Power grids are complex networks that deliver electricity from producers to consumers. They consist of various components, including power plants, transmission lines, and substations, which work together to ensure a reliable supply of electricity. The efficiency and stability of power grids are crucial for modern society, as they support everything from homes to industries. In addition to delivering power, grids also manage the flow of electricity to prevent outages and maintain balance between supply and demand. Advances in technology, such as smart grids, are enhancing the capabilities of power grids, making them more resilient and efficient in the face of growing energy needs.