Electrical energy is a form of energy resulting from the movement of charged particles, typically electrons. It powers many devices and systems, from household appliances to large industrial machines. This energy can be generated through various methods, including fossil fuels, nuclear power, and renewable sources like solar and wind energy. When electrical energy flows through a conductor, such as a wire, it can perform work, like lighting a bulb or turning a motor. The amount of electrical energy consumed is measured in kilowatt-hours (kWh), which helps track usage and costs in homes and businesses.