Bats Death near Wind Towers

The mystery of why large numbers of migratory bats are killed by certain turbines of southern Alberta’s wind farms every year may have been solved by a comprehensive University of Calgary research project that has yielded answers to the problem.

A bat mortality study supervised by U of C biology professor Robert Barclay that began in 2006 has determined that the vast majority of bats found dead below turbines near Pincher Creek suffered severe injuries to their respiratory systems consistent with a sudden drop in air pressure – called barotrauma – that occurs when the animals get close to turbine blades. The results will be published in the August 26 online edition of Current Biology. The study shows that 90 per cent the bats examined after death showed signs of internal hemorrhaging consistent with barotraumas while only about half of the bats showed any evidence of direct contact with the blades.

"Because bats can detect objects with echolocation, they seldom collide with man-made structures," said PhD candidate and project leader Erin Baerwald. "An atmospheric-pressure drop at wind-turbine blades is an undetectable—and potentially unforeseeable—hazard for bats, thus partially explaining the large number of bat fatalities at these specific structures,” Baerwald explains. "Given that bats are more susceptible to barotrauma than birds, and that bat fatalities at wind turbines far outnumber bird fatalities at most sites, wildlife fatalities at wind turbines are now a bat issue, not a bird issue."

The respiratory systems of bats and birds differ in important ways, in terms of both their structure and their function. Bats' lungs, like those of other mammals, are balloon-like, with two-way airflow ending in thin flexible sacs surrounded by capillaries, the researchers explained. When outside pressure drops, those sacs can over-expand, bursting the capillaries around them. Bird lungs, on the other hand, are more rigid and tube-like, with one-way circular airflow passing over and around capillaries. That rigid system can better withstand sudden drops in air pressure.

Nine species of bats are found in Alberta, three of which migrate through the province each year. The majority of bats killed at wind turbines are the migratory bats that roost in trees, including hoary bats, eastern red bats, and silver-haired bats. While little is known about their population sizes, the researchers said their deaths could have far-reaching consequences. Bats typically live for many years, in some cases reaching ages of 30 or more. Most also have just one or two pups at a time, and not necessarily every year.

"Slow reproductive rates can limit a population's ability to recover from crashes and thereby increase the risk of endangerment or extinction," said Barclay, noting that migrating animals tend to be more vulnerable in the first place.

All three species of migratory bats killed by wind turbines fly at night, eating thousands of insects—including many crop pests—per day as they go. Therefore, bat losses in one area could have very real effects on ecosystems miles away, along the bats' migration routes.

Baerwald said there is no obvious way to reduce the pressure drop at wind turbines without severely limiting their use. Because bats are more active when wind speeds are low, one strategy may be to increase the wind speed at which turbine blades begin to rotate during the bats' fall migration period.

The study was initiated by TransAlta after the company’s wind farm operators noticed bat carcasses below turbines and approached Barclay, an internationally-recognized bat expert, for advice.

“It was important for us to determine as much as we could about this issue,” said Jason Edworthy, Director, Stakeholder Relations for TransAlta. “Ultimately, it’s a situation we’re working hard to alleviate. Ongoing research with the University is seeing some real results in terms of mitigation of collisions.”

The paper “Barotrauma is a significant cause of bat fatalities at wind turbines” by Erin F. Baerwald, Genevieve H. D'Amours, Brandon J. Klug and Robert M.R. Barclay will be available online at: www.current-biology.com

American Energy Act

http://www.govtrack.us/data/us/bills.text/110/h/h6566.pdf

Above you will find the link to the Bill that the Democratic party fears so much.
All the GOP wants is an up or down vote. So why is Nancy so worried about this bill?

The Time is now!

Myself I am done waiting for the right person and the right time to move renewable energy forward!
As the GOP has done on the floor of the House Deeds not words are the call!
They are fighting for the American Energy we must join the effort.
The call is out join this fight!

