Wind Turbine power

Does anyone know anything about putting a windmill on the roof for wind turbine polar (as opposed to solar panels). I've seen small ones on roof tops on the way to the airport. I'd be interested in noise, ease of installation, price, where to get one, can they be installed easily or does it need a company and how much electricity one turbine generates. Thanks.

Hi, I had one of the edf blue ciel reps try and sell me one yesterday, at around €14,000, though to be fair you would get a 32% tax credit on them! One thing to be aware of is that apparently they can cause vibrations in the wall they are fixed to

Chris

I looked into them when we had our smallholding a few years back. The smaller ones then were made mainly for the leisure boat people and were about £1200, but things have changed a lot in the intervening years and you should look see what's on the camping & caravanning market nowadays as I think they are more readily available at more competitive prices now. Probably Chinese....
They will be producing direct current to charge a battery - 12 or 24 volts - so you need an inverter to convert to alternating current, but again inverters are cheaper and better now than when I looked for one.