The two versions of the turbine are to all appearances the same. At the heart of the design, the drivetrain remains a three-stage medium-speed geared system that steps up the ten to 12 revolutions per minute (rpm) of the rotor to 400rpm inside the liquid-cooled permanent-magnet generator.

But fine-tuning, according to chief technology officer Anders Vedel, has led to a higher-output version of the machine “that will offer lower cost of energy without sacrificing the reliability or structural integrity” of the original design.