Tag Archive | "renewable energy"

The Problems Of Sourcing Wind Turbines And Rare Earth Metals From China

Thursday, November 12, 2009

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Last weekend, Democrat US Senator Chuck Schumer of NY made headlines with his comments on a recent plan to fund a wind farm in Texas, using Federal stimulus money to pay for Chinese-built wind turbines. Rare metals commentator and analyst Jack Lifton has posted a new article on the subject, called “The Rare Earth Crisis […]

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Wind Turbines – Up Close And Personal

Monday, October 12, 2009

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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 […]

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The Windbelt: A New Non-Turbine-Based Wind Energy Generator

Wednesday, September 23, 2009

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The Windbelt: A New Non-Turbine-Based Wind Energy Generator

Earlier this week I came across a rather interesting new technology from Humdinger Wind Energy, LLC. Based in Honolulu, this company claims that “from enabling smart buildings to reducing the cost of wind energy”, they are “researching & developing the world’s first non-turbine harvesting technology, the Windbelt™ generator”.  Wind power without a wind turbine?  Definitely […]

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10 MW And Beyond: Are Superconductors The Future Of Wind Energy?

Friday, August 7, 2009

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10 MW And Beyond: Are Superconductors The Future Of Wind Energy?

The demand for electricity generated by wind turbines grows each year, with legions of engineers working frantically to implement new technology.  In this article we will look at the “bleeding edge” of generator design: the emerging use of superconducting materials to produce direct drive generators that are in theory capable of generating 10 MW of […]

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How Does The Use Of Permanent Magnets Make Wind Turbines More Reliable?

Monday, August 3, 2009

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How Does The Use Of Permanent Magnets Make Wind Turbines More Reliable?

For all of its soaring elegance, it is easy to forget just how complex a machine the modern-day commercial-scale wind turbine really is.  In this article I will focus on the massive, highly engineered electromechanical system sitting at the top of every wind turbine tower.  We’ll explore how the use of permanent magnets in the […]

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Why Are Wind Turbines Getting Bigger?

Saturday, August 1, 2009

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Why Are Wind Turbines Getting Bigger?

No-one following the growth of the wind turbine industry over the last two decades will have failed to have noticed the trend towards larger and taller turbines.   While this might seem to just be the natural order of things [after all, “bigger is better”, right?] – it might be a useful exercise to pause […]

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The Growing Role of Permanent Magnets in Renewable Energy Production and Environmental Protection

Saturday, August 1, 2009

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The Growing Role of Permanent Magnets in Renewable Energy Production and Environmental Protection

At the Magnetics 2008 Conference in Denver, I presented a paper titled “Going Green: The Growing Role of Permanent Magnets in Renewable Energy Production and Environmental Protection“.  Earlier today I finally uploaded a copy of the presentation to the Web, which you can now find here. The presentation covered a range of related topics, starting […]

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