Built off GE’s 2 MW platform, the Sierra platform is designed specifically for North America to deliver high-capacity factor with balance of plant simplicity, and reliable, bankable performance.
New yaw system with hydraulic braking
GE’s patented Advanced Loads Control system
Low noise trailing edge & noise reduced operation
Easier Hub Entry
3 hub hatches to access hub internals
Direct internal access to fastening & pitch bearing hardware
Low torque bearing to reduce mean load
Simplified design to improve accessibility
Doubly-fed induction generator with power converter
Grid voltage support to quickly supply/draw reactive power
Down Tower Assembly
Streamlined for installation & commissioning
External pad mounted transformer for reduced losses
Converter uses a MarkVIe controller to provide dynamic reactive power
Sierra platform: The future of onshore wind
Capture even more wind energy while improving economics
Tested & validated
Built on the legacy of GE’s bestselling 2 MW platform, which recently surpassed 30 GW of installed base globally.
High capacity factor turbines
High-capacity factor turbines with reduced pads per site (50% decrease in pads per 100 MW).
The 68.7m two-piece blades enable improved logistics, installation and O&M.
Building on bestselling technology
Playing on the successes of the 2 MW technology, the Sierra features a 140-meter rotor and is offered with a variety of hub heights, including a <500’ option. The Sierra platform includes GE’s revolutionary two-piece blade, designed to improve logistics and installation.