Why are tests for Home Wind turbines so important?
In contrast to solar power plants, small wind turbines are subject to high mechanical stress. The natural force of the wind is violent at high speeds, since the power of the wind increases disproportionately with increasing wind speed. Extreme wind peaks occur rarely, but are likely to occur over an operating period of 20 years and represent the baptism of fire of a wind turbine. The safety of the plant must also be ensured in storms.
Wear and fatigue of components, as well as design flaws often only become visible during the longer operation of a small wind turbine. With an investment calculation over a usual period of 20 years, it will only be possible to calculate reliably if expensive damage or the complete replacement of the wind turbine is avoided. Data on the quality and performance of a wind turbine are obtained through tests.
In the US there is no prescribed quality label for small wind turbines. The CE mark does not help here. Wind turbines of questionable quality appear on the market time and again.
Assistance with the purchase of a small wind turbine
Before buying a small wind turbine, the prospective customer needs an objective proof of quality of the wind generator. Especially if several thousand or ten thousand Dollars are spent on the plant. We, Tidyingup, as well as trade journals have published test results of solar systems or wood pellet boilers. Tests on mini wind power plants are sought in vain, yet.
No wonder, since the tests are very time-consuming and financially expensive. A consumer-friendly and clear presentation of the most important test results is also important. Extensive test documents peppered with technical terms are too complicated for the layman.
Only if the same test conditions were used as a basis, different wind generators can be compared with each other. The comparison of the nominal power of individual wind generators, for example, only makes sense if the same wind speed was used as a basis.
Even if the rated output of turbine A and turbine B is the same, the performance can be very different if turbine A reaches the rated output at 9 m/s wind speed and turbine B reaches the rated output only at 12 m/s.
Important criteria for technically high-quality manufacturers
Small wind turbines are wind generators that fall below a power of 100 kw. According to this definition, more than 200 models are offered on the US market. Among these models are small wind turbines from US manufacturers as well as from foreign producers. Each prospective customer should inform himself in advance about the advantages and technical characteristics of the wind generators in order to acquire the small wind turbine that suits his needs.
Under this performance definition not only small wind turbines in the private domestic area, but also generators, which are set up on sailing ships or in the range of the agriculture, fall. In contrast to this are the large wind power parks, which are built by the leading manufacturers of the large-scale industry. Unfortunately, different quality standards apply to these large wind farms, which is why you should take a close look at the products, especially with the small wind turbines. A few criteria are very helpful. First, you should check whether the small wind turbines have certificates. There are recognized certifications and seals of approval that provide evidence of good quality.
Unfortunately, this certification is not required by law, which is why there are many dubious offers and unverifiable and unrealistic advertising promises by manufacturers to promote sales of the turbines. With the manufacturers you should pay attention to how long the company has been active on the market. Companies with longer experience stand for successful production. If there is a comprehensible further development of product series, this speaks for a continuous improvement process of small wind turbines.
The sales figures also speak a clear language. Whoever sells a lot of wind generators will certainly also deliver good quality and technically sophisticated systems. Word of our success gets around and is of course also reflected in our sales figures.
Also the successful operation of small wind turbines on test fields is a positive reference. These test plants finally prove the functioning and performance of the small wind turbines in real operation.
Best Home Wind Turbine Overall: Primus Wind Power Air 40 Wind Turbine
- Best quality carbon filter blades
- Fast spin, even at low winds
- Stays stable & tight in high winds
- Just the price, but the quality is worth it
- Best Overall Performance – Best Energy output
- Perfect for off-grid living
- High Quality, self-regulating wind turbine made in the USA
- Just the price, but quality always costs..
For a variety of factors we selected the Primus Wind Power Air 40 Wind Turbine as our best overall pick. What we find most relevant in wind turbines is the performance of design and this home wind turbine is at the top of the class. It is assembled with carbon filter blades and contains largely weather-resistant parts.
We find the blades to be extremely superior to other wind turbines we tested because they are so hard-wearing that there is no issue for the maker to promise them a lifetime. This is a functionality you certainly won’t notice on certain Chinese-made ones. These are designed and imported from America.
The Primus Wind Power Air 40 Wind Turbine II has eleven blades in total with a wide surface area built to get the maximum spin even at low wind speeds while catching winds. Being heavier than other versions, this machine takes a lot longer to avoid spinning as wind strength decreases and is equipped with a cam lock to avoid spinning loose from the assembly from blades in strong winds. It is a self-regulating, US-made wind turbine!
