Forget that rooftop windmill: David Cameron and New Yorkers should

I THINK we all remember that David Cameron put a nice little windmill on his roof just to show that he really was green? And that there was a little bit of controversy about whether it would ever in fact generate any electricity at all? After you’d subtracted the energy needed to make it in the first place?

We’ve now got some real numbers from an experiment in the US.

In the 15 months since the turbine was installed, though, it has delivered less than 4 kWh—enough only to power a 12,000 btu window air conditioner for one afternoon.

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Tim Worstall

Posted: 9th, August 2012 | In: Money | Comments (2)