Todd,
I want 150 to 200 Watt it is 1/10th of 1,5 to 2 kW. The swept area needed is less than 0.5 square meter. I want around 40 kWh per month which is an average of 55 Watt per hour. Margin for no or low wind is 1 to 3. I want a mass produced and dirt cheap VW-turbine, maybe around $200 installed with grid-inverter. Which is very feasible with large volume. It will be more like a household appliance an can be sold and installed by Whirlpool and the alike, TV antenna installers/suppliers is an other possible channel. You can also DIY. Like already existing http://energy.saving.nu/plugin/pluginsolar.shtml for solar. The problem is almost all existing wind turbines are, as you describe "my wish", too big and in reality unsuitable for urban areas. Most small wind turbines today are, because of the big (small) size, installed in rural sites. The idea is to have really small turbines and be able to use them roof mounted. Hakan At 06:05 07/01/2004, you wrote: >Sorry Hakan. > >If you were to ask me? I'd say it can't be done quite the way you would >wish. > >Whether you choose vertical or horizontal axis turbines, the height of the >foils themselves would preclude "roof mount" once you get past two or three >horsepower - 1.5 to 2 kW. Even then the degree of elevation needed for foil >clearance would require a micro-tower structure on top of a stable roof >system and the roof would have to be at something akin to a summit to begin >with. In all probability more advantageous to separate the housing unit from >the elevating tower once you get beyond a few hundred watts. > >If you were in the 50 kW range, I would say that you could reduce your costs >by building your own tower, presuming you had an engineer and welder who >didn't mind working for chips and beer on weekends. With a bit 'o luck you >could trade a keg or two of Sven's Black Powder Porter to the owner of the >crane company to help you get the tower and turbine vertical. > >'Course, you better make sure that the crane company owner is someone you >can tolerate for the next 50 years, 'cause he's gonna' be around every other >weekend to admire his handiwork and swill more beer. > >Beyond 50 kW? You're speaking of some reasonably serious industrial >construction. While 200 kW sized units are few and far between, the >technology and mechanics aren't a great deal different from a 600 kW or 1.5 >mW unit. > >200 kW is a boatload of output. You're speaking of powering a small >subdivision or the residential side of a small but posh ski resort. > >Me thinks that if one is considering a scale of ~200kW, it's time to call >your in-law banker and a few others with not necessarily too deep pockets >who are looking for a way to shelter their money from depreciation. Perhaps >by the time they down the third gin and tonic they might even be thinking on >the scale of megawatt? > >Only so much you can do on a cobbler's budget. > >Todd Swearingen > >----- Original Message ----- >From: "Hakan Falk" <[EMAIL PROTECTED]> >To: <biofuel@yahoogroups.com> >Sent: Tuesday, January 06, 2004 10:31 PM >Subject: Re: [biofuel] VW-turbine > > > > > > > > Todd and Robert, > > > > Please read my article, I am looking for 150 to 200 watt turbines at a >very > > low price, that can be mounted on a villa roof in an urban area. -:) > > > > Sorry if I was not clear, it is difficult to explain. > > > > Hakan > > > > > > At 04:10 07/01/2004, you wrote: > > > > > > >Appal Energy wrote: > > > > > > > Hakan, > > > > > > > > Here are a couple of continental options. The 50 kw is not in > > > > production > > > > yet. > > > > > > > > > <<http://www.bergey.com/excel.html>http://www.bergey.com/excel.html>http://www.bergey.com/excel.html > > > > > <http://www.bergey.com/Products/XL50.html>http://www.bergey.com/Products/XL50.html > > > > <http://www.bergey.com/><http://www.bergey.com/>http://www.bergey.com/ > > > > > > > > They've been in commercial production for close nigh to twenty-five > > > > years. > > > > > > > > Todd Swearingen > > > > > > > > > > The Bergeys are very robust machines. Their longevity in business > > >is a tribute to their quality, and if I could afford one, I'd own one! > > >Interestingly, however, I remember an article several years ago (I think > > >it was in Home Power, if I'm not mistaken) in which the Bergeys were > > >criticized for producing less power than was claimed by the > > >manufacturer. > > > > > > Here are some additional small turbine links, if anyone is > > >interested: > > > > > > > <<http://www.windenergy.com/>http://www.windenergy.com/>http://www.windenergy.com/ > > > > > > > <http://www.wvt.de/englisch/html/energie_1.htm>http://www.wvt.de/englisch/html/energie_1.htm > > (This one looks > > >really cool!) > > > > > > > > > ><<http://www.hydrogenappliances.com/windpower.html>http://www.hydrogenapp > liances.com/windpower.html>http://www.hydrogenapplia >nces.com/windpower.html > > >(Beware--their > > >address is a mail box only!) > > > > > > Have fun! > > > > > > > > >robert luis rabello > > >"The Edge of Justice" > > >Adventure for Your Mind > > Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://archive.nnytech.net/index.php?list=biofuel Please do NOT send Unsubscribe messages to the list address. 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