You should expect outstanding customer support as a renowned American brand, with high-quality parts and design. Only expect the finest from Primus Wind Power Air 40 Wind Turbine.
2nd Best Home Wind Turbine: TESUP ZEUS 3.0 Wind Turbine Kit
- Great Blade Quality
- Awesome for low winds
- Minimum noise & vibration
- Hard to understand instructions
This specific device is in fact a home wind turbine package. Advertised as suitable for low wind speed environments, the TESUP ZEUS 3.0 Wind Turbine Kit is designed with proprietary blades and an aerodynamic architecture guaranteeing optimum strength and reduced noise and vibration. The blades on the TESUP ZEUS 3.0 Wind Turbine Kit are made of strengthened fiberglass, which is lightweight and engineered to achieve a 2.5 m / s rated low cut-in speed.
We also like the fact that there is an MPPT controller in this model too. The sensor is used to monitor the turbine in real time, and to capture voltage and current at peak production. The goal is to ensure optimum performance during the charging process of the batteries. The MPPT is mentioned as controller for “wind boosting.”
The package contains scissors, a nose-cone and the MPPT unit, along with the generator. TESUP ZEUS 3.0 Wind Turbine Kit dump loads range from 300w to 5kW.
3rd Best Home Wind Turbine: MEIGONGJU AC12V 24V Wind Turbine Generator
- Protection against strong gusts of wind
- Fit for off grid living
- Made of fiberglass & polypropylene
- Not many features
- Only AC 12V or AC 24V
Even though we rate this in third place among all the home wind turbines we’ve tested, this is a highly common model among homeowners in the US. Even the MEIGONGJU AC12V 24V Wind Turbine Generator comes with an auto-braking option along with an MPPT unit. This is included to defend against such voltage spikes, extreme wind levels and heavy wind gusts.
The explanation why this specific device is so common today is because it was initially meant for off-grid living, which in recent years has been massive in the United States. This package is just about everything and anything you’ll need to install the turbine as a stand-alone device for wind power generation.
The MEIGONGJU AC12V 24V Wind Turbine Generator is constructed of the best grade polypropylene and fiberglass. To shield it from the weather, all components have been specially coated with UV-resistant shielding. Amp meter, brake button, and MPPT controller are included in the package.
Kits with MEIGONGJU Wind Turbine Generator vary from a maximum performance of 300W to 1500W. This specific model is as popular with us as it is with customers, who have had the privilege to experience and build this MEIGONGJU AC12V 24V Wind Turbine Generator.
4th Best Home Wind Turbine: Outdoor Water Solutions Large Bronze Powder Coated Backyard Windmill
- Possible to add solar panels to it
- Blades are made from strong reinforced glass steel
- Self-tuning, adjusting to wind direction
- Doesnt give you a lot power
Here’s another home wind turbine package, along with the associated braking system, which comes with an MPPT control. What we particularly like about the Outdoor Water Solutions Backyard Windmill Home Turbine Package is that you can connect it to solar panels to produce full performance , especially when winds are unfavorable for electricity production. This model is often referred to as the Backyard Windmill, but it’s built of die-cast aluminum with blades made of tempered glass plastic, no matter what it’s called.
Another fantastic aspect is the tail which comes with the kit. This means the machine is self-tuned so it dynamically transitions to catch the winds from the way they are flowing. The Backyard Windmill is equipped with a 3-phase AC magnet for permanent smooth power generation.
Easily obey directions for DIY assembly provided in the package. The pieces are the generator, wind turbine, charge controller and the all-important manual for DIY assembly and installation.
5th Best Home Wind Turbine: Pikasola Wind Turbine Generator
- Fit for off grid living
- Affordable price
- High quality, made in USA
- Not the greatest power output of the tested home wind turbines
The Pikasola Wind Turbine Generator ranks fifth among the wind turbines that we have tested. We find the design to be lightweight, and thus simple to build and mount. We like the controller in particular which is really user friendly.
If you want to know how much electricity you can obtain from wind, the Pikasola Wind Turbine Generator40 will deliver a maximum of 40kWh / month at wind speeds of just around 13 mph on average. Thanks to the quality of the robust blades, which are also designed to deliver quiet activity, wind capture is maximised.
The advanced features that we liked about the Pikasola Wind Turbine Generator are electronic torque regulation for overspeed safety and we like the smart microprocessor controller too.
This specific Pikasola Wind Turbine Generator is suitable for producing off-grid electricity, since the frame is cast aluminum with a total of three lightweight blades. Lastly, Pikasola Wind Turbine Generators are built in the USA. You should demand the finest standard of materials and craftsmanship as an American-made wind turbine and we are proud to include another fully American-made product among our top five best home wind turbines.