Yes I have been lax in keeping up this blog but that has changed as of now! I will be writing about two very exciting projects that myself and a handful of crew will be moving on.
These two project are just a sample of what is to come

Check the web site out

http://www.alternativeenergy.com/

Check the site out it is a Ning site interesting what the owner did with it.
The Redhead on Girls Gone Green is great.

Interesting site

http://www.survivalblog.com/index.html

Any reading in the press will tell you that we need to be prepared to take care of ourself when events like flooding occur.
This site will help you prepare for those times.
Also everyone of us should have basic first aid training, do you?

Report from Windpower 2008 (Vickerman)

Please read this very interesting report from Windpower 2008 @ Houston TX

Report from Windpower 2008 and the
Wind Powering America Summit
Houston, Texas

Michael Vickerman
RENEW/Wisconsin Wind Working Group
June 11, 2008


General impressions: AWEA's 2008 conference was an unceasing hive of
activity, especially on the trade show floor. RENEW was one of 15 Wisconsin
firms and organizations that participated in the Wisconsin Wind Works
exhibit space. Other participants were: Aarowcast (Shawano), Ambassador
Steel (Auburn, IN), Badger Transport (Clintonville), Bassett Mechanical
(Kaukauna), EcoEnergy (Madison), Lakeshore Technical College (Cleveland),
Lapham-Hickey Steel (Oshkosh), Lindquist Machine Corporation (Green Bay),
Merit Gear (Antigo), Natural Resources Consulting (Cottage Grove), Oscar
Boldt Construction (Appleton), Orion Construction Group (Appleton),
Trace-A-Matic (Brookfield), and Wausaukee Composites (Wausaukee). By pooling
our resources, we were able to secure a centrally located and highly visible
space on the trade show floor. Jerry Murphy and his team at The New North
did a fantastic job of organizing this pavilion and scheduling the staffing.
With all of our materials displayed under one sign we succeeded in
projecting a sense that Wisconsin companies are comfortable doing business
with each other. I hope we do it again next year in Minneapolis.

Plenty of Wisconsin companies had their own exhibit booths, including
Johnson Controls (Milwaukee), Michels Wind Energy (Brownsville), Tower Tech
at the Broadwind booth (Manitowoc), Manitowoc Crane (Manitowoc), Foley and
Lardner (Milwaukee), Michael Best and Friedrich (Madison), Shuttlelift
(Sturgeon Bay), Snap-on (Kenosha) and Trachte (Oregon). No doubt there were
other Wisconsin companies displaying at the exhibit hall.

I did not see any representatives from the State of Wisconsin at the
conference/trade show. The absence of an official state presence was
heightened by the profusion of other state pavilions--Iowa, Minnesota,
Michigan, Ohio, Oklahoma, Texas and Kansas--which were staffed by agency
employees and funded with public dollars. Nor did I see any representatives
of Wisconsin ports. I soon learned the reason why.

*********************************************************************

Transportation: My visit with Lone Star Transportation was eye-opening to
the say the least. Lone Star is Vestas' preferred heavy-hauler. The
exhibitors there described the difficulties they endured in dealing with the
restrictions state DOT placed on the transportation of oversized equipment
to We Energies' Blue Sky Green Field project. State DOT imposed a
prohibition on transporting oversize loads during the day, which made it
impossible to truck the blades, nacelles and tower sections directly to the
erection sites. We Energies had to expand the laydown area behind its
operations center in order to accommodate deliveries of the equipment. Some
792 pieces of equipment had to be offloaded in the yard and then reloaded on
separate vehicles and taken to the 88 turbine sites. Double-handling this
equipment is expensive. WE estimates that the restrictions on transportation
added nearly $4 million to the cost of constructing Blue Sky Green Field. No
doubt they resulted in costs to other companies. The same restrictions also
applied to the Forward project, which was going up at the same time.
According to Lone Star, Wisconsin is very much the outlier when it comes to
regulating transportation of oversize wind energy equipment.

