August 14th, 2010 | 
Author: Vertical windmills are not such a new concept. In fact, despite that we’re accustomed to seeing horizontal axis windmills, the first windmills introduced were the vertical ones. The first effective types were invented in the 9th century, but their design has changed very much over time in order to get a higher efficiency from them.
Vertical windmills have several benefits. Among them is the low sound that they make. Horizontal windmills generally are very noisy, a fact that is proven by their settlements in non-populated or low populated areas with not so many habitats around. Because of their silent function, 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 more wind than horizontal windmills. Regardless of 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 form windmills.
A vertical windmill is easier to maintain. It’s also secured to do it, also. We owe this to the truth that the position of the generator is at the ground level. Because it is in such a helpful place and simple to repair, we save a lot more time & 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 safer and there’re least possibilities for birds to fly into its blades.
Vertical windmills could also have a highly anesthetic look, as they could be adapted to the adjoining area. They don’t have a pre-established pattern to pursue when building them. You could find them in a number of shapes.
The most common vertical windmills are the Savonius & the Darrieus. The Savonius windmill is mainly 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 electricity 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 beginning to become more and more expensive, but we’re also becoming more aware that many sources that produce it are affecting the environment. Start thinking at building your own vertical or even horizontal axis windmill so you can save money and help save the Earth in the procedure.
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