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Green Jobs in a Brown Field

By Carl Levesque, AWEA
May 6, 2010   |   3 Comments
New tower manufacturer Ventower Industries breaks ground on production facility.

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CEA
May 6, 2010
Communities are what will power the next generation for America. It is from the people and from the voice of the future generation that will lead the nation into a new dawn. What will this look like? That is anybody's guess. What is important is that the younger generation and communities are in action now. This voice is what should lead this country into a new era of true energy security, and empowering communities. Very cool article, and shows exactly how we can build a cleaner society from the standards today.
Want to learn more about balanced energy for America? Visit www.consumerenergyalliance.org to get involved, discover CEA's mission and sign up for our informative newsletter.
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Anonymous
May 7, 2010
I find myself with the same kind of vision as CEA at the top. Both wind and Solar energy are inherently distributed, and it will be up to localities and individuals to collect it.
After some 15-20 years of solo effort in the pursuit of a Self-Sustaining wind-energy system, I uncovered some rather disturbing facts ! One, is that Turbines cost/m^2 obviously Increases with size, whilst Alternators are bigger costs less per watt. This causes the Total cost
( N x (T+A) wads) to be a necklace-shaped function of (log) Size, or diameter. The lowest cost is for dia. where the T costs about the same as the A. This ocurrs at around One Metre diameter !! Just under this and the coupling ratio can be 1:1.
There are 3 other reasons which account for why it is that current
(80?m high-) "technology" is about 40x the cost per Joule that it is from a sensible design. i.e. 5% p.a. of cost is commonly available.
Oddly, AWEA - et al - appear to wish to ignore this ? I never hear from them. bertdotwindonatgmaildotcom
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3 of 3
May 10, 2010
While the cost functions may well vary as you say, its not costs that drives electrical generation; its sales of electricity. Electricity generated and sold as revenue increases with the blade radius squared and with the faster winds reachable using higher towers, hence the movement towards 6 MW generators and tall, large diameter towers. Revenue minus costs is the real driver.
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Carl Levesque

View Carl Levesque's Profile
About: Carl is Editor & Publications Manager at the American Wind Energy Association, where has worked since 2006. At AWEA he oversees AWEA's online and print publicat... more »

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