Wind turbines: the whole truth.
VII1. Pioneering innovations are not possible. On the contrary: failures will become more frequent. A film as evidence.
As shown in the first chapter, and revealed by the graphics of the variations of the generated electrical power, as a consequence of these inevitable variations the amount of kilowatt-hours (kWh) per year can only be small. It is impossible to improve this output because of the law of nature that determines the entire behaviour of a wind turbine. That alone renders innovations of Wind turbines impossible. It makes no sense to fight against a law of nature.
In order to produce slightly larger amounts of kWh, the constructors intend to build ever taller Wind turbines with extremely long propeller blades, thus causing all forces on the pylon and all other mechanical components to increase more than proportionately. The constructors try to adapt to and control these consequences by applying new materials and construction methods. They ignore the fact that they have reached the limit of any possible control in the case of the enormous Wind turbines with a maximum power of 3 or even 5 MW, just as they ignore the fact that by this irresponsible over-sizing of Wind turbines the average energy they actually produce will increase no more than half or just one MW. And that is of course perfectly senseless in relation to the average power with which our plants supply the electricity that we need (approx. 13,000 MW). So that is another reason to conclude that real pioneering innovations of Wind turbines are impossible.
These unrealistic attempts to design ever taller Wind turbines with ever longer propeller blades, nevertheless yielding only slightly more electricity, will undoubtedly lead to more failures of Wind turbines. The time when, on a regular basis, propellers used to break off and were flung far off has passed, due to the improvement of the construction of propellers in the case of medium size Wind turbines. However, the turbines that are built now, taller still and with longer propeller blades, are leading to a renewed increase of mechanical failures of Wind turbines. Try for a moment to imagine the enormous forces applied on the propeller shaft by three 50 metres-long "levers". If there is a storm or change in the wind direction, the propeller rotation will have to be slowed down or stopped by a braking system. This is similar to trying to brake or stop a heavily loaded truck wheeling down a steep hill. These kind of mechanical forces are bound to get out of hand at some point, causing the whole thing to collapse.
Now watch a short film showing a dramatic event that happened to a wind turbine in Denmark on 22 February 2008, when its braking system broke down.
Also in the Netherlands, there have been cases of Wind turbines going berserk, in Dronrijp and in Texel (February 2008), among others.
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