Wind Energy

Wind Energy

Wind energy, is the energy generated by the wind and can be used directly or be transformed as electric power. You can apply this energy on a large scale, being one of the most productive renewable energies or in small installations. Wind energy is currently the fastest growing renewable energy and represents a large portion of the electricity production.

Wind Energy

Wind energy has a lot of potential and a great number of applications. The installation of an aerogenerator in a windy region, allows the production of electricity for a remote home, to pump water, or for any other isolated application for which electricity is needed.

At Soliclima, we install the most efficient and reliable aerogenerators in the market, that take advantage of low speed winds and are able of generating more electricity than conventional ones.

Aplications in Wind Energy

Sale of electricity

The experience with different types of renewable energies allows us to design and to orient an eolic facility, so that the greatest amount of energy can be sold. For that reason, we only use the best equipment and those that better adjust to the conditions of each installation. This way, we make sure we get the greatest performance, making the facility very cost effective.


Wind power pump

Pumping water by means of the20eolic system, just like the photovoltaic system, is the most simple and economic way to get water to farm lands isolated from the electric grid, using the most appropiate technology for agricultural development.


Rural electricity supply

At Soliclima, we think of and design the best isolated eolic facilities, so that you never are without electricity. For that reason, all of our individual facilities have an auxiliary generator group, for the times when there are several days without sun.


Wind energy seems to be the one that has the most future of all the renewable energies, along with solar energy. It can be used, like solar power, to generate electricity in remote areas, where connections to the power grid do not exist or it can be sold to the electric company.

Wind energy consists of generating electricity by means of wind mills that move a turbine. It is achieved through the kinetic energy produced by this movement. When the wind blows at double speed, eight times more energy is generated. The power of the generator is in function to the length of its blades, the greater the length, the greater power is obtained and consequently, more electricity is generated.

The size of the aerogenerators can vary, from units that start at 400w and blades with a diameter of 3 m. to commercial aerogenerators installed by large companies, such as Iberdrola, that reach 2.5MW of power and blades of 80m in diameter.

Soliclima only installs aerogenerators lets say, domestic, utilized exclusively to generate electricity for personal use of 400W to 3.2kW of power, that capitalize on low intensity winds.

Every aerogenerator needs a minimum starting speed, which is 11km/h for this type. It´s biggest productivity is with winds around 45km/h, but if the wind reaches 100km/h, they stop running automatically, to avoid damaging the unit

Wind energy park

The use of this type of energy is only applicable in very windy areas, with wind almost every day of the year and an average wind speed of above the forementioned of 11km/h, as the minimum for the aerogenerator to start working.

It´s quite common to combine this type of energy with photovoltaic solar energy, since the necessary weather conditions for both technologies are complementary. Sun and wind, together, are not usually combined very often.

Components of a wind energy installation

An aerogenerator, normally, has three blades conected to a rotor that activates an electric generator. That´s what we see placed at the top of the mast of a typical aerogenerator.

History of wind energy

To Charles F. Brush (1849-1929), one of the founders of the american electric industry, we owe the first electricity generating wind turbine. It was a giant of 144 blades made out of cedarwood. It functioned for 20 years and charged the batteries in the basement of his mansion. During WWII, a danish company began manufacturing bi and tri-blade aerogenerators and, in the 50´s, the first alternating current turbines were developed. The first oil crisis (1973) generated a real interest in eolic energy.

The generation of wind turbines of 55 kW of 1980, represented the technological and industrial boom for the modern aerogenerators.

Future

According to the plans for wind energy, the goal is to add an additional 12,000 MW between 2005-2010, which means 20,155MW of total power installed, by the end of 2010.

The wind energy goals per Community (Region) are very encouraging for this technology: Communities of Andalusia (4,000 MW by 2010), Catalonia (3,000 MW by 2010), Castille and Leon (6,700 MW by 2010), Galicia (6,300 MW by 2010), Castile-La Mancha (4,450 MW by 2011), Aragon (4,000 MW by 2012), Canary Islands (893 MW by 2010), and the Valencian Community (2,359 MW by 2010).

We can emphasize that wind energy is generated indirectly thanks to the Sun. The Sun heats the air and this causes the currents that generate wind. Wind is inexhaustible, and is renewed on a continuous basis. It does not cause any type of contamination. It can be obtained, in greater o smaller de gree, everywhere.

It is becoming increasingly less expensive, as the technology advances.

It allows progress without hurting the Earth, respecting the environment.

The facilities are easily reversible. It leaves no trace.

Wind energy advantages

We can emphasize that eolic energy is generated indirectly thanks to the Sun. The Sun heats the air and this causes the currents that generate wind. Wind is inexhaustible, and is renewed on a continuous basis. It does not cause any type of contamination. It can be obtained, in greater o smaller de gree, everywhere.

It is becoming increasingly less expensive, as the technology advances.

It allows progress without hurting the Earth, respecting the environment.

The facilities are easily reversible. It leaves no trace.

Other applications of wind energy

Another one of wind energy´s uses is the windmill. An aerogenerator is connected directly to a charge replacing its electric generator and its main function is water pumping.

These windmills consist of many blades, from 15 to 40, that get the most out of low speed winds. They start working with winds from 4,8 km/h up to 28 km/h, maintaining a constant rotating capacity, ideal to have a continuous amount of water, taking advantage of both, strong and weak winds and avoiding the need for large water tanks or towers.

 
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