02/04/2014 - 14:53
Renewable Energy Development Institute - REDI

One of the ways to make a good use of renewable energy sources is the construction of wind power stations. They work thanks to the rush of wind which makes the wind turbines operate and in this way generate power. The electric current obtained from the wind power is believed to be ecologically pure, but in fact it causes some changes in the environment. Thus, constructing such power stations arouses controversy. Is it then a good idea to invest in wind parks or maybe the profits they would generate are just a wild goose chase?

Adherents of wind power stations are convinced it is a perfect ecological solution since the stations do not emit harmful substances to the air while generating the power which takes place in case of conventional coal-fired power stations. Moreover, the wind power stations can generate electric current in the areas where it is impossible to have line current. They are also considered as more ‘aesthetic’ in comparison with fuming chimneys, which makes them look nicer to the eye. The electrical current generated with the use of wind does not involve the risk of its cost increase, which is another thing to the benefit of these unconventional power stations.

The objectors to wind power stations put forward counter arguments. Most of all, they emphasize the fact that the wind power is not a constant value, so it is hard to predict what quantity of power can be generated a day. Another thing is that wind power stations take quite a lot of space to be built, so they shall be placed in uninhabited areas, out of the cities and towns. Moreover, the turbines make a lot of noise thus the nearby residents may find the operation of a windmill quite bothersome. Also the infrasounds and the visual effect of shadows flashing by are harmful to the human health. Wind power stations endanger wildlife as well, mostly birds, bats and marine animals.

Nowadays, wind power stations are built in Italy, Canada, Great Britain, Portugal and some other countries. On the European market the leading country in wind power industry is Germany. It was in 1990s when wind power industry developed in Poland. Its heyday, however, took place in the first years of the next millennium when the wind farms in Malbork, Inowroclaw, Tychow or Fagow were created thanks to the growth of budget for such investments.

Power acquisition with the use of wind can be a good solution provided that all the problems related to the localization of the stations will be solved. Thus, using the horizontal air masses is not a wild goose chase at all.

People are forever trying to find new sources of renewable energy, so it isn’t surprising that they are especially interested in water and its versatility. Accordingly, much effort has been directed into obtaining energy from tidal and wave power, which are defined as circular movements of water molecules caused by wind that moves water surface through friction.