are just as effective at producing electricity as their predecessors were at grinding flour. In fact, windmills are one of the least maintenance intensive source of energy, especially in what is known as the wind belt. The country's largest wind farm is located in Texas, utilizing miles, and miles of windmills to produce clean Texas energy.

Geothermal power is harder to understand. The temperature underneath the ground stays the same, this knowledge can help us heat and cool our houses and businesses. We can harness this energy by using thermal rods to run this air into the home. You would never have to run an air conditioner or heater again. Volcanoes are buried underneath the ground in some areas. Steam and pressure is the result of volcanic activity and this produces energy. This type of energy can be harnessed and used all over the world.

Hydroelectric is a green energy when used on a small basis, as it does not change the land or water in a big way to operate efficiently. A huge hydro plant is not green because they need to make big changes in the land and water to operate on a large scale. This will cause permanent unhealthy changes to the land for many years, which is why they are not thought of as green.

There are other types of green energy as well, but none of those technologies are developed to the point of being implemented. However, when connected to the conventional power grid, green sources of energy can supplement our reliance on other, dirtier energy sources, gradually helping us make less of an impact on the delicate balances of our planet. - 29939

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