Bit more ref fluctuations in wind:
That the very small power produced varies uncontrollably and very sharply hundreds of times per year between maximum and zero output. To state that the power "varies somewhat" because of the variation of the wind force amounts to purposefully hiding the whole and much more unfortunate truth.
The innovation of Wind turbines will never be able to bring any improvement in this behaviour as it is determined completely by a law of nature.
Because of this inconsistent behaviour the production factor can only be low.
As another consequence of this behaviour of Wind turbines, the cost per generated kWh will be and will remain high, even more so because the electricity that is delivered by the Wind turbines is of a bad and unreliable quality, and only available during unpredictable periods, and hence unfit for individual consumers. That is why it is misleading to compare the cost of unreliably produced "wind-kWh" with the cost of almost completely reliably produced "conventional kWh".
The fluctuations in the power from a great number of Wind turbines, whether on or offshore, can become a great danger for the safety of the electricity grid. Compensation for these swings by upward or downward adjustment of conventional plants is only possible to a certain extent. And, if the limit were surpassed, this would lead to a great risk mechanical of damaging the turbines of the conventional plants. Apart from the fact that those plants would then operate with a lower efficiency because of being forced to adjust their output, and consequently their CO2 emissions per produced kWh would be considerably higher then when operating with a constant power.
The more and the bigger the Wind turbines that are built, the larger their share in the power fluctuations between maximum at wind force B-6 or more and zero by wind force B3 or less. Just have a look at the wind force forecast in the newspapers or on television!
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