wind

As the Cleveland Indians play their home games, an experiment in industrial design will be spinning just overhead.

The ball park is hosting a wind turbine that uses a helix-shape tower to squeeze more power out of conventional wind turbines. The structure increases the wind speed, a technique companies have long pursued to lower the cost of wind energy.

The Progressive Field installation is a prototype designed by Majid Rashidi, a professor at Cleveland State University. The 40-foot-high, 18-foot-wide helix turbine will be installed for a year for testing and is expected to generate 40,000 kilowatt-hours a year, or … Read more

Two technology artists who head Google's "Big Picture" visualization research group debuted a new project this week that shows a time-lapse animation of wind speeds across the U.S.

"An invisible, ancient source of energy surrounds us--energy that powered the first explorations of the world, and that may be a key to the future," the artists wrote in a post yesterday. "This map shows you the delicate tracery of wind flowing over the US right now."

The black map, simply named "Wind Map," displays white streaks that show varying wind speeds … Read more

Startup Altaeros Energy is going up for more energy.

The company yesterday said it has successfully tested a prototype of its airborne wind turbine, which is a traditional small wind turbine enclosed in an inflatable shell. The Boston-based company is seeking to partner with others to build and test a commercial-scale turbine.

Altaeros Energy is one of a few companies developing systems to capture the stronger and steadier winds at high altitudes. Others include Makani Power, Joby Energy, and Windlift.

For its prototype test in Maine, Altaeros Energy placed a Southwest Skystream turbine, which is normally placed on a pole, … Read more

It's a flying wing, a power generator, and a robot.

Startup Makani Power is developing a wind turbine that's a big break from convention. If it works, it could slash the cost of wind power, particularly offshore.

The company has nearly finished testing flights for a 30-kilowatt prototype turbine and will soon begin work on a larger, commercial-scale system, according to CEO Corwin Hardham. The goal is to complete development and testing that full-scale, 600-kilowatt system by 2016, he said.

Makani Power, which was originally funded by Google and later by the Department of Energy's ARPA-E agency, … Read more

In the old days, renewable energy was the best option available. Then it became a social statement. Now with fits and starts, it's creeping toward the mainstream.

To give CNET readers some perspective on renewable energy, we've assembled a slideshow on renewable energy through the ages, its present form, and some ideas as to where it's going.

The history of using the wind, sun, and water reaches back to antiquity. But what's remarkable about many renewable-energy technologies being pursued today--solar, wind, geothermal, and bioenergy--is that today's product ideas often have roots in research begun after … Read more

Although black holes are invisible, they can be found by watching their effect on nearby gas and stars. For stellar-mass black hole IGR J17091, this is exactly what is happening. Its gravity is pulling gas away from a companion star and this gas has formed into a disk around the black hole, which is driving off wind.

However, there's something special about IGR J17091--the wind it's creating is the fastest wind ever discovered blowing off a disk surrounding a stellar-mass black hole.

In most other ways IGR J17091 is pretty much a ho-hum black hole: it's located … Read more

Sony is looking to revolutionize the inefficient way in which we consume power.

A new concept video from the electronics giant shows how we could use power more efficiently in the year 2030 by switching to smart outlets with authentication and wireless charging on a broad scale, assuming we survive the zombie Mayan apocalypse.

The prototype power outlet, integrated with a short-range wireless FeliCa transmitter (and a new RFID over power line technology), allows the user to swipe a pay card across the faceplate and pay for energy on the spot. What makes it truly interesting is if humankind keeps progressing towards alternative energies (such as wind, solar, and biomass), then our outlets could give us options as to what source from which we obtain our power. The video description notes that with this outlet, "the user can actively control and manage power consumption on a user basis as well as on a device basis." … Read more

I'm hoping the whole celebrity-branded headphone shtick will soon run its course, but I have to admit Monster's new Earth Wind & Fire Gratitude in-ear headphones are pretty spectacular.

Earth, Wind & Fire was one of the most popular funk bands of the 1970s, so naturally they were primed to attach their name to a headphone. That's fine, but I have to judge a headphone on its build and sound quality, and the Gratitude is a very decent headphone indeed. The heavy gold accents on the earpieces were a little gaudy for my taste, but that's … Read more

By building a wind turbine to power a hydrogen production and fueling station, a little hamlet in Long Island is positioning itself as the bellwether for carbon-neutral transportation.

The town of Hempstead, N.Y., on Long Island erected a 121-foot-tall turbine last December on the township's Department of Conservation and Waterways land to take advantage of powerful Atlantic winds and power the hydrogen and natural gas fueling station it built in 2009. The turbine can generate up to 180 megawatts of power per year, and presents an estimated hydrogen fuel and energy cost savings of $40,000 per year. … Read more