Library filed under Structural Failure
NextEra Energy, owner of the Steele Flats wind farm in southern Nebraska, has suffered at least four wind turbine calamities in recent weeks, including broken blades, a fire and a collapse.
A 160-foot (50-meter) wind turbine blade broke in rural mid-Michigan, leaving it dangling above a field. The turbine is one of 75 GE 1.6-megawatt turbines located in Tuscola, Bay and Saginaw counties, Michigan. The project began commercial operation in 2012
Rapp said when the turbine and tower fell to the ground, operators shut down the 119-turbine Shannon Wind Farm as a precaution. They were eventually able to restart the remaining turbines a couple days after the incident.
Last Friday, a wind turbine failed at midpoint and fell to the ground just approximately 5 miles southeast of Windthorst on Oliver Wells Road just inside the Clay County line.This is the Shannon Wind Farm E-03 to E-04, managed by Alterra Power Corp.
The turbine that collapsed is part of the 204 MW Shannon Wind facility in Windthorst town, Clay County, Texas. The project includes 119 General Electric (GE) wind turbines. Each turbine is 1.7 MW with a rotor diameter of 103 meters The project was placed in service in December 2015 and is jointly owned by Alterra Power (50%) and an affiliate of Starwood Energy Group (50%).
No details have been released yet as to what caused a wind turbine to collapse Monday afternoon east of Hooker, Okla.
The incident involved a 1.7 MW GE turbine at the Shannon (204 MW) wind facility outside of Windthorst TX which was placed in service December 2015.
Lake Land College has removed two wind turbines after they suffered enough damage to render them inoperable. "The situation with the two 100 kW wind turbines is a snapshot of renewable energy in the United States in 2017," said Joseph Tillman, the division chair and Lake Land College's renewable energy instructor and coordinator. Wind is going to be around for a while, but other forms of renewable (energy) are gaining in use.
News reports indicate wind turbines collapse regularly in the U.S. and elsewhere. One county in eastern Michigan had two topple in one week last year. ...Ethan Thorp, 27, of Steele City, went out to see the downed wind turbine near Diller ...he's grateful the tower and turbine came down in the cornfield during the early morning hours. "You’d hate to be out there spraying" in the field if a turbine collapsed.
BEATRICE – One of the wind turbine towers in the Steele Flats Wind Farm near Diller, has collapsed. The tower is a half-mile west of Nebraska Highway 103 and one mile north of Nebraska Highway 8. The tower is part of the $138 million wind farm, developed by Florida-based NextEra Energy Resources, which includes 32 wind turbines in southeast Jefferson County and 12 more in southwest Gage County.
One of the 44 GE 1.7 MW turbines sited at NextEra's Steele Flats wind facility suffered a catastrophic collapse. The 74.8-megawatt wind plant located in Jefferson and Gage Counties, Nebraska was placed in service in October 2013.
This 2.5 MW Clipper model C-96 turbine, part of NextEra's Endeavor I Wind Energy Center, burned for hours before this video was taken. The video shows the turbine's massive blade fall to the ground after first standing on its end before collapsing into a trail of black smoke and flames. The Endeavor I facility is located in Osceola County, Iowa. The turbines stand 420 feet tall including the 153-foot long blades; rotor diameter of 314-feet (96 meters). The 100 MW facility includes 40 turbines and was placed in service in 2008.
Garner said the turbine in question is a 2.5 mega-watt Clipper turbine, located on the organization's Endeavor I Wind Energy Center in Osceola County. There is a second Endeavor energy center also located in the county, both beginning operation in 2008.
Officials with Southern Company, which owns the turbine, said it started around 5:30 p.m. at the company's Salt Fork Wind Facility.
There was another fire at an operating wind plant in Texas. The turbine was part of the 174 MW Salt Fork Wind project, located in Donley and Gray Counties, east of Amarillo. The 87 Vestas V100 (2.0 MW) wind turbines was installed by EDF Renewables and placed into service in December 2016. EDF Renewables sold the facility to the Southern Company. Photos courtesy of Greg Hendricks.
A turbine at Nextera Energy's Breckinridge wind energy facility suffered a catastrophic blade failure which threw the blade at least 300 feet from the base of the tower. The Breckinridge facility which was place online in August 2015, uses 57 GE 1.7 megawatt XLE turbines. The site has a nameplate capacity of 98.1 megawatts.
The Ocheyedan Fire Department was called to the scene ...They stood by after the decision was made to let the fire burn itself out.
The broken blade sits about 100 yards behind the wind turbine, crushing all of the corn that surrounds it. The cornfield belongs to Ken Carpenter, who declined to comment. Cleaning up the blade and wind turbine could take anywhere from a couple of weeks to two months, and will involve bringing a large crane near the field to take the blade off, McIntyre said.
There is security video and it showed the turbine working normally one minute then falling over the next, Newhold said.
Enercon's email did not elaborate on the hub's damage. However, documents from the Labour Department regarding a subsequent stop-work order said a hub assembly was damaged in a "bearing failure" in March 2016. On Aug. 17, workers tested the turbine's lightning-protection system, which required positioning the blades so they pitched into the wind.