Contents of the tests
Especially the following test results of a small wind turbine are important:
- Output and annual power yield
- Peak load (storm testing)
- Permanent load
Of crucial importance is the determination of the power curve of a wind generator. The power curve indicates at what wind speed the turbine starts to rotate, when the nominal power is reached and when the turbine switches off for safety reasons in very strong winds.
The power curve can be used to determine the annual electricity yield. As a characteristic value, the annual electricity yield is more meaningful for buyers than the power curve. It is important to show the annual electricity yield at realistic average annual wind speeds. A good inland location up to 30 m rotor height has an average annual wind speed of about 4 m/s, a good coastal location about 5 m/s.
Some manufacturers state annual power yields for wind speeds that are far too high for most small wind sites in the US. There is no clear dividing line between calculating and deceiving consumers.
How does wind become electrical energy?
For thousands of years people have been using the power of wind. They hoisted sails to propel ships or operated windmills to grind grain. Today’s wind turbines or wind power plants work in a similar way, because at up to 200 meters, they are only much higher and their rotor blades are not made of sailcloth or wood, but of steel or glass-reinforced plastic. Such plants are up to 90 meters high and weigh 25 tons or more.
Ideally, the turbines are located where the wind is strong and constant: at greater heights or at sea, the electricity yield is highest. The rule of thumb: with every meter that a wind turbine is higher or is built, the electricity yield increases by 1 percent. If the length of the blades is doubled, the wind turbine achieves four times the yield. Twice the wind speed increases the yield eightfold.
And this is how it works: the wind turbine takes the power contained in the wind from the rotor blades via its rotation and initially converts it into mechanical energy. The generator converts this rotational energy into electricity and feeds electrical energy into the power grid.
What types of wind turbines are there?
Apart from the wind force, the decisive factor for the yield of a wind turbine is the design and arrangement of the rotation axes for all rotor blades. Basically a distinction is made between:
Drag rotor and lift rotor: Influenced by the aerodynamic principle that sets the rotor blades in motion, a distinction is made between drag and lift rotor. The resistive rotor system uses the flow resistance of the air, whereas a lift rotor uses aerodynamic lift.
Horizontal and vertical axis rotors: These types of Best Home Wind Turbines offer differences according to the arrangement of their axis of rotation of the wind power converter. In most modern wind turbines, but also in old windmills, the axes are aligned horizontally.
These Best Home Wind Turbines make efficient use of the aerodynamic lift principle, because the blade angles offer adjustability in alignment. Wind turbines with vertical axes, on the other hand, are independent of wind direction. Their rotor blades turn more slowly.
High-speed and low-speed rotors: The aerodynamics of the rotor and the associated high speed number (ratio of the circumferential speed of a blade tip to the wind speed) are divided into high-speed and low-speed rotors. The modern three-bladed wind turbines are fast runners, an American wind turbine or Dutch windmill slow runners.
Today, Best Home Wind Turbines are approved for different wind classes. The IEC 61400 is an internationally accepted standard. In the US, the classification into wind zones (areas with strong or weak wind) applies. The rotor diameters of low-wind turbines are generally larger than those of strong-wind turbines.
Build the Best Home Wind Turbines yourself: Where is it worthwhile to build a wind turbine?
In order to assess whether electricity can be generated economically with a Best Home Wind Turbine at a certain location, the so-called average wind speed (average value of the wind speeds occurring over the year) is used. As a rule of thumb, operation is economical from an average wind speed of 5-6 m/s at hub height.
For the estimation of the annual yield, however, other factors must be taken into account. Various calculation programs on the Internet can help here. With them at least an approximate value for the possible yield can be determined after entering different conditions.
If you want to know more, you can order a wind report for the respective location. This includes the actual wind measurements at the site, local buildings and vegetation, topographical conditions and, if necessary, neighbouring wind turbines in the calculation.
Building requirements: What is to be considered?
Anyone who wants to install wind power plants needs a building permit (wind power plants for single-family homes). When submitting the application, the potential builder-owner submits an excerpt from the land register including detailed site descriptions to the responsible building authority.
Minimum distances to neighbouring properties must be observed. If the Best Home Wind Turbine is to be installed in a densely populated area, a noise certificate must be prepared.
The approval guidelines provide differences depending on the federal state. It is advisable to ask the responsible building authority in advance for the necessary documents and requirements.
