A Resistive load applied at a power factor of 1.0 (unity), provides stable and accurate load to prove engine output at the point of build or commissioning. Resistive loadbanks can also be used to keep engines in peak condition where the actual applied load is lower than the output of the engine. To avoid excessive carbon build-up and the associated oil pressure and turbo-charger problems, a regular resistive load is a cost effective way to protect power generation assets.