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Energy storage available in wind turbines

Wind Turbines Store Energy For Less Breezy Days HUFF POST, 7 Aug 13  “……a new wind turbine that generates more electricity at lower wind speeds, stores some excess energy for sale to the grid later (allowing owners to take advantage of higher prices), and also does a better job of analyzing and predicting the supply of wind energy too. In short, many clean energy advocates are pretty excited about GE’s 1.6-100 and 1.7-100 wind turbines and power management system.

Specifically, here are some of the features that clean tech geeks are getting excited about:

  • Improved blade designs resulting in a 47 percent increase in “swept area” (the square feet of the rotor) compared to previous models – meaning a 20-24 percent increase in power.
  • More energy harvested at lower wind speeds, resulting in a class-leading capacity factor of 54 percent. (Detail alert: the capacity factor is the actual power output over time, compared as a percentage to the theoretical power output of the turbine if it was producing at its maximum output at all times.)
  • A battery storage system that allows wind turbine operators to save excess electricity — either because they are producing more electricity than the grid needs at a given moment, or because they’ll get a better price for it later.
  • A sophisticated package of analytics equipment and software, which helps owners predict both when power will be needed and when the wind will be blowing, allowing communication between turbines in what’s been described as “an industrial Internet”.

Individually, each of the developments represented in the Brilliant turbines are a big deal. Collectively, says Andrew Burger of CleanTechnica, they have the potential to be game changing. In an enthusiastic, three-part series on the Brilliant turbines (see alsopart two, and part three), Burger explains why all this really matters to the rest of us – namely that the cost of wind energy has come down by 60 percent in recent years, making it competitive with new coal and natural gas plants. And that’s before you even start calculating all the hidden, but very real economic costs caused by our reliance on fossil fuels….


August 8, 2013 - Posted by | energy storage, Resources -audiovicual

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