Articles filed under Structural Failure

Blade retrofitting, forex losses hit firm

Damaged rotor blades and forex losses caused the world's fifth-largest wind turbine maker Suzlon Energy post a consolidated net loss of Rs 34.90 crore for the quarter ended December 2008 against a Rs 142.8 crore profit in the corresponding previous quarter. ...Cracks were detected in 170 of the 1,250 blades for 400 turbines of the S88 V2 model supplied by Suzlon in 2007 to two of its major clients in the US -- Edison International and John Deere.
30 Jan 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

Work to repair 'UFO' turbine is underway

Work to get the wrecked 'UFO' wind turbine up and running at Conisholme wind farm is underway. Despite the explanation as to why one of the baldes 'fell' and another was left bent still being unknown, workers are at the site and in the next few days, all three 65ft blades and the central hub will be replaced.
16 Jan 2009

Call for Conisholme wind farm to be closed; Ecotricity say there is no danger to the public

A call has been made for the Conisholme wind farm to be closed - before someone is injured. Coun Robert Palmer, Chairman of East Lindsey District Council, says the site should be closed off to the public while an independent health and safety investigation is carried out. On Sunday morning local people woke to find a blade on one of the 89 metre high wind turbines in Fen Lane had broken off.
7 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

Storm damages wind turbine

One of the blades of a Suez Energy North America V-90 wind turbine situated approximately 1,600 feet away, between her house and the Northumberland Strait, was damaged. Pieces were dangling from the blade and other pieces were strewn throughout a field, right up to her back door. ...Sabota reported that blades on two of the three turbines in Suez Renewable Energy North America's Norway wind park sustained some damage.
26 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

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

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

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
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