10 big wind turbines | Windpower Monthly
2. Siemens Gamesa SG 8.0-167 DD. Power rating 8MW Rotor diameter 167m Drivetrain Direct drive IEC Class S (1B). Siemens Gamesa's machine is another big turbine that has benefited from regular and incremental evolutions since its initial launch in 2011 as a 6MW unit with a 120-metre rotor.. This SG 8.0-167 model was launched at the WindEurope conference in Amsterdam in November 2017.