Southwest Windpower Co-founder Speaks on Clean-Tech Innovations

Flagstaff, AZ (PRWEB) October 23, 2007

Southwest Windpower's co-founder, David Calley, will be speaking today at Alternative Energy Innovations in Redwood City, CA. Mr. Calley will speak as a panelist on a discussion titled, "Renewable Energy for the Grid." Mr. Calley's long-term leadership and expertise in the small wind energy market provides him an excellent opportunity to discuss how Southwest Windpower continues to innovate and integrate within the existing power grid. Mr. Calley will provide particular insight into the growing interest of small wind energy in the consumer and utility-based sectors. By speaking to both present and future market forces, Mr. Calley can speak to Southwest Windpower's best business solutions.

About Southwest Windpower

Flagstaff Arizona-based Southwest Windpower is the world's largest producer of small wind generators (400 to 3000 watts). The 20-year old company has been a pioneer in the development of wind technology and has produced over 100,000 generators that provide power to residential homes, remote cabins, telecom transmitters, offshore platforms, water pumping and sailboats. Southwest Windpower's newest wind turbine, the Skystream 3.7, is the first fully-integrated wind generator designed specifically for the grid-connected residential market. Southwest Windpower distributes in more than 88 countries. On the Web: www.skystreamenergy.com

About Alternative Energy Innovations 2007

Alternative Energy Innovations 2007 serves to highlight the growing investor interest level in clean-tech technologies. Venture capitalists invested more than billion in alternative energy-related technologies in 2006. High energy prices, innovative new technologies and seasoned management teams played a large role behind these investments. At Alternative Energy Innovations, keynote and panel discussions will address many clean-tech issues, including the outlook for alternative energy consumption, how oil giants are looking to utilize new energy sources, Wall Street's acceptance of emerging energy technologies, which technologies are next on the radars of venture capitalists and strategies for reaching customers in various energy sectors. Alternative Energy Innovations will be held Oct 23-24, 2007 in Redwood City, CA.

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What is stalling in a wind turbine rotor?

Question by Amy: What is stalling in a wind turbine rotor?
pLEASE EXPLAIN THE PHENOMENON OF STALLING.

Best answer:

Answer by Bramble
There are two basic approaches used to control and protect a wind turbine: pitch-control and stall-control. In pitch-controlled turbines, an anemometer mounted atop the nacelle constantly checks the wind speed and sends signals to a pitch actuator, adjusting the angle of the blades to capture the energy from the wind most efficiently. On a stall-regulated wind turbine, the blades are locked in place and do not adjust during operation. Instead the blades are designed and shaped to increasingly “stall” the blade’s angle of attack with the wind to both maximize power output and protect the turbine from excessive wind speeds. There are relative advantages to both design approaches. A pitch-regulated turbine, for example, is generally considered to be slightly more efficient than a stall-regulated turbine. On the other hand, stall-regulated turbines are often considered more reliable because they do not have the same level of mechanical and operational complexity as pitch-regulated turbines.

Know better? Leave your own answer in the comments!

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