Interconnected grids refer to a network of electrical systems that are linked together to share power. This allows electricity to flow between different regions, ensuring a more reliable and efficient supply. When one area experiences high demand or a power outage, electricity can be drawn from neighboring grids, helping to stabilize the overall system. These grids often include various sources of energy, such as renewable energy from solar panels and wind turbines, as well as traditional fossil fuels. By connecting multiple grids, operators can balance supply and demand more effectively, reduce costs, and enhance the resilience of the energy infrastructure.