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Powertree EooD, Nikiup, Veliko Turnovo, Bulgaria - Powertree EooD

15 Oct 2009 06:10:44

Does it float !? - Fly ?

It does as much Harm to install equipment that doesn't actually help (gigantic "windfarms", for instance) as it does Good to Install equipment which actually does help. A modern (80m high) Windfarm, actually takes several hundred years to provide the energy required to build it. There are two reasons for this.
1) The cost of facing any given area of weather is a necklace-shaped function of Diameter of TADs deployed. The lowest cost is for sizes where the T costs about the same as the A. This happens at around 1m diameter.
2) Operating at constant revs progressively wastes high winds, causing the power taken from the wind to be about "pro-rata" with windspeed, as opposed to the cubic relationship obtained from "revs pro-rata with windspeed" (constant Pitch) mode of operation.

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