Articles filed under Structural Failure
JOHNSTON COUNTY, OKLAHOMA (KXII) - A wind farm turbine in Johnson County caught fire, after it was struck by lighting during Friday night’s storms.
Ada-Liberty Township Fire Department was called to a wind turbine fire reported at 4:31 a.m., Friday morning (March 26), according to the Ada police report.
Leading edge erosion on wind turbine blades is a major cause of reduced power output and efficiency as wind farms age. But, this growing problem is not well understood, so in today’s article we’ll tackle some of the root causes of leading edge erosion, what’s being done about it, and what we should look to in the future to solve this industry-wide problem.
At the end of November, a 230 meter high wind turbine near the town of Jörn in Skellefteå municipality collapsed. The whole tower gave way and crashed to the ground.
The turbine is part of the Harvest II Wind Project owned by Exelon Generation, the second part of a wind farm whose first phase began operations in 2008. Harvest II's second phase started operating in 2012. Turbine #7 is located south of Crown Road and east of Gagetown Road.
The cause of the accident is unknown and the company is assembling a team that will investigate at the site, spokesman Anders Riis said on Monday by phone. A lot of snow is expected this week, which may delay the work, he said. No one was injured in the incident. Sweden is turning to the most mature renewable energy source to replace old nuclear reactors.
It was at 9 pm on Saturday evening that the wind turbine gave way and fell to the ground. Pictures taken by Norran show how the tower folded a few meters above the ground and then the turbine housing, tower and blades crashed down. ...It is now Vestas that will carry out an investigation into the accident.
A part of the wind turbine prototype “Vertical Sky A 32” with vertical rotors crashed on the wind test field during gusts. One of the three rotor arms and the 54-meter long rotor blade were in the field. Nobody was injured in the accident.
Last month, Dundonnell was also hit by a fallen blade at one of its Vestas turbines, which brought production across the wind farm to a halt for a few days as the cause was investigated. Campbell says it is clear that the blade fell because bolts holding it to the hub became loose, but the question of why those bolts became loose is still under investigation.
A wind turbine manufacturer is investigating its turbines after a blade broke off in southeast Nebraska. A spokesperson for EDF Renewables says a turbine fault error occurred at turbine 89 of the Milligan 1 Wind Farm on Thursday morning.
MidAmerican Energy, has idled more than 40 wind turbines at Iowa wind farms after a 50 metre-long turbine blade broke off and fell into a field last week. ...“The turbine that had the blade failure last week is the same type of turbine that had a blade failure last month in Adair Countym” he said. “They also had the same type of lightning system in them that channels lightning from a strike near a wind turbine blade down into the ground safely.
The fire specialist says that because of a lack of reporting and transparency around wind farm blazes, it is difficult to know how far off current estimates (ranging from 1 in 2,000 turbines to 1 in 15,000 ) are from the true number of fires each year, while many figures are more than five years out of date.
MidAmerican Energy says it has idled nearly four-dozen electricity-generating wind turbines while workers check them for safety after blades broke off of two similar turbines over the past two months. Those blade failures follow a break earlier this year and one in 2019.
For a second time in two months, a wind turbine blade broke off in central Iowa. The latest incident happened Thursday near Paton, in Greene County.
Tilt Renewables’ massive Dundonnell wind farm in Victoria is gradually powering back up one week after the project was shut down after a 73 metre, 70 tonne blade fell off one of the project’s 80 newly installed Vestas turbines.
The blade fell around 8.30pm and the company has since removed all turbines from operation while an investigation of the damage occurs. "A root cause analysis will be completed in conjunction with the wind turbine manufacturer, Vestas, which will inform the assurance process on the other turbines prior to these being returned to service," Mr Campbell said.
Tim Jolly is a fifth-generation McLean County farmer and is looking forward to a safe harvest this fall. However, while farming in the footprint of a wind farm near Lexington, Jolly has major concerns over the potential of falling debris from nearby wind farm turbines from the Bright Stalk Wind Farm.
The nacelle at the top of the structure was alight and falling debris caused a small fire on the ground. Firefighters worked with the site owner and Electricity North West to isolate the power and put a cordon in place to secure the area and allow the fire to burn out safely.
Adair County farmer Curt Beane said the blade crushed the corn below, but nobody was injured. “I work in the field that it came down, and I do have true safety concern,” Beane said. Beane said he does not own the land that the blade fell onto, but he does farm it.
On Thursday, a wing was torn off from one of the turbines in the wind farm at Tönsen. This is the second time this has happened in a short time. Now the wind power company is urging people to keep a safety distance of 300 meters.