A fused grid is like a large highway system that helps electricity get from one place to another. Think of it like when you travel in a car - you have roads that cars can drive on, and those roads can connect one city to another city. A fused grid is the same, but instead of cars, it has electricity traveling along wires. The electricity takes different routes to reach the people who need it, like homes, businesses, and hospitals. This system helps make sure electricity is always available when people need it.