Maintenance and servicing of wind power plants
Best Home Wind Turbines require regular inspection and maintenance. This is the only way they can guarantee safe and efficient electricity production in the long term. For normal locations, a maintenance interval of two years is recommended. Extreme locations (for example at sea or at extreme altitudes) should be inspected twice a year.
Careful maintenance includes the following work:
- (Visual) inspection of all components (including the tower) for corrosion, mold and other abnormalities
- Testing of all components for functionality and tightness
- Checking the torque on screws
- Check the oil levels and top up if necessary
- Changing all filters
- Checking the laser alignment
- Inspection of the drive train
- Cleaning and adjustment of the brakes
Most Best Home Wind Turbines are designed for a service life of 20 years. The newer turbines offer a service life of 25 to 30 years. If this age is exceeded, the plant is either dismantled or replaced by larger and more modern plants. The latter is called repowering in the technical jargon and may make sense even before the end of the design life.
This is because the new plants generally operate more quietly and efficiently. With them, maintenance costs can be significantly reduced and higher yields can be generated. Often they also fit better into the landscape. However, wind power plants can also be in operation beyond their certified design life, provided that their operational safety has been verified by an expert opinion.
Possible wind power plant modifications: for energy generation
- Offshore wind farm (such a wind farm is worthwhile for larger companies that rely on renewable energies)
- Hydropower and wind power combination plant
- Small Best Home Wind Turbines in meteorology
- Solar energy and wind power in combination
Buy a wind turbine / buy a wind turbine: How much does a wind turbine cost?
Best Home Wind Turbines costs: The general conditions for renewable energies and thus wind turbines in the US have never been better: more efficient plant technologies, improved production processes and the manufacture of higher quantities are driving down manufacturing costs. The price for manufacturing, assembly and installation of the Best Home Wind Turbines is calculated per kilowatt of installed capacity.
At the beginning of the 1990s, it was 1,260 Dollars, in 2004 it was only 890 Dollars per kilowatt. In the meantime, the prices for Best Home Wind Turbines have continued to fall. In the meantime, construction and assembly, including acceptance, cost 600 to 870 Dollars per kilowatt of installed capacity.
Wind turbine test and further information
When buying the Best Home Wind Turbines, the quality and performance of the components should be the first priority. A serious wind turbine test helps to find the right turbine. Important here are analyses by experts who use their specialist knowledge to check whether the product can withstand the high demands of a wind turbine. Representative and neutral, as well as objective checks are accordingly in a high-quality wind turbine test.
Dubious tests offer no added value and have poorly researched accumulations of apparent facts that do not survive assessment. Unfortunately, such alleged test sites are appearing more and more frequently, which the interested party should refrain from.
In our comparison you will find Best Home Wind Turbines test, but a guide with helpful information about wind turbines.
What consumers should pay attention to when buying a small private wind turbine
Below is a small checklist:
- Is the wind strong enough? If you want to buy a mini wind turbine, first check the wind conditions on your own property.
- Coordination with the building authority and neighbors: Even a small wind turbine depends on the approval of the building authority and, of course, the neighbors.
- Check the noise level before purchase: Small Best Home Wind Turbines today are generally equipped with optimized blade aerodynamics and sophisticated control technology and operate quietly. Nevertheless, it is worth trusting your own ear.
- No feed-in, only own consumption: With a small wind turbine only the own consumption is economical. This is because it lowers the power consumption of the supplier, who calculates the current electricity price.
- Wind power plant Installation / No installation on the roof of your own house: Because wind conditions there are often turbulent. For small wind turbines, it is recommended to install the wind turbine in the garden, on a ground mast.
- The trend: Best Home Wind Turbines with horizontal rotor axis, because horizontal small wind turbines work more efficiently than those with vertical rotor axis. The latter are also called small wind turbines vertical or vertical wind turbines.
- Solar power plant plus small wind turbine: Solar energy and wind energy complement each other optimally in terms of energy supply. This is because a battery charged jointly by sun and wind can be designed smaller.
- Check the information provided by the manufacturer or seller: It is advisable to obtain independent information before buying and, if possible, to get a picture yourself: If the plant is already set up at another place, the inspection is worthwhile on a wind-strong day and a discussion with the operator.
Which brands offer Best Home Wind Turbines?
There are different brands that offer wind turbines that are in demand. In the wind turbine list 9 manufacturers are compared. The following companies are among them: Tumo Int Corporation Ltd, ECO-WORTHY and MAKEMU Energy.
