RWE AG is running its 295-megawatt Nordsee Ost wind farm in the German North Sea at half capacity after a Senvion SE wind turbine lost a rotor blade.
RWE halted all 48 turbines when the incident occurred on June 19 and restarted about half of them the same day, the Essen, Germany-based utility said by e-mail on Wednesday, without commenting on potential damage costs.
“A complete investigation is being conducted to find out the cause,” Verena Puth, a spokeswoman for Senvion, said in an e-mailed statement. Initial research suggests it was an “isolated incident,” she said.
RWE invested more than 1 billion euros ($1.1 billion) in the Nordsee Ost project, north of Helgoland, which generates enough power for 320,000 homes.