The Liberty 2.5 MW wind turbine brings the wind industry's most valued design standards together with Clipper's purpose-engineered technologies to tackle the industry's most critical technology challenges – namely, the recognized drivers of unscheduled maintenance expense: downtime associated with gearbox and generator stresses; large component change-outs; and crane call-outs.

Beginning with a horizontal-axis, three-blade, upwind, pitch-regulated, variable-speed architecture, Clipper integrated its Quantum Drive® distributed drive train, a two-stage, helical load-splitting gearbox, four separate MegaFlux® permanent magnet synchronous generators, and controls optimized for variable-speed operation with full power conversion.

A number of innovative features were also added to increase worker safety, and provide ease of machine serviceability.

Quality and Testing

Clipper operates with Six Sigma quality assurance practices, including tools and training for manufacturing practices, personnel training and quality assurance of suppliers. Our fleet of professional Quality Control staff is on-site at Clipper's Iowa facility as well as at the plants of our key component suppliers to ensure production to the highest standards. This proactive hands-on approach includes mandatory hold and inspection points within all of our production processes.

In-house Testing: All Clipper gearboxes and generators undergo rigorous testing prior to sign-off and shipment via the use of two specialized, gearbox test stands and one generator test stand located on-site at Clipper's factory.