Wind Turbines – Up Close And Personal

Wind Turbines – Up Close And Personal

Last week I was in Denmark, and while there I had an opportunity to pay a visit to some wind turbines operated by Aalborg University in Northern Denmark.  Getting to finally see and hear a fully functional 2.3 MW wind turbine “in the flesh” was pretty cool, I have to say.

There was a reasonable wind blowing at the time of my visit and the turbines were moving at around 15-18 RPM.  Standing directly under the blades I could certainly hear them moving, but it wasn’t as loud as I had expected, and after moving just 50-100 yards away the sound diminished significantly.

The University also has a mast close to these turbines in order to measure wind speeds at different heights above the ground, as part of their research into efficiency of production.

Here are some photos…

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Gareth is a Founding Principal at Technology Metals Research, LLC. He has expertise in a variety of magnetic materials, devices and applications, and their associated trends and challenges, particularly for renewable energy production. For more information check out his biography page. Don't forget to check out Terra Magnetica at Twitter too.

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2 Responses to “Wind Turbines – Up Close And Personal”

  1. Tim Starns Says:

    There’s the Judith Gap Montana 135 MW (96 towers) near here. It’s pretty cool to watch those big blades turning. For some reason they make me think of Star Wars..but they’re quiet and graceful. I think they’re all 1.5MW and look very similar to the ones in your photos. GE recently bought a Dutch design turbine that has no gearbox or reduction transmission. That would reduce maintenance to about zip I’d think.

  2. Gareth Hatch Says:

    Tim: GE bought Scanwind, a Norwegian wind turbine company, at the beginning of September 2009. They were indeed focused on permanent magnet-based generators, which if I recall correctly, were originally designed by Siemens.