Building on its exceptional turbine performance and reliability, GEs Class I 1.5-77 wind turbine. GE advanced its original Class I wind turbine, the 1.5-70.5, with increased rotor length, and controls technology resulti......Building on its exceptional turbine performance and reliability, GEs Class I 1.5-77 wind turbine. GE advanced its original Class I wind turbine, the 1.5-70.5, with increased rotor length, and controls technology resulting in a greater annual energy production. Focusing on performance, reliability, efficiency, and multi-generational product evolution, GEs Class I 1.5-77 wind turbine continues to deliver wind product leadership. Features & Benefits Highest capacity factor in its class Designed to meet or exceed the 1.5 MW platform’s historic high availability Grid friendly options are available - Enhanced Reactive Power, Voltage Ride Thru, Power Factor Control Wind Farm Control System WindSCADA™ Sharing of components with family products GE’s proprietary 37.0 meter blade Available in both 50 Hz and 60 Hz versions for global suitability