Standby generators are an essential piece of life-critical in every hospital. While acknowledging, however, that the generators represent a large capital investment, and that maintaining them in reliable running order 'represents a necessary, but significant expense', Leigh Preece, service director of Power Electrics Generators - one of the UK's leading names in the supply and maintenance of standby generation equipment - explains that there are ways for users both to amortise their outlay, and, in the process, to cut their overall electricity costs by 15-20%.