AC electric refers to electricity that flows in alternating current, which continually reverses direction. Synonyms for AC electric are alternating current, AC power, AC energy, AC electricity, and AC current. AC electric is used in homes and buildings, powering lighting, heating, ventilation, and air conditioning. It is also used in heavy-duty applications like electric motors, generators, and power transmission systems. Alternating current is known for its efficiency over long distances, making it an essential component in the power grid. The existence of synonyms for AC electric highlights the importance of this electrical system in modern society.