Wind turbine

Looking somewhat like a giant reed gently swaying in the wind, the new Vortex bladeless wind-driven generator prototype produces electricity with very few moving parts, on a very small footprint, and in almost complete silence. Designed to reduce the visual and aural impact of traditional spinning-blade turbines, this new device takes advantage of the power contained in swirling vortices of air. Read More

Last year we reported on the ongoing sustainable makeover of the Eiffel Tower's first-floor. Work continues on turning the tower green, and as part of this process, New York's Urban Green Energy (UGE) recently installed two wind turbines that should reduce the carbon footprint of the iconic landmark. Read More

Conventional offshore wind turbines are expensive and complicated pieces of machinery – in a large part because of their complex and maintenance-intensive gearboxes. Dr Shahriar Hossain from the University of Wollongong in Australia is looking to slash production costs and drastically improve efficiency replacing these gearboxes with a superconducting coil. Read More
Given that the sterotypical image of the world's northern regions involves howling winds, why don't we see more wind turbines in such places? Well, it's largely because those turbines' blades would ice up a lot. The added weight could cause them to turn more slowly, to break down by throwing off their balance, and it could cause their operators to shut them down during potentially icy weather. The European Union Windheat Project is aiming to change that, with a carbon nanotube-based de-icing system. Read More
Generally speaking, the peculiar appearance of wind turbines coupled with the fact they perform better when up high and out in the open sees them banished to uninhabited countryside, or even out to sea. But a French entrepreneur believes that sculpting them in the form of an artificial tree could lead to wider adoption in urban centers, making use of low winds that circulate around buildings and streets. Read More
Offshore wind power in the United States is nowhere close to meeting the potential this renewable energy form has to offer. There are a myriad of reasons why, including lack of information on energy-harnessing possibilities at specific sites. The US Department of Energy’s Pacific Northwest National Laboratory (PNNL) is looking to change this, by dropping two very advanced data-collecting buoys into coastal waters. Read More
The AirEnergy3D is an open source, 3D-printed, portable wind turbine prototype whose creators claim will be able to generate up to 300 W of power. Designed to be easily assembled and disassembled without tools, the device is intended to be compact enough to be transported in a backpack, allowing it to be taken camping or anywhere else that there is a breeze and no access to the electricity grid. Read More
Reseachers at Harvard University have developed a way to 3D-print a cellular composite with record lightness and stiffness using an epoxy resin. This marks the first time that epoxy is used for 3D-printing, and the advance could lead to the development of new lightweight architectures for more efficient wind turbines, faster cars, and lighter airplanes. Read More
When we think of wind power, we generally think of huge wind turbines sitting high atop towers where they can take advantage of the higher wind speeds. But Maryland-based Solar Wind Energy, Inc. is looking to turn wind power on its head with the Solar Wind Downdraft Tower, which places turbines at the base of a tower and generates its own wind to turn them. Read More
Although it's getting increasingly common to see solar panels on the roofs of homes, household wind turbines are still a fairly rare sight. If Rotterdam-based tech firm The Archimedes has its way, however, that will soon change. Today the company officially introduced its Liam F1 Urban Wind Turbine, which is said to have an energy yield that is "80 percent of the maximum that is theoretically feasible." That's quite the assertion, given that most conventional wind turbines average around 25 to 50 percent. Read More