Articles filed under Structural Failure
HIGASHIDORI, Aomori Prefecture–The industry ministry Wednesday said it is trying to determine what caused a 68-meter-high wind turbine to collapse earlier this week since strong winds apparently were not blowing at the time. The incident at the Iwaya Wind Farm in the Iwaya district of Higashidori in this northern prefecture is thought to have occurred late Monday, according to officials of Eurus Energy Holdings Corp., which manages the wind farm. While no one was injured, the incident resulted in temporary power outages to homes in the area because power lines were severed.
The talk in the local community is that five of the 12 turbines at Toora are now shut down because of equipment failure, the warrantee period has expired and they can't get parts. This wind farm is not particularly old and it's now limping along with a 42% reduction in power output. It's probably a good time to get this junk off the Toora hills....... This mucking around with turbines all adds to the cost of something that is nothing more than a hoax, which would all be pretty funny if it wasn't subsidised by the public purse.
The fire was caused by burning debris from a wind turbine that caught fire due to a malfunction.
To continue its rapid growth, wind energy must overcome some major hurdles in the next few years. Market development in the United States is strongly dependent on the federal PTCs, which for now must be periodically renewed by Congress.
PRINCETON — On February 21, when Princeton Light Department Manager Jonathan Fitch drove over Westminster Road to check on the windmills, he got an unpleasant surprise.
Great Yarmouth, England. Vestas faces another offshore calamity with faulty turbines in the British Scroby Sands farm. Defects have been found in a bearing of the gearboxes of 18 of the 30 V80 machines, the president of Vestas Northern Europe, Tom Pedersen, has confirmed. This is only a year and a half after Vestas was in the headlines with serious flaws in its machines in the Horns Rev farm off the western coast of Denmark. The transformers and generators of all 80 V80 turbines had to be dismantled and repaired on land - at a cost of millions for the world wind industry leader.Pedersen says as a precaution the relevant bearings will be exchanged in all 30 of the Scroby Sands turbines installed in 2003. No such problems were to be expected with North Hoyle, the UK's first major offshore wind farm, inaugurated in November 2003, because the V80 machines installed there have different types of gears, says Pedersen. But damage to bearings similar to that now found at Scroby Sands had occurred in some turbines in the USA and the cause is still being investigated, he added. In addition to the bearings, five generators have to be replaced in Scroby Sands. Pedersen said they'd be taken apart to find the cause. Vestas is lucky inasmuch as the repairs can be done at sea without the nacelles having to be taken down. Weather permitting, the repair campaign is to be completed shortly."This is no new Horns Rev," assures Vestas man Pedersen. But it's still a bad time for his company to be in the news again with damaged components. As recently as the end of November, Vestas shocked its investors with yet another profit warning, explained as partially due to quality flaws in the products of suppliers."Our philosophy 'failure is not an option' must also be implemented by our suppliers,"' Vestas CEO, Ditlev Engel, emphasised in an interview with us a few weeks ago (new energy 6/2005). Now the resolute manager can show sooner than he probably bargained for how he intends to assert that principle.
IDAHO FALLS, Idaho Blades on two turbines at the Wolverine Creek wind farm have snapped, forcing crews to shut them down for repairs.
"Most windfarms are near roads, railways, or walking paths, and the dangers are obvious."
Rose Bacon, member of the Governor's Energy Task Force and a rancher who owns property in the Flint Hills, spoke about the vulnerability of communities facing proposals from international companies that want to build commercial wind farms in rural areas. She pointed to the lack of “teeth” in regulations, and the attractive tax write-offs granted to wind energy companies, and the inexperience of local officials in dealing with such monstrous deals, depicting a state-wide scenario akin to the “wildcatter days in the oil business.”