Articles filed under Icing
Samuel Bonacci, a spokesman for the college, said the ice flew off the turbine’s blades Tuesday morning, landing on the building and a parking lot used by faculty and staff. It broke a hole in the skylight.
“The PSB has sent us a clear message that we may as well stop filing complaints when GMCW is in violation,” said Melodie McLane, who issued the complaint.
When on New Year's Eve he walked along the Mähneweg near Bocholt, a chunk of ice crashed to the ground just a few meters from where he stood. "I've got a huge horror, of course," he says. The approximately 60-centimeter (nearly 2-foot) ice piece had flown down from a 98-meter high wind turbine.
At a special hearing Thursday, representatives from Georgia Mountain Wind appeared before the Vermont Public Service Board to appeal a ruling that wind turbines have violated noise and weather-related specifications listed in the project’s certificate of public good.
Researchers who worked near the 400-foot high wind turbines on peaks above the proposed Balsams ski area say there is reason to be worried about people getting too close: They saw chunks of ice being thrown and found ice craters and broken saplings 930 feet from a turbine.
A hearing officer for the Public Service Board has recommended that Green Mountain Community Wind — the company led by Vermont renewable-energy pioneer David Blittersdorf — be found in violation of its permit for operating wind turbines on Georgia Mountain with iced blades. ...The iced blades produced unusually loud noise, said Melodie McLane.
Cold climate and de-icing technologies are improving the business case for wind power in Canada, but icing prediction and assessment remain problematic for the industry, experts told Wind Energy Update.
Dixville Capital’s attorney is working out an safety plan to address the board’s concern about ice throw and other potential hazards around the Granite Reliable wind towers (owned by Brookfield Power) in the expanded high-elevation ski area, based on an engineer’s report, board attorney Bernie Waugh reported.
In March, the Public Service Board received reports that turbines on Georgia Mountain were operating with dangerous amounts of ice on the blades. The PSB announced this week that it will investigate the allegations.
One of the wind turbines at Ferndale has been tethered after it was found to be leaning
Offshore wind market service provider A2SEA has confirmed that its jack-up barge Sea Worker ran aground early Wednesday morning off the coast of Nymindegab, south of Hvide Sande in Denmark.
Despite growing awareness of the potential for wind power projects in cold climates, turbine manufacturers have yet to deal convincingly with the threat of ice throws.
Using an industry rule of thumb, the setback for turbines likes those in the North Country would be about 800 feet, says Rene Cattin, a Swiss researcher who studies wind turbines in cold weather. But, Cattin said, his research shows that ice isn’t thrown more than about 500 feet. However, there are safety issues beyond ice throw, issues that could occur year-round.
The resort's redevelopment remains contingent on an expansion of its ski area, which, if enlarged, would be near at least half a dozen Granite Reliable Power (GRP) wind farm turbines in Dixville, on land owned by Bayroot LLC.
Workers are currently trying to find a way to melt some of the ice. They will use helicopters to spray the blades with hot water in an attempt to break up some of the ice, she said. Last year, all 33 of the turbines had to be shut-down for over a month.
Northern New Brunswick's cold, icy weather is causing wind turbines to freeze and stop producing power at the Caribou Wind Park near Bathurst. The new wind farm's 33 turbines have been generating power since November, but they have been forced to shut down for the past two days due to ice forming on some of the blades.
A wind developer that became a "lightning rod" for the industry when one of its turbines started shedding ice in December, has revealed its latest strategy for dealing with ice build-up, writes Rachel Johnson. ..."We knew icing would occur but believed our turbines would stop in the event of an ice build up," he said. The investigation revealed that the most widely available guidelines on icing, including those from the BWEA, had said that wind turbines are designed to shut down in the event of an ice build up.
Even when it comes to the giant blades of the turbines in Amaranth and Melancthon, there might be truth in the old expression that "it's an ill wind that blows no good." This might have been the case when the Melancthon I wind project had to be shut down for nine days in December 2006 because of an ice storm and the resultant imbalance of the blades.
A sensor which should switch off a wind turbine in icy conditions has failed - for the second time. As reported in The Evening Telegraph last week, a faulty sensor on the turbine in King's Dyke, Whittlesey, was blamed for huge shards of ice flying off its blades and crashing into homes and gardens in November. ..."The turbine was shut down immediately after we were alerted, and will remain in this state until further notice."
A Meridian Energy witness was scrutinised for not considering Central Otago's harsh winter, which could shut down wind turbines in times of high demand. The Environment Court hearing into the $2 billion Project Hayes windfarm continued yesterday with wind energy consultant Graham White appearing for Meridian. He said in freezing humid condition wind turbines could ice up and no longer operate.