Signatures 52 total
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Name: John Bidwell on Feb 6, 2012Comments: Enter your state hereFlag
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Name: Ben Dover on Feb 9, 2012Comments: its all fun and games until chunks of human meat start flying.Flag
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Name: Alan Dyer(Professor) on Feb 11, 2012Comments: I deplore the plans to cover our countryside with wind turbines. This country's energy needs can only be met by advancing the plans to build nuclear. Look at France as an example!!Flag
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Name: Wendy Thorne on Feb 18, 2012Comments: These are an ugly, & a blot on our landscape,inafficient,costly,generally not manufactured in the uk.Flag
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Name: Stephen Thorne on Feb 18, 2012Comments: Let's keep our landscape free of these ugly things,site them out at sea,at least we dont have to see them.They will cost households an enormous amount of money for the cost of the electric produced from them,Keep Them Out!Flag
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Name: Anonymous on Feb 19, 2012Comments:Flag
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Name: Anonymous on Mar 5, 2012Comments:Flag
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Name: Anonymous on Mar 5, 2012Comments:Flag
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Name: Xxvbiutur on Apr 11, 2012Comments: XuULfp gvppboqvlqdq, owdgfmjjbifo, rxnidgxdrpuy, http://gucfptiwvekk.com/Flag
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Name: Mark Holt on Apr 29, 2012Comments: Due to there not being and guidelines for the separation of turbines from homes there will be many more applications for bigger turbines.Flag
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Name: Karen Holt on Apr 29, 2012Comments: keep turbines away from homes and protect greenbelt. Stop profiteering landowners and businessmenFlag
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Name: Karen Holt on Apr 29, 2012Comments: keep turbines away from homes and protect greenbelt. Stop profiteering landowners and businessmenFlag
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Name: James Holt on Apr 29, 2012Comments: Say no to turbines near homes.Flag
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Name: Josh on Jul 1, 2012Comments: We need wind turbines like to on the side of bungliids to power the A/C units during peek afternoon period ,bcoz during this time the place that I work faces the South china Sea the winds always blowing very often giving more than enough watts to offset the power from the grid.Flag
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Name: Alita on Jul 1, 2012Comments: one has to give it to you.Just go take it.You can build a free energy mcahine. Anyone can. No one can stop you. Just build it. There are loads of plans for them online.People are doing it all over the world.Don't ask permission.Just do it.Flag
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Name: Fxysxgur on Jul 2, 2012Comments: cNoswb ncmlgevswiqkFlag
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Name: Nwqakaa on Jul 2, 2012Comments: MaiU4U , nbblghdinwcf, izpdrfqqneej, http://ninvglhlwnmk.com/Flag
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Name: Vyacheslav on Jul 3, 2012Comments: Hey Shalom, good day to you. Your question is not rellay answerable as it is written. From the standpoint of efficiency, fewer blades does translate to better efficiency, meaning how much energy you can extract from a given wind and swept area, I'll explain in a moment. Mike is correct that there is no one design that is best, whether you're speaking of cost per unit power, power per unit wind, man-hours of maintenance per unit power and so on. If there were one best design, all windmills would be the same. They aren't, and there's a very good reason. Mad Max is correct also, the utility sized turbines use less material per unit power output. The other advantage to them is you need fewer people to maintain them per unit power they put out, this is what rellay endures them to utility companies. They do cost more in terms of purchase price for manufacturing, shipping and installation, but once you have one of those beasts running, they look very good on the balance sheet for years to come.When people in the wind business talk of efficiency, they are referring to amount of power you can extract from a given wind speed and swept area of the blades. The short answer is the most efficient wind turbine design is the horizontal axis single blade turbine. Most people have never heard of or seen one in North America, they were common years ago in many parts of Europe where the winds were very light, and so efficiency was a chief concern. The single blade extended only in one direction away from the hub, and on the opposite side was a large bowling ball shaped counter weight. The reason this type is most efficient is that the one airfoil has complete use of the passing air. When you add a second blade, you can capture the wind twice as often, but the combination of two blades to swing through the air creating drag, and the turbulence left behind from one blade interferes with the second one in its path, much like a boat leaving a wake behind for another one to pass through. The next most efficient design is the 2 blade, but it is nearly as efficient as the single blade, better for slightly higher and less steady winds. They work best in areas where the wind blows mainly in one direction all day and the rotor head does not have to change direction often. When you are in a situation where the wind changes direction frequently, like the upper midwest, the three blade units are the best, because no matter what orientation the blades are in, the gyroscopic moment on the tower is steady while the unit is turning to a different direction. This is the main reason the 3 blade units are so common in North America. The 5 or 10 percent loss in efficiency is more than offset by the longer longevity of the tower and equipment, they run much smoother. Once you get beyond the 3 blades, additional blades do not offer any additional advantages, but each additional blade costs a bit more in efficiency losses. For this reason, most wind turbine manufacturers today primarily make 3 blade units. There are a few 2 blade units out there, Southwest windpower has one I believe for home use. There are also a few very small units for remote applications with 6 or 8 blades, but these are made purely for extremely high wind applications, like an artic weather station or onboard an ocean going vessel.The two people who are considered the gurus on this subject are Mick Sagrillo and Paul Gipe. Paul has written a book called, Wind Power for Home and Business, and Mick has authored several papers and articles and written several books on renewable energy as well, and continues to teach workshops in Wisconsin on the subject. We were fortunate enough to go to one of his classes at the Midwest Renewable Energy Fair several years ago. I would suggest looking for Paul's book at the library, or anything by Mick, or surfing to one of the websites below, it's all very interesting reading, and you'll be getting better information on the subject this way. Hope this helps, take care, RudydooFlag
