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Global pressures to reduce CO₂ emissions and to lessen the influence of petroleum imports on national economies have accelerated the electrification of automotive power plants. The paradigm shift is driving investment in technologies aligned with electrification, such as electric motors and batteries. It also introduces new challenges for vehicle designers to manage the integration of new subsystems required by electrification. One consequence of increased electrification is a greater difficulty providing occupant thermal comfort. For the first time, automotive system developers must consider the energy required to heat as well as cool occupants and provide thermal management for a growing suite of electronic equipment.