There are areas in Spain where the wind is constant, almost a daily routine. In these cases, why not take advantage of what nature gives you and install a wind generator in your home to be able to obtain free electricity? Well, if you want to save on your electricity bills or bring electricity where it does not reach, it is best to opt for one of these wind turbines that we show you.
Here you will learn everything you need to know about these devices. Also we will recommend some that you can buy, with easy installation, according to your needs.
Best wind turbines for the home
Amongst the best wind turbines that you can find for domestic use, we bring you a selection that stands out for its quality/price ratio:
As you can see, you can find wind turbines with different output voltages, such as 12V, 24V, 48V, and you also have them for 220V, with which you can power conventional devices.
What is a wind turbine?
Un wind turbine, also known as a modern windmill, is a structure that converts the kinetic energy of the wind into electrical energy. Below we explain the main parts that make up a wind turbine:
- Tower: It is the base where the blades are placed, raised to make the most of the wind. It can be small or reach up to more than 100 meters in large wind turbines.
- Gondola: At the top of the tower, it contains the electric generator, the multiplier and the orientation mechanism.
- Blades: They are designed to offer little resistance to the wind and to be able to generate the rotation necessary to produce energy.
How the domestic wind turbine works
El operating principle The operation of a domestic wind turbine is simple: it harnesses the kinetic energy of the wind to move its blades, which drives an electric generator that converts that movement into electricity. The main components that enable this are:
- Wind power: The blades of the wind turbine capture the kinetic energy of the wind and transform it into rotary motion.
- Multiplier: Increases the speed of the rotation axis, allowing more electricity to be generated with moderate winds.
- Generator: It converts this mechanical energy into electrical energy, using magnets and coils. The most efficient type of generator is the synchronous one.
- Distribution: Finally, the electricity is distributed or stored in batteries, depending on the system and subsequent use.
Types of domestic wind turbines: Which one to choose?
When we talk about wind turbines for the home, we can classify them into two large groups:
- Horizontal axis wind turbines: These are the most common and efficient. Their blades rotate perpendicular to the ground and need to be well oriented towards the wind to function properly.
- Vertical axis wind turbines: They are more compact and versatile in terms of location, as they do not require orientation and can operate in weaker winds. Their main advantage is their smaller size and proper integration into urban spaces.
Both systems have advantages and disadvantages, so the choice will depend on the wind conditions in your area and the space available for installation.
How to determine if you can install a wind turbine?
Before considering purchasing a home wind turbine, there are several considerations to keep in mind:
- Wind speed: It is recommended that the average wind speed in your area be at least 5 m/s for a wind turbine to be viable.
- Clear land: You will need a location with no obstacles blocking the wind, such as buildings or large trees. A prior study of the wind is essential.
- Local regulations: Check local regulations regarding the installation of wind turbines, as there may be restrictions regarding tower height or noise.
Advantages and disadvantages of domestic wind turbines
Like any system that generates renewable energy, wind turbines have advantages and disadvantages that should be taken into account before making an investment:
- Advantages:
- Reduction of energy bills.
- Generating electricity even at night or on cloudy days.
- An ecological system without emissions.
- Disadvantages:
- High initial cost of equipment and installation.
- Dependence on wind conditions.
- Possible annoying noises in some models.
How much does it cost to install a home wind turbine?
The price of a domestic wind turbine and its installation can vary greatly depending on the desired power and the conditions at the site. Smaller models of around 500 W can start at around €2.500, while more advanced units of up to 10 kW can exceed €10.000.
Additionally, you need to consider the cost of installation, which in many cases will require additional infrastructure, such as a sturdy tower and an energy storage system (batteries).
Maintaining a wind turbine at home
The maintenance of a wind turbine is not so demanding, but it is essential for ensure its long service life. It is recommended to carry out periodic checks every 6 months or at least once a year. The most common actions include:
- Cleaning the blades: They must be free of residues that could affect their efficiency.
- Lubrication of moving parts: This will prevent premature wear and reduce noise.
- Inspection of the generator and connections: Make sure the electric generator and connections to the distribution system are in good condition.
In short, installing a wind turbine in your home can be a wise decision if you live in a suitable area and are concerned about long-term energy savings, as well as significantly reducing your carbon footprint. This type of technology is increasingly affordable and efficient, making it an excellent option for self-consumption enthusiasts.