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MHI Vestas says V164 prototype incident related to testing

Courtesy of MHI Vestas Offshore Wind

November 6 (Renewables Now) - MHI Vestas Offshore Wind on Friday said that the incident in Oesterild, Denmark, where its V164 prototype turbine caught fire on August 4, was caused by a faulty component.

The company explained that, based on the results of an independent investigation, the component was damaged during installation in the prototype’s converter module and was added only as part of testing the prototype’s future upgrade to 9.5 MW. As the procedure was unique to a prototype environment, there is no risk for the MHI Vestas turbines in operation or under construction, according to the announcement.

The joint venture (JV) between Mitsubishi Heavy Industries (TYO:7011) and Vestas Wind Systems A/S (CPH:VWS) also said that the 9.5-MW turbine release remains on schedule.

The prototype had met the requirements for the 9.5-MW type certificate before the incident, MHI Vestas said and added that plans for building a new prototype are still being discussed.

The company announced the launch of the V164-9.5 MW wind turbine in June. The 9.5-MW model has been selected for the 860-MW Triton Knoll offshore wind and 950-MW Moray Offshore Windfarm East projects in the UK.

"Since August 4, we have been in frequent communication with our customers and have worked tirelessly to find the root cause and implement the right mitigation actions," said MHI Vestas chief technology officer Torben Larsen. "We are confident that all procedures and processes in relation to this have been thoroughly and properly updated," Larsen added.

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Plamena has been a UK-focused reporter for many years. As part of the Renewables Now team she is taking a keen interest in policy moves.

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