Library filed under Structural Failure from Canada
TerraForm Power said 22 of its 52 turbines are back online
Vern Martin, a mechanical engineer and vice-president of Flowcare Engineering consulting company in Cambridge, Ont., believes a blade may have malfunctioned and struck the column, causing it to buckle. "That ... has actually been recorded as occurring before in some of these other failures," explained Martin.
A company in Chatham-Kent, Ont. has shut down all 51 of its wind turbines as a precaution until an investigation reveals what caused one of the turbines to collapse last Friday. The turbine in Raleigh Township, near the corner of Drake Road and the 16th Line, collapsed on itself.
The turbine that collapsed was a GE 1.5MW xle, placed in service in 2011 by US-based Invenergy as part of the 52-turbine (78 MW) Raleigh wind facility in Chatham-Kent in southwest Ontario. The project was soled to Terraform in 2015. No information has been released as to the cause of the failure.
The toppled turbine was discovered by a hunter scouting for coyotes early this morning in Harwich Township, according to The Blenheim News Tribune. The huge turbine blades and motor assembly crashed to the ground and the support structure appear to be folded in half.
No injuries were reported after a wind turbine in South Kent collapsed early this morning, causing a huge outcry of concern from the public on social media.
WindShare's own blog about the Exhibition Place turbine shows it has been plagued with problems over the past five years. The issues began after the turbine's main bearing was replaced in 2011. ...A series of what the operators called "cascading faults" took the turbine off line from the summer of 2012 until March 2013.
Enercon's email did not elaborate on the hub's damage. However, documents from the Labour Department regarding a subsequent stop-work order said a hub assembly was damaged in a "bearing failure" in March 2016. On Aug. 17, workers tested the turbine's lightning-protection system, which required positioning the blades so they pitched into the wind.
Lotta Schmidt said “a combination of factors” led to the collapse, but despite being asked several times to specify what those factors were she declined to elaborate. “The fact that it’s not a design or a technical issue allows us to be confident that it’s not something that can happen at other sites.
"If it's too windy, then maybe it's not the right place for it [the turbine]," said Doreen Aucoin. "Because it is close to houses and I imagine the people up the hill ... they must have been scared because it was right near to their house."
The province’s energy minister says setback regulations are in place to protect the public and neighbouring landowners should wind turbines fall, as has happened twice in Cape Breton in the past five months.
It’s shattered it to pieces, blown apart by a south easterly wind, it was blown to pieces — incredible power. -- Pierre Chiasson
People in the Grand Étang area of Nova Scotia's Inverness County tweeted photos and video of a wind turbine, whose main trunk was snapped clean in two, with the leftover blade apparatus lying at its base.
Wednesday afternoon, flat-bed trucks were seen entering the wind farm to retrieve shipping containers used to transport equipment and tools to the site. There is no timeline for when the investigation will be complete.
Two investigations has been launched into the collapse of an 80-metre wind turbine in Cape Breton, believed to be the first catastrophic failure of its kind in Canada.
One week after an 80-metre wind turbine collapsed in Cape Breton, there is still no clear indication of what caused what's believed to be the first catastrophic failure of its kind in Canada.
Enercon said the incident occurred on 17 August during a "scheduled component exchange".
One of the wind turbines at Ferndale has been tethered after it was found to be leaning
When D’Eon, who lives near the Pubnico Point Wind Farm, came outside to investigate what he heard, he saw that one of the blades on a turbine was “in distress.”