Systems and methods for dissipating heat from an electrical component using an external structure of a trailer or shed as a heat sink are disclosed. A heat-producing electrical component such as a variable frequency drive (VFD) using an insulated-gate bipolar transistor (IGBT) is housed in a trailer and is thermally coupled to an exterior wall of the trailer to use the wall as a heat sink to dissipate heat from the VFD and IGBT. An adapter can be used to couple VFDs and IGBTs of different sizes and configurations to a support site on the exterior wall.