Domestic sewage treatment plants play a crucial role in managing wastewater from households. As urbanization increases and more people move into cities, the demand for effective sewage treatment becomes more pressing. One of the key considerations in the operation of these plants is their energy consumption. Understanding how much electricity a domestic sewage treatment plant uses is essential for evaluating its efficiency and environmental impact. This article will explore various aspects of electricity usage in sewage treatment plants, including the factors influencing energy consumption, the technologies involved, and strategies for reducing energy use.