In regards to the Cedar Ridge project now under construction, state DOT will
allow limited daytime transportation of oversize equipment. However, in
order to reduce the cost of transporting turbines, nacelles and blades
through Wisconsin, Vestas decided to ship that equipment down to the Port of
Beaumont in Texas, and transport it by rail to Green Bay. Much of it has
already arrived, sitting in a rail yard waiting to be transported down to
Fond du Lac County. These loads could have been shipped to either Milwaukee
or Marinette-Menominee. No wonder I didn't see any Wisconsin port
representatives at the conference!

Wisconsin also requires haulers to obtain an individual permit for each load
carried along a surveyed route. Contrast that requirement with Iowa's
practice of issuing a permit that covers all trips on that route for six
(could be 12) months. Iowa's DOT does not place limits on the time of day
when oversize wind equipment can be legally transported.

Between the extra costs incurred by heavy haulers and the lost port traffic,
Wisconsin's transportation policies have imposed a heavy economic cost on
in-state wind development in Wisconsin. The economic damage could spread to
other states if turbine manufacturers continue to avoid Wisconsin ports in
favor of less convenient locations that require more truck or rail travel
after the equipment is unloaded.

************************************

Project Outlook for 2008 and 2009: Babcock and Brown, which bought two
permitted projects in Wisconsin, will begin constructing the 36-turbine
Butler Ridge project this month. RES Americas is the general contractor. The
project, located in southeast Dodge County, should be on-line by the end of
December. I have no information about the transportation arrangements for
that installation, but I can't help but observe that the project site is
less than 60 miles from the Port of Milwaukee.

Babcock and Brown also intends to build its second permitted Wisconsin
project in 2009. The installation would go up in Manitowoc County not far
from Point Beach. B&B's permit lasts through the end of next year. If it
were to expire before the wind project is completed, B&B would have to
obtain an extension or seek a brand new permit under the county's revised
wind ordinance, which, as you know, was essentially written by the WINDCOWs.


***********************************

Wind Powering America Summit: This was a much more interactive and engaging
meeting than last year's gathering. I took part in a role-playing exercise
in which the most common knocks against windpower were voiced by one group
of people (myself included) and then rebutted by another group. As my
group's designated NIMBY, I channeled my inner Dave Korinek and spewed forth
one Internet myth after another about safety (exploding turbines and
collapsing towers), health impacts (stray voltage, "wind turbine syndrome"),
and quality of life complaints (shadow flicker, aesthetics). Judging from
their tinny and wonkish responses, the pro-wind people would benefit greatly
from increased exposure to real-life NIMBY's and attending Mick Sagrillo's
"How to Deal with Wind Opposition" workshop.

It's worth mentioning that the Ohio Legislature recently took steps to
reduce the likelihood of stalled wind projects due to permitting hassles.
The Legislature voted to lower the threshold for state review of wind
projects from 50 MW to 5 MW. If approved, Ohio's threshold would be even
lower than the one in Minnesota (25 MW). That change was incorporated in a
budget repair bill that is now sitting on the Governor's desk. The Governor
supports the provision, I'm told.

The most memorable line of the meeting came out of Randy Udall's talk. After
his meditation on the energy resource constraints that are converging
directly in front of us, he referenced the AWEA/DOE 20% by 2030 report by
saying: "we should be planting wind turbines like trees." Of all the fossil
fuel supply problems that are hard-wired into our future, the biggest shapes
up to be maintaining natural gas supply given current depletion rates. In
Randy's view (and mine), substituting wind for fossil generation is even
more valuable as an energy security strategy than as a carbon reduction
measure.






Michael Vickerman
RENEW Wisconsin
Wisconsin Wind Working Group



We MUST act now to move Windpower forward!

Wayne Clingman
Green Racine

Wind Power as econmoic tool

Check this out, if you want to see what a HUGE impact Wind Power can have for an area.
Much more then a renewable energy source.

http://www.nrel.gov/analysis/jedi/