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Vertical windmills aren't a recent idea. Actually, regardless of that we are accustomed to seeing horizontal axis windmills, the first windmills invented were the vertical ones. The first functional types were invented in the ninth century, but their design has changed a lot over the years to obtain a higher effectiveness from them.

Vertical windmills have a number of advantages. One of them is the low sound that they make. Horizontal windmills generally are very noisy, a fact that's proven by their settlements in non-populated or low populated places with not a lot of habitats around. Because of their silent work, vertical windmills are most of the times used by humans for their homes, cities or commercial buildings.

Another benefit that vertical windmills have is that they can capture additional wind than horizontal windmills. No matter the direction from which the wind blows, vertical windmills can catch it and convert it into energy. We can not say the same about the horizontal axis type windmills.

A vertical windmill is easier to maintain. It is also secured to do it, too. We owe this to the truth that the location of the generator is at the ground level. Since it's in such a helpful place and uncomplicated to repair, we save more time and energy when we give it maintenance or when we fix it.

Using the vertical windmills' design also brings benefits for the birds. Birds sometimes fly into the horizontal axis windmill. From this point of view the vertical axis form is secured and there're minimal chances for birds to fly into its blades.

Vertical windmills can also have an extremely anesthetic look, as they could be adapted to the surrounding area. They do not have a pre-established pattern to pursue when building them. You could find them in many shapes.

The most common vertical windmills are the Savonius and the Darrieus. The Savonius windmill is mostly used for pumping the water or for grain grinding. If you consider it from above, you notice that its shape is the one of the letter "S". Contrary to the Savonius, the Darrieus windmill is used for generating electrical energy and not for pumping water. Its blades are in model of the letter "C", providing it the aspect of an eggbeater.

We are living in a world where the electricity is not only beginning to become increasingly more expensive, but we are also becoming more aware that many sources that produce it are affecting the environment. Begin thinking at building your own vertical or even horizontal axis windmill so that you can save money and help save the Earth in the process.

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