It is a radial flux, permanent magnet, air-cooled, multi-plate generator which has been developed in-house by C&F. Although costly to manufacture, this type of generator affords significant advantages. It can run at 80rpm, and even at full power is only running at 75% of its available capacity. These generous operational margins will increase the lifespan of the unit.
No core is used in the coil so that, over time, magnet leakage cannot adversely affect the turbine performance. The coils are individually encapsulated, which gives significant protection from the elements and from the ingress of debris. The axial configuration allows a modular construction which enables segregation of the output for different independent electrical loads.