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The Archimedes Liam F1 Urban Wind Turbine
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The Liam F1 Urban Wind Turbine is a small wind turbine with a diameter of 1,5 meters which weighs approximately 100 kilograms. Due to its size and weight it is suitable for installation on almost every roof and wall. In the Netherlands, the Liam will generate between 300 and 2,500 kilowatts annually at an average wind speed of 4,5 meters per second. These results are measured at 10 meters height, the average height of the roof of a terraced house. In the Netherlands, the most common wind direction is South-West

The actual yield of the wind turbine depends on your personal circumstances, such as the amount of wind, at your home location and the height of your roof.

Considering the  electricity use of an average Dutch household lies around 3300 kwh (kilowatt hours) a year, it is possible to generate half of your used electricity by installing the Archimedes on your roof. In Dutch area’s with a wind speed of 4,5 m/s or higher, the Liam provides a good return on investment. When your average wind speed is less, you will have to place it above ten meters, on a flat, for example. Due to its natural form, this wind turbine can extract 80% of the energy in wind.

It is small, quiet and affordable. It produces slightly more decibels than the urban background noise and therefore it is not audible. No more than 45 decibels when rotating. (50 decibels is rain, the sound in a forest). No complicated systems are required to turn this turbine in the right direction, it uses his shape to do so.

Several Liams can be placed together in a triangular alignment. Each turbine draws in wind by turning into the right direction, therefore the turbines do not compromise each other in their yield. They do not capture each other’s wind, which is the case with the large turbines. In addition, combining the Liam with solar panels is a possibility that provides a virtually constant output.


Liam F1 UWT Flat Roof construction


Liam F1 is specially designed for an urban environment with turbulence (rotating wind) so installation on a large pole is not required, it suffices if he just rises slightly above the roof/ the wall. The turbine can be supplied in any given color so it blends in. Generally a permit will be required before placement, because of the diameter that exceeds 1 meters. It has 3 safety systems and both consumers and corporate users have many subsidy opportunities. In addition, a mini-Liam is developed with a diameter of 75 cm.

1- World’s Most efficient wind turbine, starts generating at wind speed of 2m/s (9.6 Km/hour)- maximum 450 RPM at 35 m/s

2- World’s first silent wind turbine

3- Vibration free

4- Made of Fiber Glass +RVS

5- Maximum 1500 W

6- Weight = 100 kgs

Lifespan and warranty

The standard warranty on the turbine is 2 years. At purchase you receive the warranty form. This should be filled in and handed to the producer (or agent / dealer, depending on where you get the warranty) to obtain standard warranty. Additionally, 18 years warranty can be purchased, bringing the total at 20 years. The wind turbine is expected to last 20 years, if properly maintained. You can obtain a maintenance contract / maintenance package at your agent. For more information please contact your agent, they can be found at the website.

Despite the design of the wind turbine LIAM F1, which is completely mechanic and contains only two moving parts, these parts will wear over time. The axis of the blade is mounted with two ball bearings, as well as the shaft which makes it possible to “look for the wind”. The wear depends on the number of turns that the parts make. The number of rotations depends on the wind speed. Location of placement is therefore important. Theoretically, the bearings can endure 250,000 to 300,000 operating hours. Assuming 8000 hours per year, the bearings can last approximately 30 years. However, we recommend, depending on the circumstances, to replace the bearings after 10 to 20 years.

When you purchase the additional (18-year) warranty at your agent / dealer he will calculate how much wear will occur. The anticipated wear depends not only on the wind speed, but also on the temperature, humidity, air composition and other factors. For the composition of the air you should think of salty sea air that aggravates corrosive effects.

For coastal areas it is recommended to order the turbine IP65-classified at an additional charge. If the extended warranty is purchased it is possible to include replacement of certain parts, like the bearings, in the maintenance kit. Also, there can be additional conditions regarding multiannual maintenance.



The turbine can be monitored by the Archimeter. The advice is to (depending on the location of the turbine) visually inspect the turbine independently from software at least once every two years. When there is anything wrong with the turbine, the software will indicate this. It is very likely that you will hear this, for example grinding on the bearings. You can purchase a maintenance package that helps you protect the blades and contains lubrication for the bearings. It is also possible to order additional caps for the bearings. (IP 65) When you monitor the turbine using the software and you have purchased a maintenance package, you do not have to worry about your turbine. For questions, always consult the dealer / agent.



The Archimedes often get the question in what weather Liam F1 UWT is and is not functioning. The Liam F1 was tested in Korea at a temperature of -20 ° C. The temperature at which the Liam can do its job depends not so much on the outside temperature, but the temperature of the generator. The magnets that are in the generator lose their operation at 80 ° C. Temperature is therefore expected to pose no problem. The question to what extent the Liam can be placed up is also common. In principle, Liam can be placed at any height where man can live. Wind speed increases up to 6 Km altitude. Generally, people do not live at 6000 meters hight, because the reduction of oxygen to 5% makes life at such heights very difficult. Per continent and location, the optimal functioning of the turbine will be examined. In the Saraha, for example, the blades of the turbine will be given another configuration and degree of protection than in Western Europe.