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EcoRenovator - Wind Power http://ecorenovator.org/forum/ Power from the wind. en Sat, 11 Sep 2010 00:57:11 GMT vBulletin 60 http://ecorenovator.org/forum/images/ramadhan/misc/rss.jpg EcoRenovator - Wind Power http://ecorenovator.org/forum/ Hawts and Vawts http://ecorenovator.org/forum/wind-power/1114-hawts-vawts.html Wed, 08 Sep 2010 21:04:38 GMT One or two points from one not greatly endowed with wind power knowledge. Bob McGovern's two posts on small wind power seemed full of good sense to me. I have n't been very impressed with much else I've read (Hugh Piggott also seems pretty good) in an subject area which seems to be fashionable and therefore full of charlatans out to make a quick buck .As B Mcg says of the many small wind power systems "..what a poor lot they are.." .I would extend this description to 90% of whats written on small wind systems.

To get to my points, I have a sneaky preference for Vawts somewhat modified by B McG's comments which seemed pretty sensible to me. However Vawts definitely win on aesthetics. Bob mentions the downwind blades are in the wind shadow of the upwind blade. Presumably this point would not be true for the most aesthetic version with helical blades ?

Secondly due to 1/the possibility of at least two bearings to the Vawt rotor , with a third easily added centrally.
2/ Some balance of rotor stresses by using helical blades and extending these above and below the top and bottom bearings.
3/ Potentially stronger blades supported at at least two points for a vawt.
4/ A much lower TSR

..I feel instinctively a Vawt should be able to stand much higher operating wind speeds than a Hawt and therefore be able to extract larger amounts of power from high wind speeds at exactly the time a Hawt has to furl to avoid damage. Less maintenance should be an additional bonus.

Surely these points must be significant in narrowing the gap between Hawts and Vawts. Any comments anyone. Big Al. ]]> Wind Power Big Al http://ecorenovator.org/forum/wind-power/1114-hawts-vawts.html Finally! US’ First Offshore Wind Farm OK’d by Interior http://ecorenovator.org/forum/wind-power/1112-finally-us-first-offshore-wind-farm-ok-d-interior.html Wed, 08 Sep 2010 14:37:09 GMT It really is about time. All the complaints about wind (noise, bird problems, etc.) is basically eliminated by putting them offshore. I also... It really is about time. All the complaints about wind (noise, bird problems, etc.) is basically eliminated by putting them offshore. I also imagine output would be more consistent off shore.

Quote:
When completed, the project will have the potential to generate 75 percent of the Cape & islands energy needs -- not only in the winter months when the wind resource is strongest, but as was was shown last year, Cape Wind will also be an integral part of smoothing out peak Summer demand.
Finally! US’ First Offshore Wind Farm OK’d by Interior | ecopolitology

]]> Wind Power Daox http://ecorenovator.org/forum/wind-power/1112-finally-us-first-offshore-wind-farm-ok-d-interior.html <![CDATA[Wind's latest problem: it . . . makes power too cheap]]> http://ecorenovator.org/forum/wind-power/1082-winds-latest-problem-makes-power-too-cheap.html Fri, 27 Aug 2010 16:48:45 GMT Heres an interesting article on why power companies don't like wind power. Most of us here know wind has already been shown to be cheaper than nuclear power. Recent reading has also mentioned that wind is now cheaper than coal in certain areas. So, its no real big surprise, but the utility companies don't like this because they make less money. Cheaper AND cleaner energy, imagine that.

The Oil Drum: Europe | Wind's latest problem: it . . . makes power too cheap ]]> Wind Power Daox http://ecorenovator.org/forum/wind-power/1082-winds-latest-problem-makes-power-too-cheap.html