What is power design? Thermal design power. The thermal design power (TDP), sometimes called thermal design point, is the maximum amount of heat generated by a computer chip or component (often a CPU, GPU or system on a chip) that the cooling system in a computer is designed to dissipate under any workload.What is power system design? In electrical power engineering, power systems CAD is computer-aided design (CAD) software that is used to design and simulate electrical power systems in commercial and industrial buildings.What is electrical power design? Electrical design is the process of planning and creating electrical equipment, such as electrical components, schematics, lighting equipment, power systems, and telecommunications infrastructure. Electrical design software and tools address the specific workflows for electrical controls systems designers.