Broken blade at GE wind turbine at Björkvattnet wind farm in Sweden. Alexander Pohl photo posted at Recharge Per Recharge: The first blade break at the wind farm was probably caused by a manufacturing defect, and the second was damaged during installation. According to regional newspaper Jämtlandstidning, local residents were complaining about not getting sufficient information about the third such incident.
“We don’t know what’s happening because we’re not told anything,” Terese Björk, who witnessed the broken blade on Friday, told the newspaper.
The primary purpose of the independent investigation is to prevent recurrences at this or other projects in the US and worldwide. Available data suggest that blade failures are far too common.
Updatedincident tables for OCS oil and gas operations. The most recent data are for 2023! Providing timely details on incidents is a fundamental responsibility of a safety regulator.
A summary of incidents associated with the OCS wind program. From press reports, we know about the fatality during Empire Wind construction. What other incidents have occurred to date?
Information on the mysterious sinking of the Aban Pearl semi-submersiblein May 2010. An investigation was conducted, but the report was never shared. In the interest of offshore safety, the new regime in Venezuela should release this report.
The attached Memorandum of Understanding between Vineyard Wind (VW) and the Town of Nantucket is long on bureaucratic procedures and short on risk mitigation and penalties.
The agreement details requirements for monthly reports, liaisons, written correspondence, plan reviews, and participation on incident management teams, but excludes any monetary penalties for past or future incidents. (With regard to penalties, should BSEE have assessed civil penalties for the 2024 turbine incident in accordance with 30 CFR § 285.400 (f)? This was a major pollution event.)
This MOU provision gives the impression that the Town is subordinate to VW:
“The Town will provide Vineyard Wind 1 up to 4 business days, if required, to identify and correct errors in the Town’s intended public communications about the Project.”
The responsible party should not be exercising oversight over the communications of an affected local government. Can you imagine Santa Barbara County reaching such an agreement with Sable Offshore?
Finally, the MOU further establishes the Town as a de facto partner in the project. VW, not the Town, is the responsible party and must be held fully accountable for project performance.
The Town of Nantucket’s attorney, Greg Werkheiser of Cultural Heritage Partners, told The Light last month that “it’s taken far too long” to get a final report on the blade failure.
Plymouth MA wind turbine that lost a blade. (Stuart Cahill/Boston Herald)
Friday’s turbine blade failure in Plymouth MA is perhaps getting added attention given its proximity to the 7/13/2024 Vineyard Wind blade failure offshore Nantucket. The Plymouth blade landed in a nearby cranberry bog (video and picture below).
Per the MV Times, the turbines for the Plymouth project were manufactured by Gamesa, which is now part of Siemens Gamesa. Both the South Fork Wind and Revolution Wind projects off the coast of the Martha’s Vineyard are being developed by Ørsted using turbines from Siemens Gamesa. Coastal Virginia Offshore Wind, the largest offshore wind project in the United States, is also being developed with Siemens Gamesa turbines. This is not to imply a higher degree of risk for those turbines. Vineyard Wind, where the only US offshore failure has occurred to date, is using GE Vernova turbines.
Unfortunately, turbine blade failures are much too common. Last October, Lars Herbst reported, based on a Wind Power article, that “with an estimated 700,000 blades in operation globally, there are, on average, 3,800incidents of blade failure each year.” Lars noted that the annual blade failure rate of about 0.5% translates to 1.5% of all operating wind turbines experiencing a blade failure every year, a remarkably high failure frequency.
Scotland Against Spin data indicate that blade failure is the second most common accident type in the wind industry, and the most common cause of accidents at operational wind turbine sites. SAS reports further that pieces of blade are documented as travelling up to one mile, and have gone through the roofs and walls of nearby buildings.
Lastly, we are still awaiting BSEE’s report on the Vineyard Wind failures so we can better understand what happened and why.
Updatedincident tables for OCS oil and gas operations. The most recent data are nearly 2 years old. The public has a right to timely information on the type of incidents that are occurring, the operating companies, and the resulting casualties, pollution, and property damage.
A summary of incidents associated with the OCS wind program. From press reports, we know about the fatality during Empire Wind construction. What other incidents have occurred to date?
See below. BOEM is reconsidering its approval of the Construction and Operations Plan (COP) for New England Wind 1 and 2. The operator, Avangrid (Spain), is also a partner in the troubled Vineyard Wind project.
If you are keeping score, the approval of these COPs is being reconsidered:
Other projects: Work has been stopped on the Revolution Wind project. Work was previously halted on the Vineyard Wind and Empire Wind projects, but has been allowed to resume. BSEE has still not published its report on the Vineyard Wind turbine blade failure that occurred on 7/13/2024. Other projects have been suspended by the owners at their own initiative (e.g. Atlantic Shores South, Gulf of Maine, Starboard Wind, Vineyard Wind 2, Beacon Wind). Meanwhile, litigation abounds!
Bud's Offshore Energy (BOE) 