Control and stability of the electric supply network can be achieved by rapid deployment of hydrogenerated electricity. However, the ease and flexibility with which a hydrogenerating unit can be controlled compounds the equipment deterioration associated with normal energy conversion and the attendant forces acting on the large structure. Frequent changes in operating conditions produce cyclic stresses on the active components of the generator. These conditions often result in the onset of undetectable failures, emphasizing the limitations of conventional monitoring technology for immense generators. Because most hydrogenerator deterioration is associated with the stationary structure, a new monitoring scheme was implemented by mounting a complement of sensors on the rotor to scan the stator.