Library filed under Safety from Michigan
The increasing number of wind turbines threatens the ability for a McKinley Township landowner to safely operate a private airstrip, an Aircraft Owners and Pilots Association official said in a letter addressed to the county.
Buda said lightning has struck 11 to 12 turbine blades owned by DTE in the Thumb area, while another five have been jolted at the utility’s Echo Wind Park, grounded mostly in Oliver and Chandler townships. Add that to three more strikes that Buda said occurred this week.
“We have almost 17 blades that have been struck by lightning since we started,” said Dennis Buda, operations manager at DTE.
DTE Energy representatives said that 39 out of the 70 wind turbines currently shut down at the Echo Wind Park are ready to reboot and produce energy in Huron County. The wind farm was shut down in November because of a broken wind turbine blade in Chandler Township.
The replacement of the blades comes after a blade broke into three pieces in November in Chandler Township. “This is an issue that is greater and bigger than just what is happening here in Huron County,” Chriss said. All of the blades that need repair are located within the Echo Wind Park according to DTE.
“Out of caution, all turbine commissioning and turbine operations at the wind farm have been suspended,” Invenergy says. “We are working with GE, the turbine manufacturer, to determine the cause of this incident. Following a GE blade break on Nov. 7, utility DTE Energy has also ceased work on its 112 MW Echo Wind Park in Michigan. Scott Simons, a DTE Energy spokesperson, recently told NAW that GE was performing a reliability test on a turbine when the blade fell.
The blade that broke was going through a testing period but hadn’t been fully commissioned, according to DTE. CO-84 was turning when it broke into the three pieces. Two parts of the blade fell right underneath the turbine, while a third piece traveled 80 feet and landed on the access road to the turbine. “As a result of the failure we have shut down Echo,” Chriss said at the meeting.
DTE has halted construction of the remaining 10 turbines and shut down the entire wind park. “We have ceased all work and operation on the project until we’re satisfied with what the root cause is and that it doesn’t pose a danger of any continued blade failure. We’re working with GE to determine the root cause. It’s still under investigation.”
It was the third turbine to break in Huron County in the last 10 months and the second turbine owned by DTE to break down in that time. In March, a turbine blade in Sigel Township broke ...In addition, a turbine was struck by lightning near Minden City at the Michigan Wind Project 2 in September. The turbine, owned by Exelon Energy also lost a blade and was set to be back online this week.
“The cause for the blade breaking was a carbon failure at the 19-meter mark that was not formed properly,” Buda said. “Failure in the heating oven at the plant caused the blade to break later on.” ...properly made wind turbines can handle wind speeds up to 125 mph.
Unsure of what to do with its broken turbine, Union Township officials have tabled making a decision until the township consults with Central Michigan University. The north Skystream, a $16,634 grant-funded wind turbine installed for research purposes, no longer works, and the city is not sure why.
The wind turbines that were installed on the Genoa Township hall property will be coming down for safety's sake.
The wind turbines installed in Livingston County's Genoa Township 3 years ago are scheduled to be torn down within the coming weeks. The Genoa Township Board says the turbines are hazardous and have sent aluminum parts flying into surrounding areas on windy days.
It took four months after the initial breakdown to find and obtain a part from Europe at a cost of almost $38,000. Workers installed the new part on Jan. 4, but it failed two days later. The supplier eventually replaced it after another lengthy search. The part was installed April 16. It lasted three days.
Scott L. Simons, DTE Energy spokesman, previously told the Tribune that the utility received an alarm at 1 a.m., and later found that one of the blades at the Sigel site appeared to be damaged. Part of a blade had fallen and was on the ground. ...Last year, two GE-manufactured turbines experienced broken blades in East Central Illinois.
Officials said Friday that there isn't any new information indicating why a wind turbine blade broke off early Monday morning during a low-wind period at DTE Energy's Thumb Wind Park. ...Last year, two GE-manufactured turbines experienced broken blades in East Central Illinois.
DTE Energy has no idea why a portion of a wind turbine blade broke off early Monday morning during a low-wind period at one of the utility's sites in the Thumb Wind Park. "This matter certainly is under investigation," said Scott L. Simons, DTE Energy spokesman.
One of DTE Energy's wind turbines in Sigel Township is motionless after one of the blades on the structure failed during low wind conditions. Pieces of the blade were lying on the ground near the tower. No details as to the cause of the break were available.
"We're in the process of developing an operational guideline that we're going to make universal across the county so we're all operating on the same page so if we have to go to a mutual aid call with another fire department, we're all operating the same way." He says there are 15 volunteer fire departments covering all of Huron County.
The Denmark Township board voted in December to renew its wind moratorium for six months through July 31, 2013. Denmark Township clerk Chuck Heinlein said the township planning commission faces a complex process of determining areas suitable for placing turbines. Heinlein said certain complications for wind development come from the amount of air travel in Denmark Towship.