Power loss refers to the reduction of electrical energy as it travels through a system, often due to resistance in wires or components. This energy is typically converted into heat, which can lead to inefficiencies in electrical systems. Power loss is commonly measured in watts and can impact the performance of devices and the overall energy consumption of a system. Factors contributing to power loss include the material of the conductors, the length of the wires, and the amount of current flowing through them. To minimize power loss, engineers often use materials like copper or aluminum and design systems to reduce the distance electricity must travel.