Are Wind Farms A Lot Of Hot Air... And What Would We Do When It's Not Windy?

Romantic hope: Wind farms cannot be the sole solution to our energy crisis

From The Daily Mail:

They're fine for making the odd cup of tea. But, says the Mail's Science Editor; if we wanted to go totally green, we'd have to carpet the country with more windmills than exist in the whole world.

There can be few more dramatic ways to create energy to boil a kettle. A few feet above my head, a giant blade scythes through the air. It is razorsharp, travels at about 90mph, is 130ft long and weighs some nine tons. Moments later, a second blade does the same thing, followed by a third.

The three rotors are attached to a 210ft-tall white tower which looms to the same height as St Paul's Cathedral - although many would consider it considerably less beautiful - and can be seen from miles around.

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