To design an effective wind turbine, it is essential to understand the characteristics of its electrical generator. While the generator itself does not interact with the wind directly, its properties determine how the turbine’s rotor will respond to the wind. In this way, the generator effects the turbine performance profoundly, and must be designed in tandem with its intended rotor. To enable small wind turbine generators to be tested in the laboratory, a driving dynamometer is designed and built. This test platform is designed to run generators at variable speed and load resistance, up to 240 rpm and 1.0 kW. The dynamometer is tested to establish its own performance characteristics, and is used to test and evaluate a small wind turbine generator. Improvements are proposed that would facilitate its future use testing other small wind turbine generators.