Posts Tagged ‘wind energy’
How to build a better wind farm
IOWA STATE (US) — A turbine only ten inches high is helping researchers understand how hills, valleys, and tower placement can affect the productivity of onshore wind farms. Continue…
Tuesday, December 20, 2011 12:23 - 2 Comments
Science & Technology - Nov 28, 2011 12:56 - 2 Comments
Electrode for durable batteries on the grid
STANFORD (US) — A new type of battery electrode could make large-scale storage for solar and wind power more feasible. (more…)
Earth & Environment - Jan 20, 2011 14:06 - 1 Comment
Wind turbines need more rotor room
JOHNS HOPKINS (US) — Wind farm builders should space their turbines much further apart to generate power more efficiently, wind tunnel tests and computer simulations show. (more…)
Earth & Environment - Jun 15, 2010 11:33 - 3 Comments
Climate change remains hot topic in UK
CARDIFF U. (UK)—Despite a decline in concern about climate change, the majority of the British public still believe the climate is changing and are prepared to act, a new survey shows. (more…)
Earth & Environment - May 18, 2010 12:30 - 5 Comments
Wind farm design inspired by school of fish
CALTECH (US)—In current wind farms, all of the turbines rotate in the same direction. But while studying the vortices left behind by fish swimming in a school, fluid-dynamics expert John Dabiri noticed that some vortices rotated clockwise, while others rotated counter-clockwise. (more…)
Science & Technology - May 12, 2010 16:42 - 1 Comment
Hinged pole could keep the lights on
IOWA STATE (US)—Engineers have designed a new type of transmission pole that is hinged, making it easier to install and repair. It also resists the kind of cascading failures that can lead to widespread power outages. (more…)
Earth & Environment - Nov 17, 2009 17:56 - 1 Comment
Taking America’s energy temperature
RUTGERS (US)—Of the estimated 1,000 energy-related public opinion polls conducted during the last 20 years, environmental policy expert Michael Greenberg says there are two basic types: polls that include energy questions among a range of societal issues and hypothesis-driven surveys that measure preferences and try to link them to underlying factors. (more…)
Earth & Environment - Oct 23, 2009 17:25 - 3 Comments
Totally clean and green by 2030?
STANFORD (US)—Most of the technology needed to shift the world from fossil fuel to clean, renewable energy already exists. A new report suggests that implementing that technology requires overcoming obstacles in planning and politics, but doing so could result in a 30 percent decrease in global power demand. (more…)
Earth & Environment - Sep 23, 2009 4:38 - 2 Comments
A better way to turn out turbine blades
IOWA STATE (US)–Researchers are working to develop new, low-cost manufacturing systems that could improve the productivity of turbine blade factories by as much as 35 percent. (more…)
Earth & Environment - Aug 11, 2009 4:00 - 0 Comments
Wind energy that’s for the birds
“Conducting this research will help the wind industry make informed, science-based decisions about where future wind energy projects can be built and how they can be operated to minimize the impact on migrating wildlife, while still providing much-needed alternative energy,” explains John Fitzpatrick, director of the Cornell Lab of Ornithology.
Earth & Environment - Jul 10, 2009 11:50 - 0 Comments
Pairing radar, acoustics to track birds near wind farms
This animation illustrates the use of a network of surveillance weather radar to record nocturnal migrating birds, bats, and insects in the continental U.S. from sunset to sunrise Oct. 1, 2008. The blocky green, yellow, and red patterns, especially visible on the east coast, represent precipitation; but within an hour after sunset, radar picks up biological activity, as seen in the widening blue and green circles spreading from the east across the country. The birds, bats, and insects take off, fly past, and get sampled by the radar beam. Note, the black areas on the map do not represent places without birds, necessarily, but rather places where radar does not sample.
Earth & Environment - Jul 6, 2009 16:51 - 0 Comments
Could ocean wind be an energy bonanza?
A new study finds wind energy over the planet’s oceans is a vastly underutilized renewable resource.
Earth & Environment - Jun 29, 2009 16:49 - 2 Comments
As global temps rise, will winds stall?
“We see this trend toward slower wind speeds and our unanswered question is whether this is part of global warming or something else,” says Bill Gutowski, one of three Iowa State University researchers involved in a U.S. climate study.
Earth & Environment - Mar 9, 2009 19:05 - 0 Comments
Wind tops list as most promising renewable energy source
STANFORD (US)—The answer to the U.S. addiction to oil is most likely blowing in the wind and shining in the sky and rippling in the water. A new study suggests wind, solar, and water offer the most potential as sources of clean, renewable energy.