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Name: Mgjfbarm on Jul 3, 2012Comments: s6kLpZ bnhpwaioflxmFlag
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Name: Fphdrlyu on Jul 4, 2012Comments: ToirGh , drrrghouldrx, krzghlkvwamq, http://pzywfzjpxplh.com/Flag
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Name: Colin Riley on Jul 9, 2012Comments: minimum distance of at least 1.5 kilometres should be adopted to stop mercenary neighbours spoiling the lives of multi neighboursFlag
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Name: Wayne Silver on Jul 10, 2012Comments: I a vigorously opposed to these inappropriate turbine applications.Flag
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Name: Anonymous on Jul 10, 2012Comments:Flag
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Name: Julie Kershaw on Jul 11, 2012Comments:Flag
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Name: Ed Johnstone on Jul 13, 2012Comments:Flag
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Name: Christian on Jul 22, 2012Comments: A solar wind is a stream of chaegrd particles (i.e., a plasma) which are ejected from the upper atmosphere of a star. When originating from stars other than the Earth's Sun, it is sometimes called a stellar wind.It consists mostly of high-energy electrons and protons (about 1 keV) that are able to escape the star's gravity in part because of the high temperature of the corona and the high kinetic energy particles gain through a process that is not well understood at this time. Many phenomena are directly related to the solar wind, including: geomagnetic storms that can knock out power grids on Earth, auroras, why the tail of a comet always points away from the Sun, and the formation of distant stars.While early models of the solar wind used primarily thermal energy to accelerate the material, by the 1960s it was clear that thermal acceleration alone cannot account for the high speed solar wind. Some additional acceleration mechanism is required, but is not currently known, but most likely relates to magnetic fields in the solar atmosphere.Flag
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Name: Ersin on Jul 22, 2012Comments: There is an entire suviibisdon of solar homes that were just built in Sacramento CA. The builder said that the solar panels added $18,000 to the price of the homes which are selling right around $500,000. There are a lot of places in North America that are wonderful for both solar and wind, Palm Springs, CA, Chicago IL, anywhere in the sun belt for solar and in wind tunnel alley across the midsection of the US. There are also homes that are completely green that will be built in the next year for victims of the Katrina Hurricane in New Orleans. Brad Pitt just announced the winning architects last week. They use a combination of techniques including the re-use of rain water, ground heat, and solar. Check the Today show website for details on the project.Flag
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Name: Ztqzjgqyqoq on Jul 22, 2012Comments: C9wEz1 kgieybkwapgoFlag
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Name: Dpiybia on Jul 23, 2012Comments: 46yZ0S , efsyayxaycpt, zxyhrebuqaha, http://mzpbbkcylzmc.com/Flag
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Name: Prdrxfpkajk on Jul 24, 2012Comments: Oib3Cc rlfckzsrnxtcFlag
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Name: Vtzkgp on Jul 24, 2012Comments: 8LLOLT , qzqyubhjxooo, qqtjpumkkybh, http://oywyxlwgzvmg.com/Flag
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Name: Len on Jul 24, 2012Comments: Well since solar winds are protons sdeeping away from stars at near the speed of light they should impart some of their energy to any cloud of gas. Every proton that hits a particle of gas adds to the clouds net kinetic energy so over time all of those quintillions of particles in the cloud will one by one be pushed away from a star.Farther away from the a star one enters deep space where celestial winds are not dictated by any one star. The Voyager space probe is now approaching the region where our Sun's winds lose influence over the greater forces of the galaxy.Flag
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Name: Brett Healey on Aug 7, 2012Comments:Flag
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Name: Lisa Healey on Aug 7, 2012Comments:Flag
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Name: MARK KERSHAW on Aug 8, 2012Comments:Flag
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Name: Keith Wilson on Aug 11, 2012Comments: 2 Far Hillock Cottages Roman Road Hoddlesden BB3 3PP Fully support the minimum distance of 1.5 kmFlag
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Name: William Duckworth on Aug 11, 2012Comments:Flag
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Name: Stephen Scholefield on Aug 12, 2012Comments:Flag
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Name: Fenya Mayer on Aug 15, 2012Comments:Flag
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Name: David Gorton on Aug 15, 2012Comments:Flag
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Name: Anonymous on Aug 16, 2012Comments: These machines should only be sited off shore if at all and should not be sited on our hill country so spoiling the landscape.Flag
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Name: Anonymous on Aug 16, 2012Comments: These turbines should be banned fron the countryside, they are an eyesore and more.Flag
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Name: JENNIFER WILSON on Aug 17, 2012Comments: These turbines are ugly. Even the ones out at sea are an eyesore. They are a blot on the landscape.Flag
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Name: IAN WILSON on Aug 18, 2012Comments: not really convinced of the efficiency of wind turbines but if they are to be imposed then ideally they should be offshore and failing that well away from residential areasFlag
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Name: G.B,Almond on Aug 22, 2012Comments:Flag
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Name: Catherine Leecy on Sep 10, 2012Comments:Flag
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Name: Anonymous on Nov 3, 2012Comments: magnificent post, very informative. I ponder why the opposite experts of this sector don't understand this. You must proceed your writing. I am confident, you have a huge readers' base already! shop about wow po in buywowgold.fr http://blog.wedding-travel.com/yjlistanhei/Flag
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Name: Sandra Grant on Feb 2, 2013Comments: Set back distances need to be substantially increased as more information becomes available on the health hazards associated with wind turbines.Flag
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Name: Colin Gleave on Mar 13, 2013Comments: I fully support the minimum distance of 1.5 km fom nearest dwellingsFlag
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