Alternator with external cooling system

Systems and methods are provided for cooling an alternator using a fan that is operationally independent of the alternator and a duct system that at least partially surrounds the alternator. Example vehicles include an alternator cooling system that comprises a fan configured to be operationally independent of the alternator and disposed adjacent to an end of the alternator, and a duct system encasing the end of the alternator. The vehicles further include a control module configured to control operation of the fan based on one or more inputs related to operation of the alternator. Example methods include receiving, at a processor, an input related to operation of the alternator; determining, based on the input, that a preset condition has been met, using the processor; and responsive thereto, generating a control signal to adjust an operating speed of the fan.