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Vertical windmills aren't a recent idea. Actually, despite that we are accustomed to seeing horizontal axis windmills, the first windmills invented were the vertical ones. The first effective types were invented in the 9th century, but their design has changed a lot over the years to obtain a higher efficiency from them.

Vertical windmills have a number of advantages. Among them is the low sound that they make. Horizontal windmills normally 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. Due to their silent work, vertical windmills are most of the times used by humans for their homes, metropolitan areas or commercial buildings.

Another advantage 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't say the same about the horizontal axis type windmills.

A vertical windmill is easier to maintain. It's also safer to do it, too. We owe this to the reality that the location of the generator is at the ground level. As it's in such a handy place and uncomplicated to repair, we save more time & energy when we give it maintenance or when we repair 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 are minimal chances for birds to fly into its blades.

Vertical windmills could also have a highly 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 several shapes.

The most common vertical windmills are the Savonius and the Darrieus. The Savonius windmill is largely used for pumping the water or for grain grinding. If you look at 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 power and not for pumping water. Its blades are in model of the letter "C", providing it the aspect of an eggbeater.

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

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