The diesel generator market continues to grow, internationally and domestically. Worldwide Power Products offers a wide selection of quality diesel generators in sizes ranging from 20kW – 2500kW. Whether you seek portable or stationary diesel generators―for prime, continuous or standby usage―we can ensure you find what you are looking for. The simplest explanation of a generator’s function: it provides electrical power. A diesel generator is the combination of a diesel engine with an alternator (also called a generator end) to generate electrical energy. This alternator houses electrical conductors which react to the engine’s mechanical energy and convert it into useful electrical power.