Wind farms: generating electricity for the home, pros and cons of generators, homemade installations

The reduction in the amount of available minerals is forcing humanity to seek renewable energy sources. One of them is the wind. Its mechanical strength proved to be sufficient to set in motion machine power generators. On this basis, wind farms have been created and are functioning.

Construction structure

The design includes several motion-driven air-flow generators, each of which consists of a large-blade impeller, a gearbox, and an electrical machine. All energy is transmitted through dedicated cables. The wind turbines are placed on very high masts for greater efficiency. Their location is always determined based on accurate calculations.. The relief, strength and prevailing wind direction are taken into account, after which the question of the payback of the installation is decided.

Home solutions

Today there are wind generators and power plants designed for individual use. They provide green power away from centralized sources. More powerful devices are suitable for electrifying large buildings or supplying energy to heating systems.

The correct choice is determined by several criteria at once:

• Load on the power grid at the moments of greatest consumption.
• Wind direction and speed.
• A taller mast increases the rotational speed of the blades.

Advantages and disadvantages

One of the benefits is environmental friendliness. This type of energy is environmentally friendly and truly inexhaustible. Its production does not harm the environment at all. Wind power plants for the home are distinguished by a simple design, because they can be assembled by hand. They also provide stable energy production that can be stored in batteries and converted to 220 volts.

But there are also disadvantages - this is an attachment to weather conditions. Unlike the sun, the wind blows irregularly. Large windmills for electricity make noise during operation. They also interfere with TV and radio equipment and flying birds.

Choosing the right device

You should focus on the energy consumption of all devices, as well as the maximum permissible wind force and speed. For example, a wind turbine with a power of 400 to 6400 watts will be able to provide power to a small house or store or similar structure far from the main sources.

Another feature of factory wind turbines for generating electricity is a very high cost, from half a million rubles to three.

There are also alternative devices that do not have some disadvantages. For example, vertical home wind farms are highly efficient and easy to install. Other advantages are resistance to strong gusts of wind and indifference to its direction, as well as protection from lightning strikes. Such structures do not spoil the landscape and do not interfere with the movement of birds.

Another interesting and highly promising solution is a sail generator. Its main advantage is its ability to work even in light winds. It is thanks to the sail that such a power plant quickly and accurately adjusts to the energy source, providing a more stable generation. She also features quiet and stable performance.

Homemade windmill

It can be done if the necessary materials and skills are available. To make a simple vertical generator you will need:

1. For the impeller - plywood, roofing iron or thin sheet plastic.
2. For the cross, steel strips or wood will fit.
3. The axle can be made from an iron pipe of a suitable diameter and length.

First, weld the metal crosspiece of the impeller to the upper end of the axle. Wooden can be glued or attached with pins. To make the blades, you will also need "cheeks" of a semicircular shape, which can be made from thin plywood, plastic or light metal. They need to put on the plates made earlier, and the joints should be smeared with oil paint.

The frame is made of metal or wooden corners attached to a rigid base, to which ball bearings are attached. The structure should be assembled carefully to avoid distortions. A pulley is attached to the lower end of the axle, through which rotation is transmitted to the generator itself. Its role can be played, for example, by an asynchronous motor with neodymium magnets built into the rotor. Such a windmill will provide power generation - up to 800 watts at a wind speed of about 9-10 meters per second.

In cases where it is necessary to provide a whole family with wind energy, several generators should be combined into one system, which also needs to be equipped with a backup source.