The term "power grid" refers to an interconnected network of electric power stations, transmission lines, and distribution transformers that deliver electrical energy from producers (generators) to consumers. It is a complex system designed to provide reliable and uninterrupted supply of electricity to homes, businesses, and industries. The power grid includes high-voltage transmission lines, substations, and transformers that step down the voltage for distribution to lower voltages used by end-users. Power grids are typically operated by utility companies or regional energy authorities, who manage the generation, transmission, distribution, and regulation of electricity supply in their service area.