Model 3.1 is the first fully functional demonstration of this technology which combines the features of mass-production design elements with full dynamic optimization capabilities. The system underwent extensive sea trials during late 2013 off the New Hamshire coast. During that time, the 3-meter, 3-ton system was exposed to several gale-force storms and waves exceeding 20 feet in height. The tests demonstrated the seaworthiness of the design and power generation within the expected range. In addition, the tests collected valuable data to help engineers refine the design and begin designing much larger versions of the system.