Priligy online now, save money

MAY 04

Recent Comment

"I have some land in northern Arizona and only here cialis lowest price I am interested in using my l..."

View all Comments

Wind Farm Protecting Birds with NASA Technology

Protecting wildlife and existing ecosystems is a growing concern as renewable energy projects spread across the country. Environmentalists are often torn between the issues of cialis uk climate change and conservation.

The Peñascal Wind Farm in Texas, a 202-MW wind farm that lies right on a heavily-traveled migration path, has found a way to balance both. It has started using powerful radar technology developed for NASA and the Air Force that detects birds flying four miles away and stops the turbines if there is a danger of the birds flying into the blades.

The radar analyzes weather conditions, the birds' altitude, numbers and visibility to determine if the birds will fly in the it's great! uk viagra sales path of the blades. During inclement weather, birds fly lower than in normal conditions and can become disoriented, which raises the risk of them flying into the turbines. During normal weather, birds usually fly well above the height of the wind farm. Once the birds have passed, the radar system restarts the turbines.

During the fall of 2007, a study showed about 4,000 birds an hour passed over the Peñascal farm, but nationally only about 7,000 birds are killed each year by turbines. The risk to birds posed by wind farms is still low compared to other obstacles during migration, but it will definitely need to be a consideration as more wind farms are built and this radar system seems like a great solution.

via Guardian

Hits: 10504
Comments (7)Add Comment
written by Seth, May 05, 2009
Hank, you might think about taking words that may be difficult to pronounce and uk cialis break them down phonetically so that someone can figure it out....just a thought. Happy b-day DFTBA
written by John Rowell, May 05, 2009
Maybe solutions such as this will appease those who use the cialis purchase "bird killer" excuse to oppose wind in this way it's a good thing.

However, when you consider the relatively tiny number of bird fatalities caused by wind farms ... and then remember that air pollution from dirty coal-burning power plants actually kills far more birds, humans, and other animals in a slow painful manner, it's clear when you do the math that wind farms actually save many more birds.
The Birds
written by Ray-ray, May 13, 2009
Birds fly into glass buildings every day. We need to have a radar system that will lower buildings underground to avoid any bird strikes.
What about the bats then
written by Nicola Terry, May 26, 2009
I gather that wind turbines are at least as dangerous to good choice viagra from canadian pharmacy bats as to birds:
I am not sure if the same solution would apply as bat behaviour is buy cialis online from canadacheap cialis tablets different from birds. However, perhaps the bird detecting radar could be combined with bat scaring radar as mentined in the bbc article.
Excuses and not Getting the Point
written by David W. Potter, June 20, 2009
Rationalizing mortalities from various sources to justify other sources is a silly grade school distraction: 'oh, this is less than that--oh, boy.' Human activities cause vast mortalities among animals, and picking and choosing comparisons misses the point entirely.

I should think that the click now levitra how much same RADAR can detect bats, too, and South Texas is a migratory route for bats, also. If not, a major omission on the part of the developers--but their PR people perhaps handily left it out.

This technology needs to be required for use everywhere windfarms are proposed. Otherwise, bird and bat mortalities will still increase, as more windfarms are built.

The article states the South Texas site recorded 4000 birds per hour, but "...only about 7000..." are killed nationally per year. How much bias can be implied here? Gee, even if only a hundredth of the hourly estimate (~40) were killed per hour, what would the annual rate of mortality be? For one windfarm? And what will be the estimated rate be as more windfarms are built? Intentionally dismissive and misleading reporting is essentially dishonest and has no place.

Despite the apparent benefits here, rooftops are still far better places for turbines, which have demonstrated a vanishingly small rate of mortalities, and PV, and both have the benefit of decentralization. We can do better--we must do it's great! cialis tadalafil better.
written by Fred, July 08, 2009
Wow these turbines have a lot of impact on birds
wind farming
written by jayne, July 15, 2009

Write comment

security code
Write the displayed characters


Are you an EcoGeek?

We've got to keep 7 billion people happy without destroying our planet. It's the biggest challenge we've ever faced....but we're taking it on. Are you with us?

The Most Popular Articles