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Does Size Matter in Wind Turbine Efficiency?
Sunday, June 13, 2010

Glascow (in NewNet on June 12, 2010):  New research has suggested that larger wind turbine blades are more efficient at generating electricity in certain circumstances, such as in lower wind speeds. But wind developers at New Energy World Network’s Wind Energy Investor Forum said there is a limit to how large a blade on a wind turbine can be.  ‘Are we going to continue to grow blade size?’ said Vestas Wind Systems’ senior power sector specialist, Per Holmgaard when speaking at the forum.

Researchers at the University of Glasgow in cooperation with Gaia-Wind recently found that larger blades are more efficient at generating electricity in lower wind speeds. 

While giant wind farms are mostly sited on hillsides and coasts with little population, smaller wind turbines that tend to serve farms and businesses are often located in more populated areas with less wind but paradoxically the implication of the findings is that bigger turbines with larger blades are more effective in these areas.  The research focused on the effects of changes in the number of rotor blades; the size of the blades; and the electrical design of the generator.

Read more: Does Size Matter in Wind Turbine Efficiency?
 
Clean: The 1st Step to Green?
Saturday, June 12, 2010

Washington, DC:  The move toward "green," meaning primarily new sources of renewable energy, has dominated the headlines over the last two years. Many people around the world automatically perceived "green" to be the answer to addressing climate change and to achieving environmental sustainability. The problem is that attaining the long-term goal of a world powered by renewable, low-carbon energy is a highly complex and expensive proposition that no single technology, green or otherwise, can resolve.

As perception collided with reality and the initial hype around "green" began to subside, a new, more balanced concept emerged: clean development. It encompasses many things related to sustainability, including energy security, economic growth, fair markets, and clean water — as well as carbon constraint. Furthermore, it is built on the pursuit of cost-effective energy that is "clean," and not just limited to renewables. This includes natural gas, nuclear and coal when used in environmentally sensitive ways.

At a recent Deloitte Center for Energy Solutions panel discussion, Clean: 1st Step to Green?, Joseph A. Stanislaw, Independent Senior Advisor, Energy & Sustainability, Deloitte LLP, moderated a panel including Robert Beck, Executive Vice President and Chief Operating Officer, The National Coal Council; Thomas Skains, Chairman, President and Chief Executive Officer, Piedmont Natural Gas Company, Inc.; and Christine Tezak, Senior Energy & Environment Policy Analyst, Robert W. Baird & Co. Click here to see their insights and perspectives.

 
North Museum to Spotlight Alternative Energy Solutions
Saturday, June 12, 2010

Lancaster:  As part of its Family Science Sunday program (offered the first Sunday of each month), the North Museum is looking for companies in the alternative energy business for its August 1 offering on “Alternative Energy Solutions”.  The Museum invites presenters featuring innovative solutions in energy management. This could range from household energy usage solutions to biofuels to solar water heating or photovoltaics and others.

Presenters must meet three criteria:

  • Meet with museum staff to prepare for their time with the general public
  • Be present from 1 PM to 4 PM at the Nortth Museum on August 1
  • Have a hands-on interactive element that would be utilized with the public at a table set up within the museum.

Contact person is Jim Ringlein at 717 291 4077 or This e-mail address is being protected from spambots. You need JavaScript enabled to view it . Interested firms should contact Jim by June 30 at the latest.

 
Five Things You Must Know about the Green Economy
Monday, May 31, 2010

Menlo Park, CA:  According to Green Career Central, these are the five things that everyone interested in green careers needs to know...

  • The green economy is made up of over 50 industries and sectors;
  • Many say that the economy that is developing right now is the largest economy opportunity of our lifetime;
  • We are in the early stages of a new economic era;
  • The green economy is evolving constantly and will continue to for some time to come;
  • The various industries and sectors that make up the green economy are becoming greener/cleaner/more sustainable at varying rates.

To download the article, click here.  To visit Green Career Central, click here.

 
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