Articles filed under Structural Failure from USA

Wind crashes Waverly turbine

A 50-ton structure fell 246 feet to the frozen ground on Saturday when the blades of a turbine under construction east of Waverly caught wind and started rotating at a speed reaching 60 rpm. The hub housing the generating components of the Cannon II turbine and the structure's three 177-foot blades collapsed after spinning for hours at the mercy of the wind, says Waverly Light and Power General Manager Diane Johnson. A gust caught the blades prematurely on Friday.
25 Feb 2009

An unexpected problem has occurred with construction of second wind turbine

The construction company, ICS of North Dakota, lifted the wind turbine rotor assembly, to which the blades attach, 246 feet high into place late yesterday afternoon. After it was lifted it was discovered the blades were not ‘feathered' or turned properly so they could not catch the wind. In the position the blades are in, the wind caught the blades causing them to spin. When this was discovered, the Bremer county sheriff's department was notified and all personnel were evacuated, including two homeowners who were outside of the recommended danger zone.
21 Feb 2009

Part of wind turbine breaks and lands in open field

Part of a wind turbine under construction broke apart Saturday morning. The problem started Friday when construction crews were installing a second wind turbine for Waverly Light and Power. During the process, a construction error caused the rotor and blades to start moving in the wind prematurely - spinning uncontrollably and unable to stop until it broke.
21 Feb 2009

3 turbines crash after blades from one break

Three wind turbines at Perkins High School crashed Saturday when the blades broke off one of them. No one was hurt when parts of the fiberglass blades came off the turbine as it spun, winging the blades up to 40 yards away from the silver monopole tower, near the high school at 3714 Campbell St. The remaining two turbines will not be used until they are inspected and officials figure out what caused the blades to break.
10 Feb 2009

100 mph winds damage Nederland turbine

U.S. Forest Service officials had a tour scheduled Wednesday afternoon to show off to journalists a pair of recently installed wind turbines. But they had to cancel the tour when 100 mph winds damaged one of the turbines Tuesday night. "We were kind of tickled" by the irony, acknowledged Maribeth Pecotte, a spokeswoman in the Forest Service's Boulder Ranger District office. ...The turbine project is costing the Forest Service $171,568 over a 15-year financing contract, Pecotte said.
29 Jan 2009

When lightning strikes wind turbines

This has been known to fry wind turbines. With snow, ice and frigid weather, winter creates complications for renewable energy, as I wrote last week. But for Ralph Brokaw, a Wyoming rancher with both cows and wind turbines on his land, the worst hazard is not the ice that his blades can throw off in the winter. Rather, it is lightning strikes on the towers.
29 Dec 2008

When lightning strikes wind turbines

This has been known to fry wind turbines. With snow, ice and frigid weather, winter creates complications for renewable energy, as I wrote last week. But for Ralph Brokaw, a Wyoming rancher with both cows and wind turbines on his land, the worst hazard is not the ice that his blades can throw off in the winter. Rather, it is lightning strikes on the towers.
29 Dec 2008

Wind, but no power; Early February is new deadline for turbine project

The 10 wind turbines at the Taconite Ridge wind farm will probably still be motionless until early February, a company spokesperson said Thursday. Nine of the ten wind turbines now are having repairs done to blades, instead of just five, that was reported earlier. The completion date for repairs has been pushed back from mid-January, said Amy Rutledge, Minnesota Power communications manager.
20 Dec 2008

Air Repair: Cracked blade replaced at Corn Plus

When it came time to start repairing a wind turbine at the ethanol plant on Oct. 15, the project had to be put on hold. ..."The blade has been cracked all summer. It's been frustrating," says Dan Moore, director of project development for Renewable Energy Solutions. When the broken blade was discovered, the turbine furthest from the ethanol plant had to be shut down. All three blades needed to be replaced, says Moore, because we couldn't find one to match the other two.
27 Oct 2008

Holy Breaking Wind Turbines!

When we reported on the videotaped Vestas turbine explosion, the wind energy watchdog group Industrial Wind Action Group had a list of 36 turbine failures in the U.S. Today that list has grown to 51 recorded turbine failures. Across the pond, the British group Caithness Wind Farms, which tracks such global turbine accidents, says the number has jumped to 65 so far this year, up from 11 in 2001.
25 Oct 2008

Blade breaks off wind tower near Wyanet

A wind turbine blade came crashing to the ground Wednesday, halting energy production at a small-scale wind farm southwest of Wyanet because of what may be a defective design. In all, four turbines on Richard Shertz's property - all part of the AgriWind facility in central Bureau County - have stopped turning after a blade on top of one of the towers broke off about 9:30 a.m. "It was the loudest noise I've ever heard," he said. "I thought it was thunder."
23 Oct 2008

Searsburg windmill collapses

There are 11 wind turbines at Green Mountain Power's Searsburg wind facility but recently one of them suffered a setback when its nacelle (or wind turbine gearbox) collapsed in high wind conditions. ...On Monday, September 15, a blade on turbine number 10 came in contact with the tower. The chain reaction caused it to buckle and it crashed to the ground, scattering debris several hundred feet from the structure. No individuals were hurt when the nacelle collapsed. However the nacelle leaked 40 gallons of hydraulic oil on the site.
23 Oct 2008

Blowin' (off) in the wind

Shortly after 9 a.m. Wednesday, a rotating blade on a wind turbine at Schertz's farm broke off, plunging to the earth in a cornfield about 150 feet west of the turbine. ...The spokesperson said the investigation into this turbine had just started, but the company was in the middle of a blade retrofit program across the United States to correct an "unfortunate" design issue in the first generation of this blade.
23 Oct 2008

Wind turbine repairs scheduled; Five of 10 machines turned off due to defects

It's not just a lack of wind as the reason why some of those wind turbines in the Taconite Ridge wind farm aren't turning. Half of the 10 machines had to be turned off. After a recent routine maintenance check, it was found that five of them had non-structural defects in some of the blades. The affected turbines were shut down and are awaiting repairs, which are expected to go through the end of the year, Amy Rutledge, Minnesota Power communications manager, said Friday.
18 Oct 2008

https://www.windaction.org/posts?location=USA&p=23&topic=Structural+Failure&type=Article
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