Warranty of Best Home Wind Turbines
Best Home Wind Turbines guarantee has been prescribed by the state and therefore cannot be avoided by the producer. In addition, the buyer is free to return the purchase unpacked within a certain time window and a certain period of time, usually without any difficulties. Here it applies to consider whether the buyer or salesman carries the forwarding expenses. In particular Amazon is considered to be an extremely pleasing company. Uncomplicated, the service is available to help with all aspects of returning ordered items, even if the shipment was not made directly by Amazon. Users can contact the support team via mail, phone and chat.
Conclusion on Best Home Wind Turbines and Best small wind turbines
The global market for wind turbines, whether wind turbine or wind turbine for the single-family house, is constantly on the move and is difficult for potential buyers to keep track of. Increasingly efficient plant technologies, changing political and legal conditions (including subsidy programs) and a complex range of products make it difficult for consumers to choose the right plant.
In addition, the information and installation instructions (poor translation) provided by the manufacturer, often from the Far East, can be relied upon only to a limited extent.
Anyone who wants to purchase the Best Home Wind Turbines today should first obtain the necessary requirements from the relevant building authority, check the wind conditions at their own site themselves or have them checked by an expert and only then look for the right product.
Only smaller Best Home Wind Turbines offer the option for self-assembly. The assembly of larger wind turbines is done by a specialized company, if possible by the manufacturer himself or a company certified by him.
Glossary / Guide: Home Wind Turbines
The turnover of energy per time unit is characterized by the term watt. Nowadays it often stands for the power of household or gardening appliances.
A rechargeable battery is a built-in, rechargeable battery. Common forms of rechargeable batteries are Li-Ion batteries.
Unalloyed, especially pure steel has the standard EN 10020 and is called stainless steel. It is used in industry, in product manufacture or in medicine.
How much torque is applied to a given body is determined by the unit of measurement of the torque. In rare cases it is indicated as “M”.
PCs, laptops and some smartphones or televisions and tablets have a solution for connecting additional devices, such as input solutions or storage media via USB connection, also known as Universal Serial Bus. The latest standard is called USB 3.0.
With the help of electronic tracking, systems record other systems or users and their movements.
Carbon dioxide or CO2 consists of oxygen and carbon and is an important part of the global carbon cycle. It is created by the respiration of cells but also by the burning of fossil substances.
Kilo is an obsolete weight measure, nowadays many manufacturers or physicians measure in kilograms.
Users and manufacturers calculate the largest possible distance between balls or circles using the dimension “diameter”.
English term for “outside”. Nowadays various articles have the characteristic “Outdoor” on their packaging to signal the option of outdoor use.
Ah (ampere hours)
Ah = ampere-hours, a unit for electric charges.
The more power an electric tool has, the higher the vibration can be and thus impair its use. A low-vibration tool reduces the effect and makes handling much easier and the result more precise.
Effective power that electronic devices generate through a transformation process.
Polytetrafluoroethylene, a plastic produced by DuPont. It is used in most cases as a coating for pans.
Clock dithering during the transmission of digital signals.
Permanent magnet generator
Instead of coils, the field of the exciter provides a generator with magnetic properties.
Plastic with reinforcements of glass structures. Used for stable furniture or sports equipment but also for wind generators.
Refers to the height of the seat of a wind turbine rotor.
Scientific geophysical field dealing with the observation of the atmosphere.
Stands for forms of energy that do not exploit resources, such as wind or sunlight.
Heart of computers, also called CPU. It is a chip that uses circuit processes to drive the processing of data.
The flowing and influencing air together with its resistance. It is of central importance for the function of airplanes, because it enables lift and downforce.
Another name for photovoltaic modules for the generation of energy from sunlight.
Content substances that may be harmful to the user’s health.
Internal combustion engine
Component of today’s cars and motor vehicles. Compression of fuel causes a deflagration in the pistons and the vehicle gains speed without the use of physical force.
Metal from space technology that can withstand intense heat without becoming brittle and prevents caking. This is why it is used in cooking utensils, but also in vehicles, as it has a low dead weight.
Hardened and processed iron that gains additional strength and durability through high temperature treatment. Steel is used as a building material and is the basis for screws, holding plates or building supports.
Interruption of the electrical circuit caused by overvoltage or moisture in the electrical system. Short-circuits are the most common cause of fires in private homes.
Voltage, indicated in volts, which a device needs to function.
Universal Serial Bus known as a bus system in data transmission or the movement of energy from the socket to the battery.
Term for cotton cloths with high fabric density and stability, as used on sailing ships.
All forms that are used to generate energy without having to use the earth’s resources. These include: Solar energy, hydropower or wind power.
Plates, the solar arena