ERNA 8 is a wind turbine set specially designed to operate in regions with weak winds.
Model:  ERNA 8
Wheel diameter: 8 m
Maximal height 10 m
Maximum power 1100 watts is achieved at wind speed 5 m/s .
Please think deeper about  following fact:  Some other  wind turbine of the same diameter 8 m could produce till 16000 watt at speed of 12 meters per second. But it has no sense to speak about such situation in regions where such speed occur rarely ( only one day a year ) and average wind speed is about 5 m/s . Nevertheless most manufacturers rate power of their turbines for speed 12 m/s . But at  5 m/s they produce practically nothing.  Meanwhile we do not play such tricks with our customers.
Mounting base is made from natural round aspen logs, treated with fungicide. Mounting Base height is 6 meter.
Recommended application: for charging industrial batteries like forklift batteries, for irrigation pumps, for mills,  juicers, refrigerators, and house heating in winter and other application.
Voltage 12/24/48 volt
Price in as of 1 May 2024  is  9743   Euros.

Explanation
Only a wind turbine made of very lightweight materials is able to capture light weak winds. Therefore, the blades of the ERN wind turbine are made of cellular polycarbonate. Blades made of this material are about ten times lighter than traditional fiberglass blades. With just 5 meters per second of wind, the ERNA wind turbine is capable of generating its maximum power, making it unique nowadays. It will spin and generate minimal power even at a wind speed of 1 m/s, but it is economically feasible to use this wind turbine in areas with an average annual wind speed from 4 to 6 m/s. This is the specialization of ERNA wind turbine.
At speeds from 5 meters per second up to 30 meters per second, the turbine ERNA8 continues to rotate and produce 1100 watts of electricity. At speeds exceeding 30 meters per second, the turbine switches to a protective position and stops working. It is assumed that after the storm ceases, the turbine will be manually returned from the protective position to the operational state by one person using a rope. Such situations are very rare ( once in few years).
Recommendation: Find out the average annual wind speed in your area from your local meteorological service and  Compare the actual average annual wind speed with rated speed of the wind turbines before purchasing any wind turbine!
No heavy foundation is required to install the ERNA wind turbine, as it stands stably on four widely spaced legs. However, each leg must be tied to anchor which is buried to a depth of 30 to 100 cm depending on the model. The kit includes four anchors, which are stainless steel tube segments tied by stainless cable. The supports are made of the most environmentally friendly material given to humans by Nature –  the wood. The wood is treated with antiseptics, ensuring a long service life.
Despite being made of very lightweight materials, the ERNA wind turbine is capable withstand strong hurricanes, thanks to two our „Know-Hows“: Firstly, it has no cantilever-shaped elements, and all load-bearing elements have the form of closed load-bearing triangles, including even the blades, which are reinforced by diagonal cables. And secondly, this wind turbine adopts a protective position in strong winds, and in critically dangerous winds, it simply lies on the ground without breaking.
The ERN8 wind turbine has the highest Power/Price ratio at regions where average wind speed is lower 7 m/s, so if you need more power, we recommend simply buying and installing a larger number of ERN8 wind turbines, rather than searching for a single giant wind turbine on the market with the same total power. Because the single giant will be more expensive to purchase, and it will be extremely costly when need any repair.
The prices quoted do not include any warranty obligations. Remember: we sell wind turbines as they are, i.e., as an experimental installation without subsequent warranties. That is why our products are cheaper than the average prices on the market for products of comparable size. We do not provide warranty repair services, so by buying from us, you automatically declare that you have sufficient mechanical skills and undertake to install on-site and any future possible repair yourself . Of course, You will be able to purchase the necessary unique spare parts from us at a reasonable price in brackets of the separate trade deal. All our wind turbines are very easy to repair, which can be done by your local mechanics. No crane equipment is required for installation and repair.
Safety Rules and Tips for Effective Risk Management
The blades of our wind turbines are very lightweight and therefore the least dangerous compared to all known wind turbines. However, if used carelessly, they can cause damage. The area must be fenced with a fence with a diameter of at least four heights of the wind turbine. Do not approach the wind turbine during a hurricane. In winter, during strong winds, dangerous icicles may fall from the blades, so do not stay in the area where they may fly during this time.  By purchasing a wind turbine, you agree to undertake full responsibility for any undesirable consequences and accidents.