The 4.1MW direct-drive machine – nicknamed ‘Big Glenn’ – completed a 200-hour trial in Gothenburg harbour with 99% availability and a capacity factor of 35.3% in wind speeds ranging up to 14 metres-per-second (m/s).
The turbine, which has rotor diameter of 113-metres, is designed for a cut-in speed of 3.5m/s and to cut-out at 25m/s.
“The variation in wind speed gives the team confidence that the turbine performs reliably under all wind conditions,” says GE Energy offshore product manager Vincent Schellings.
