A Finnish invention, a vertical axis Savonius wind turbine can be further improved shows a new study. Due to the mechanical modification of the rotor the power coefficient was shown to be increased by ...

Small vertical axis wind turbines (VAWTs) possess the ability to effectively operate in the presence of high turbulent flow, which makes them ideal energy harvesting devices in urban and suburban ...

If you’ve got a property with some outdoor space and plenty of wind, you might consider throwing up a windmill to generate some electricity. Indeed, [The Broject List] did just that. Only, his ...

The simplicity of the Filippini Vertical Axis Wind Rotor (FVAWR) makes it attractive for a variety of duties in countries in the Third World. This paper concentrates on measurements that have been ...

The Savonius turbine is a vertical axis wind turbine (VAWT) suitable to be mounted on rooftops of highrise buildings. It is a viable technology for power generation. The operating parameters and rotor ...

Sleek wind machines both on land and in the ocean intrigue many people. The units provide clean energy and contribute nothing to climate change. However, the early history of wind power in the U.S.

Compact (H-type) vertical-axis wind turbines (VAWTs) are not as familiar as their horizontal-axis, propeller-type cousins. The two have their origins in the windmills of the 12th century, and even ...

Mariah Power's Windspire looks to make wind power more accessible with a $5,000 turbine that can work in suburbs, cities, and the country. Martin LaMonica is a senior writer covering green tech and ...

Although wind power energy production in 2010 was estimated to be only about 2.5 percent of worldwide electricity usage, wind turbines are considered a mature technology with many experts suggesting ...

Wind turbines attached to floating buoys can harness stronger, more sustained winds in the open ocean. But the floats now used for such deep-water installations may prove prohibitively expensive ...

With graceful, sail-like blades that turned in the wind like white corkscrews, Helix Wind's vertical axis wind turbines (VAWTs) captured the imagination of bloggers and the tech press in 2007. The San ...