Analyzing building-integrated wind

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Excerpt: Russell M. Tencer/CEO, Wind Products LLC/New York, NY Controversy seems to follow the installation of wind turbines on building rooftops, and for good reason. On one hand, there can be considerable wind with harvestable kinetic energy at roof level. Accessing this clean, renewable sou …

Novel transmission to give small turbines a boost

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Excerpt: A continuously variable transmission with features similar to planetary gearbox could improve energy capture for smaller wind turbines along with reducing capital costs. The transmission works by changing the contact position on a set of planetary balls on which input and output disks ride. Continuo …

Wind-turbine manufacturer adds solar interest, changes name

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Excerpt: Earth Turbines Inc, Williston, Vermont, the state's only manufacturer of small scale grid-connected wind and solar tracking systems, announces a corporate name change to AllEarth Renewables Inc. "Our company is dedicated to developing new wind and solar technologies," says David Blittersdor …

Small Wind Certification Coming Soon

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Excerpt: Small wind turbines currently lack any formal industry standards or certification. This creates a market scenario in which products are given misleading power ratings at varying speeds (the higher the wind speed the more power) and  durability ratings based only on internal assessment by the manufa …

Vertical Axis Turbine Powers Cell Towers

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Excerpt: Cell phone towers may have a new friend here soon as Helix Wind Corporation gave an update today on its efforts to provide cost-effective renewable energy solutions to telecommunications companies. Specifically, Helix’s wind turbines are ideal ways to lower the costs of operating expenses asso …

No Shortage of Amusing Wind Turbine Ideas

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Excerpt: Arizona State architectural student, identified only as Joe, says his idea is to retrofit horizontal steel structures that currently hold freeway signs with two horizontal-axis wind turbines powered by the turbulence from passing cars. (Joe admits borrowing the turbine design from U.K. based quietre …

Cleanfield Energy adds Smart controls to turbines

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Excerpt: A 3.5kW vertical-axis wind turbine is said to produce clean, reliable energy for residential and commercial applications. The system can mount on flat rooftops, as well as traditional towers and poles. The V3.5 from Cleanfield Energy, Ancaster, Ontario, Canada, can be installed without the need to c …

Vertical-axis turbines starts generating at less than 3 m/s

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Excerpt: There are two basic types of wind turbines: vertical and horizontal axis. Each has pros and cons. Horizontal-axis turbines tend to capture more power per square meter of wind, but are noisier, vibrate more, present hazards to birds, require more empty space around them, and must be elevated away fro …

Small and Community Wind Conference, Nov 3 to 5, 2009 Detroit

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Excerpt: An AWEA sponsored conference and exhibition called AWEA Small and Community Wind will be held in Detroit, Mich., November 3 to 5, 2009. Join wind industry leaders, new entrants to the industry, project developers, economic development groups, municipalities, land owners and other allied organization …

Turbine said to tolerate 168 mph winds

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Excerpt: A high-wind version of a vertical axis wind turbine is said to withstand jetstream-like 168 mph winds and extreme weather conditions. The High Wind Windspire from Mariah Power, Reno, Nevada, will feature a shorter version of the company’s giromill straight blade design and its current generato …