New gearless wind turbine from WindTronics and Honeywell said to generate electricity at one-third the cost per kWh of any other wind turbine.
Unlike the more traditional geared systems found in both horizontal and vertical axis wind turbines, the new 2kW wind turbine from Honeywell uses a gearless blade tip system. A wind turbine that has no gears and no hub is lighter, quieter, has fewer moving parts, and is arguably more suited for rooftop applications than those that do.
The fan-like Honewywell WT6500 turbine, which is being sold at selected Ace Hardware stores in February of 2010, will generate 2,000 kilowatt-hours of electricity annually for a home with a strong wind resource; and up to 2,700 kWh for a location with a strong (class 4) wind resource. Depending on wind speed and energy use, a single unit can be expected to generate up to 20 percent of the annual electricity for the average American home.
Including tax and installation, the entire cost of the turbine will range from about $7,000 to $8,000, which isn’t exactly cheap for a turbine of its size. Or is it?
Honeywell's new small wind turbine: lighter and quieter than most. (Image: Windtronics)
With a federal small wind tax credit of $2,000 for a 2 kW wind turbine, plus other state and local incentives, the total price of the WT6500 is quite reasonable, especially if it lives up to its billing as a low-wind rock star. You see, what sets the Honeywell Wind Turbine apart from others of similar size is that it starts spinning at winds of just 1 mph and generating electricity at 2 mph; generating power in low wind conditions, when others do not.
In fact, Michigan-based WindTronics say it generates electricity at one-third the cost per kWh of any other wind turbine (in both class and size).
A gearless turbine harnesses energy from the tips of the turbine blades, where they are moving the fastest. The low-vibrational impact of the gearless wind turbine means that the 95-pound, 6-foot diameter unit can be mounted on a pole, a rooftop, or even attached to a chimney — although I’d want someone else to test that last one before I’d try it.
According to CNET, Windtronics has big plans to make small wind a more viable option for the general public. And with the company expecting to produce an estimated 50,000 units in its first year, they might just be able to do that.
Until the WT6500 is available at your local Ace–and it may be on the truck as I write–you’ll have to settle for the latest glimpse of it in the wild.
Background sources: Jetson Green; CNET
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Don’t spend any time on this yard art until you read Paul Gipe’s review
Paul gipe on the Earthtronics 6500
http://www.wind-works.org/SmallTurbines/Windtronics760EstimatedGeneration.html
The turbine is definitely not a 2 kW turbine as suggested on the web site. At best it is a 1 kW turbine and more properly called a 500 W turbine
At rooftop heights the turbine may produce 850 kWh/yr in a Class 3 and 1,050 kWh/yr in a Class 4 wind resource. Earthronics claims that the turbine will produce 2,000 to 2,500 kWh/yr respectively. Earthronics claims exceed likely generation by 2.4 times.
Steve,’
Thanks for the information. I’ll be sure to check out Paul Gipe’s review. Having had a few conversations with Paul and followed his work for several years now, I’m sure he gives it a thorough treatment.
But I think it begs the question: why isn’t there some sort of third party or independent verification of wind turbine output claims? With all kinds of new manufacturers jumping into the small wind game–thanks to the small wind tax credit–it seems that independent analyses and ratings of products would be helpful.