A power generation system that includes a generator comprising an alternator and an internal combustion engine configured to drive the alternator to generate power. The power generation system may provide power to one or more loads. The power generation system may further include an enclosure that houses the internal combustion and the alternator. The enclosure may include one or more openings and that permit air to flow into or out of the enclosure. The power generation system may include a mechanism that may regulate the flow of air through the openings in the enclosure. The mechanism may include a cover that may be positioned adjacent to the opening. The mechanism may control the position of the cover. The power generation system may further include a module that may monitor or measure a load of the power generation system and provide control to the mechanism.