Library filed under Safety from Rhode Island
Workers at the Merkur wind farm in the German North Sea found signs of stress fatigue on the support structures of the “helihoist” platforms on some of the project’s GE Haliade turbines. Power generation at the 396-megawatt array was temporarily halted to come up with a solution to the problem, but the wind farm has since come back online. In June, Ørsted said it had put the five-year-old Block Island Wind Farm “on pause as a precautionary safety measure” to see if similar problems had arisen with the platforms at the top of the turbines that equipment and workers can be lowered onto from helicopters.
Ørsted, the Danish energy company that purchased the wind farm from the original developers, Deepwater Wind, said that four of the five turbines were taken offline earlier this summer as a precaution after GE, the manufacturer of the 6-megawatt turbines, identified the stress lines in the turbines.
Ørsted, the company that owns the wind farm, tells 12 News they’re conducting routine maintenance on the turbines. Right now, a spokesperson said they’re in the process of repairing stress lines inside four of the turbines.
Glander went on to write that the Coast Guard may make the same recommendation for Vineyard Wind that it did for the Block Island Wind Farm, a research analysis indicating whether the turbines “produce radar reflections, blind spots, shadow areas, or other effects that could adversely impact safety of navigation.” If there are negative impacts to marine radar, Glander wrote, Vineyard Wind should recommend how to remedy them. If such remedies are necessary, he wrote they should be “funded by Vineyard Wind.”
A 100-foot tower supporting a wind turbine at Salty Brine State Beach in Narragansett collapsed during a nor'easter, Tuesday.
This 100-foot turbine sited in Narragansett collapsed in winds over 50 miles per hour.
One of the five General Electric 6MW Haliade turbines installed at Deepwater Wind’s Block Island offshore project is reportedly down for repairs, potentially delaying the wind farm’s full commissioning.
The two barges became separated and drifted apart from each other in Block Island Sound before personnel secured the barge. One barge containing two of the 56-foot tall yellow decks was seen battling high seas off the island’s southwesterly side, while the other barge, carting three deck platforms, was situated off the coastline near the North Lighthouse.
Fugate says contractors with experience working in offshore energy projects in the Gulf of Mexico, have found the open waters of the Atlantic Ocean to be a more challenging work environment.
First, it was the weather. Rough seas forced the Providence company to push back until last Sunday the installation of the first steel foundation for the five-turbine wind farm off Block Island. Now, Deepwater is dealing with a construction mishap. Earlier this week, one of the barges being used in the project hit the latticework “jacket” foundation that had been placed in the water and dented one of its four hollow, tubular legs.
The 1.5-megawatt turbine was commissioned in March 2009 but was shut down June 18, 2012, after the gearbox showed significant wear. The faulty gearbox was no longer covered by warranty, and the manufacturer of the turbine, AAER Wind Energy of Quebec, is no longer in business. Three of five turbines of the same make and model erected in California and Templeton, Mass., also suffered gearbox failure.
"This is really important for people who are flying in bad weather to be able to land," said pilot Henry duPont, an island resident. Without the Sandy Point VOR, pilots without more advanced GPS technology would not be able to fly to Block Island legally, duPont said.
Gearbox reliability continues to dog the wind industry and as turbines become larger the push to improve performance becomes paramount.PORTSMOUTH - By a near-unanimous vote, the Town Council decided Oct. 23 to seek a public-private agreement to fix the town's broken wind turbine.
The company that installed the turbine, AAER of Canada, went bankrupt a year after installation, and left Portsmouth with no warranty. Even worse, the chief executive of the company hired to oversee maintenance of the turbine stated that gearbox failures occur in "10 percent of turbines nationwide".
For three years, the $3-million windmill fulfilled that promise, making the town about $400,000 after maintenance and debt payments. ...the turbine's gearbox needs to be replaced for at least $460,000 -- completely erasing those three years of income.
At Monday night's meeting, the town council was informed that the gearbox in the 1.5 megawatt turbine has failed. Though the reason for the failure is unknown, oil samples show metal shavings inside the gearbox filter. The turbine has been shut down since June 18. Replacing the gearbox could cost about $400,000.
Town officials are working to undercover what broke last week on the Portsmouth wind turbine generator. The turbine, located at Portsmouth High School, stopped spinning last week after an error message appeared.
"Our first thought was that no sane spray pilot would get near one, so we immediately called Farmer's Spraying Service from the meeting and the owner told us not only would he not treat a field with one of the towers, but he also would not care to do the application, if the tower was in an adjacent field.
The unexpected ruling, which cannot be appealed, was announced by Town Administrator Bruce Keiser at an unscheduled Town Council meeting on Sept. 14. The councilors had set aside the evening for a Ft. Getty workshop, which was delayed until they finished their discussions on a response to the FAA ruling.
Forty pages of health and safety information surrounding the proposed wind turbine project in town may never have been created had it not been for some anxious residents. Ron Pitt, chairman for the health and safety subcommittee that researched and wrote the report, said interested and concerned residents, including members of the group Citizens Wind Watch, should be credited for pushing forward the process of learning more about wind turbines and the issues that surround them. ...Mr. Russo said the recent health and safety report spelled a certain end to the likelihood the turbine would be constructed at the high school.