Electricity networks are systems that deliver electrical power from generation sources to consumers. They consist of various components, including power plants, transmission lines, substations, and distribution lines. These networks ensure that electricity generated from sources like solar panels, wind turbines, and fossil fuel plants reaches homes and businesses efficiently. The main functions of electricity networks include transmitting high-voltage electricity over long distances and distributing it at lower voltages for safe use. They are essential for maintaining a stable supply of electricity, managing demand, and integrating renewable energy sources into the grid, which helps reduce reliance on non-renewable resources.