Wednesday, January 19, 2011

Concerns Over Proposed International Grids For Wind Turbine Energy

    The philosophy for creating the plethora of wind turbines which are at the will of the weather needs to be defended. Sadly a country having wind turbines is almost like having a national airline despite the economics.
    Though on balance, and accepting at least by default that global warming is a reality, the production of turbines on the present scale, on land and on and off shore, on the present scale in North Western Europe  is alarming and attempts to smoothen out supplies from them between countries therein by developing an international grid can be a mutual disaster.
    All can be seen to be increasingly at risk at the will of wind. Weather patterns can affect many turbines at once in these geologically small areas and all the grid connnections in the world will be useless when massive flat weather patterns embrace this part of Europe.
    International grid scenarios also will be accompanied in competition for production excesses, and they have to be excesses, of power in one county or another, and political termoil or fractious relationships, and financial vulnerability could affect such smooth running.
   The rush to spend billions on wind power is not concurrently being backed up by the production of reliable conventional power plant and the cost of these appears to be ignored.
    A better system is the storage of the wind's energy on site as I propose.

Monday, January 10, 2011

Considerations against larger conventional offshore wind turbines

One has to wonder about the sense of increasing the size of rotors. Allowing that the drive is for increased rotor efficiency the variable speeds encountered by the blades over a population of wind laminations in such a large coverage must surely cause concerns over resulting vibrations of blades and towers. There already exists a small population of disasters. Also the increase in the size of the towers to accommodate these bigger rotors also increases the gap in what is now potentially a spectrum of different winds. Also the population of such towers in a wind farm must be less due to the cover effect.
No doubt costs of delivering electric output to land per unit power produced at sea will decrease, but by how much?
I propose that eliminating the generating nacelle and replacing it with a water pump at the base of the tower means the towers can be lighter and cheaper in construction eg lattice pylons. The water pump being at sea level allows easier servicing and eliminates the inherent problem of servicing the cells at great heights and the inevitable issues of sea water and electricity.
In my concept of an island of water the height provided for turbines thereon (a base some 1,000 above sea level) provides more consistent wind pressure and the island contours will increase that again. The density of turbines can be increased as the contours result in less cover.