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#1
13.10.2004, 11:20
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I had been asked recently my someone wanting to install a wind turbine what
the average wind speed was at my station. This is something I had really recorded before, but there is a web site where you can input your grid reference and it tells you the average speed I wondered if anyone else had come across this and also wondered how accurate is it likely to be http://www4.dti.gov.uk/energy/renewa...ies/windspeed/ many thanks Paul Crabtree Brampton N.E. Cumbria 117m ASL Climatological Station 7076 http://www.bramptonweather.co.uk |
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#2
13.10.2004, 13:42
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Paul Crabtree wrote:
> I had been asked recently my someone wanting to install a wind turbine what > the average wind speed was at my station. This is something I had really > recorded before, but there is a web site where you can input your grid > reference and it tells you the average speed > > I wondered if anyone else had come across this and also wondered how > accurate is it likely to be > > [..] > > many thanks > > Paul Crabtree > Brampton N.E. Cumbria 117m ASL > Climatological Station 7076 > > [..] > Probably not that accurate. This part of Norfolk is particularly popular with Turbine operators for some reason - and although you can get average speeds on a postcode basis, that doesn't seem to stop them from putting up survey poles (basically 200' masts with an anemometer at the top) for a couple of years before they apply for planning permission. Cycling around the countryside here, it's interesting just how many of these masts you see... |
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#3
13.10.2004, 17:08
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On Wed, 13 Oct 2004 11:20:39 +0100, Paul Crabtree wrote:
> I wondered if anyone else had come across this and also wondered how > accurate is it likely to be > > [..] Plugged in the 4 figure reference for here and it came back with 4.5m/s at 45m (10mph at 150') or 3.3m/s at 10m (7.3mph at 33'). GDF comes back at 12.1m/s at 45m (27mph) with no great difference with height above ground level. Mount Hooley: 7.6m/s (17mph) down to 6.3m/s (14mph). So for *average* over a longish time span I'd say that the figures are not that far from the mark but bear in mind that they are using a 1km square so local topography could be very influencial and these are averages, GDF can reach F11 with gusts 80 to 90mph. Storm conditions also need to be taken into account lest they break your turbine... |
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Average Wind Speeds