Library filed under Structural Failure from California
The Kumeyaay Wind farm that supplies electricity to San Diego has been idled indefinitely after a fire heavily damaged one its 25 turbines, officials at the Campo Indian Reservation said Tuesday.
Yesterday’s (Dec 16) explosion and brush fire sparked by a Gamesa wind turbine owned by Infigen at the Kumeyaay Wind facility in Campo, California has ignited new questions about the safety of wind turbines in this fire-prone region, where several of the worst wildfires in California history have previously scorched hundreds of thousands of acres.
A wind turbine on a ridge overlooking the Golden Acorn Casino exploded today, sparking several spot fires “If the wind had been coming from the northwest or west then my home, one of the closest homes to the turbines, would have definitely been in danger because we have brush on this side of the turbines and we would have had a major fire.”
The black smoke westbound Interstate-10 motorists are seeing as they approach Cabazon is what appears to be an electrical fire in a wind turbine engine. The fire is isolated to the gear box. The turbine is on the south side of the freeway. One highway patrol car stood by until crews arrive.
The company's root cause analysis found that the separation happened where the fiberglass laminate of the blade meets a pre-cast blade "root," adjacent to the turbines' revolving hub, a spokeswoman for Siemens said. Seven blades are being replaced at the Ocotillo plant as a result of the inquiry
The mystery behind a fallen turbine blade at the Ocotillo Wind power plant east of San Diego has led the manufacturer to curtail operations at select wind farms around the world. ...The fallen blade ignited new safety concerns among critics of the plant, who posted photos and videos to the internet of the crumpled white tube.
No injuries were reported, according to the El Centro newspaper. But worldwide use of that model of turbine has been suspended while the mishap is investigated by its manufacturer, Siemens. ...In April, a blade broke from a similar Siemens turbine at an Iowa wind energy facility, the Imperial Valley Press reported.
A massive blade from one of the 112 wind turbines recently installed was found near a tower base Thursday, after plummeting onto the ground overnight, triggering safety concerns among officials and some residents. ...the project is now shut down.
NAW has learned that a blade belonging to a Siemens SWT-2.3-108 wind turbine came crashing to the ground at the 265 MW Ocotillo Wind Farm in the early morning hours of May 16. No one was injured. A spokesperson from Pattern Energy, which owns and operates Ocotillo, corroborated the incident.
Siemens does not yet know the root cause of this incident and is working to determine if and how this is related to a recent similar incident in Iowa. Today, Siemens is taking the step of curtailing all turbines with the B53 blade type globally. These turbines will remain curtailed until it can be determined they are not at risk of a similar malfunction. The Iowa incident took place in April at MidAmerican Holdings' 200-megawatt Eclipse wind farm.
News report of the 173-foot long blade that crashed to the ground and shattered into pieces at the Ocotillo wind facility raises concerns about wind turbines built close to people and sensitive resources. Duration: 3 minutes 29 seconds
A Siemens spokeswoman explained that "when a turbine is curtailed, it means the load on the blade is significantly reduced compared to normal operation." The company said there were about 700 such turbines deployed around the world, with most - around 600 - in the United States, and all those turbines were being examined.
This wholly avoidable public health and safety hazard occurred just one day after San Diego County Board of Supervisors approved the revised Wind Energy Ordinance & Boulevard Community Plan to remove community protections to allow 500 foot tall industrial wind turbines on private land in previously protected areas near homes, recreation areas, and sensitive wildlife.
The 315-megawatt Ocotillo Express Wind project in Imperial County is shut down today after a 10-ton blade came loose from one of the project's 112 wind turbines, landing about 100 yards away on a public road.
At least three wind turbines have been lost to a wildfire that has been burning since late last week in the Jawbone Canyon Recreation Area near Tehachapi, and additional turbines might be threatened. The turbines belonged to NextEra Energy Resources.
Asked directly whether the generator that caused the fire was an actual wind turbine, Captain Ewing confirmed, "Yes ma'am." He also confirmed that ground had been cleared around the base of each turbine, the blaze swiftly spread to become a wildland fire despite those precautions. Captain Ewing did not know the precise cause of the turbine malfunction.
A large wind turbine burst into flame late Friday night in the mountains above Mojave, causing a small grassfire. The fire took place near the intersection of Oak Creek and Tehachapi Willow Springs roads.
By 9:33 p.m., a caller advised the California Highway Patrol authorities that “the ridge is now on fire” near Haugen-Lehmann Way and eastbound Interstate 10. ...Eight homes were evacuated, Gaines said.
The CHP closes roads near runaway wind turbines for the safety of motorists. "The runaway wind turbine, when it deteriorates or explodes, can send scrap metal and steel up to a mile away," said CHP Officer Ed Smith.
William St. Clair, a General Engineering contractor in California, identified a structural failure on a set of welds in ReDriven's 18 meter tower. The tear was expanding, and the tower section above the tear was off center and shifted.