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• These vertical wind turbines will not do nearly as well as a horizontal wind turbine. It's a fact that pound for pound, dollar for dollar, watt for watt... The standard windmill design used by large commercial wind farms if far more productive than these FAD vertical wind turbines. Look at YouTube for WindEnergy7 http://www.youtube.com/user/WindEnergy7 and this is the type of effective design that you will see succeeding on wind towers, roadside billboards, and on homes across the US.
  
  If the vertical wind turbines were practical and logical the big utility companies would be using them instead. These vertical designs were first patented in the 1930's and unless the laws of physics change to deny the fact of backside wind resitance, these vertical mills are going nowhere. Think about it, wind blows 1 direction at a time. As one side catches wind, what about the other side? It's called resistance. Like riding a bicycle uphill or agains a wind. Like driving a car with the brakes on? Sound effective to you? In reply to: "Powering cell phone towers with wind"

  November 29, 2009

  0 replies

• WindEnergy7.com already has beaten these guys to the market, systems are running installed all over now. For the same money you can get a system that has solar panels with it as a wind/solar hybrid system.
  
  WindEnergy7 turbine is roof mount, modular, hybrid, and leverages more proven turbine technology, like using stainless steel parts instead of plastic etc. Windtronics conceal the whole mounting problem of roof mounted turbines, that?s main reason I was into WindEnergy7 is that the problems of vibration and noise were solved, we invented solutions and filed patent pending on the mounting apparatus and method. If anyone is serious about this technology they should look at the WindEnergy7 hybrid wind/solar kits for the home. WindEnergy7-com In reply to: "Inside a small wind-turbine beta test"

  July 22, 2009

  1 reply

• I particularly like the comment about "He said that mounting the turbine on a house should not cause vibration because the unit is lighter than most turbines." I design, develop, and manufacture home wind turbines for roof mount. Consider the weight vs the square feet and the amount of wind resistance. This thing will not hold up to high winds IMO.
  
  Additionally, all the methods of roof mounted turbines prior to WindEnergy7 invention failed. Roof turbines can vibrate and make noise. The patent pending method and apparatus of WindEnergy7 has solved the way to do this right. Our turbines have a survival speed of over 130 mph. It will easily weigh 3 to 4 times this device and the weight is important. A real turbine that will last long enough to be worthwhile should have plenty of stainless steel, should be durable and heavy duty hardware ike the home wind turbines at WindEnergy7.com In reply to: "Small wind turbine works at low wind speeds"

  June 14, 2009

  0 replies

• I am a designer, developer, and fabricator of small wind energy products that my company sells online. We have a growing dealer network of individuals who use my products. Customers have found the kits to be easy to deploy and understand. Many customers have found it easy to become customer/dealers.
  
  It's interesting but try and measure wind before and after it has to go through that screen. Then measure wind before and after it has been forced to turn down a vent. Then measure wind that has another redirect before exiting. Without measure I can tell you it wastes so much kinetic energy right there that it is inefficient in processing most power with least wind, the goal.
  
  The rooftop unit WindEnergy7.com has is a DIY homeowner kit, has everything with it as a matched kit of components. It's really a handyman level install, many folks put it in themselves and many have an electrician finish it up for safety. Pay by personal or company check, credit card is OK too, takes me about 1 week from cleared payment to ship, UPS Ground.
  
  The DIY <a href="http://windenergy7.com/turbines/?p=44">Home Wind Turbine wind/solar hybrid kit</a> comes with the whole Wind Turbine, Blades, Cone, Tail, Roofmount Kit, Charge Controller, Two Solar Panels, Hardware, and Inverter. The whole Kit of matched components. Did you see the blog post about the 30% federal tax break law, as soon as word got out on that new tax incentive just passed, more interest and buyers came on board immediately.
  
  Our turbines are using stste of the art best PROVEN technology employed in large productive utility scale turbines, scaled down to a homeowner DIY kit. We also make a kit that goes on a flat roof that should do much more with much less. I can't see something with this inefficient design competing with our products. Neat idea though. In reply to: "Urban wind power inspired by ancient Persia"

  October 15, 2008

  0 replies

• That point of view is as ignorant as the propaganda about birds flying into wind turbines. i work for WindEnergy7.com and I know a little about wind turbines and how effective they are. A wind turbine will ROI in 7 to 10 years, will pay for itself. This works on any scale, a home, a farm, a commercial wind farm. My friend, look again, think it through, wind power is great.
  
  Your points about Global Warming are well taken IMO. I put in turbines because theyt are a great investment. They make cheap power and anyone can have one. Can anyone put a nuclear plant, a cole plant, a hydro dam, in their backyard. Wind is almost everywhere! I sell turbines to power a home that cost less than most people will pay for a car!
  
  Read about these wind farms, first ones in Texas, power flows daily for years and years, equipment paid for itself. There's no problem with this, that's why Texas has now deployed twice what California has. This is no fad, this was succeeding BEFORE any global warming hysteria and should not be lumped with all that...
  http://windenergy7.com/turbines/?tag=culberson-county-wind-farm In reply to: "Siemens to open Colo. wind turbine R&D center"

  August 2, 2008

  0 replies

• I work for WindEnergy7 and we have interest in vertical wind turbines and their development. Thus far, in all the designs we reviewed the performance is not as robust as the standard HAWT turbines. Mariah has contacted us about getting involved with sales of the Windspire in our business. WindEnergy7.com is mainly are involved in projects of development, manufacture, service, and marketing of small and medium sized wind turbines. It's an interesting design idea and I wish them luck with their business. Nice to see forward thinking investors take part in development of small wind turbine technology. Anyone with an acre or more and a wind condition averaging over 10mph should be getting a residential wind turbine IMO. In reply to: "Small wind: Mariah Power lands cash for spire-shaped turbine"

  August 2, 2008

  0 replies