Massive Fireball Roars Through Suburban Power Lines, Blows Out ElectricityMac Slavo In this instance the surge caused a cascading electrical outage across one neighborhood. Imagine what such an event would look like across the entire national power grid. Then consider how long it would take to bring essential services like hospitals, communication system, commerce processing, and banks back online. We could have events in the future where the power grid will go down and its not, in any reasonable time, coming back up. For instance, if when the power grid went down some of our large transformers were destroyed, damaged beyond use, we dont make any of those in this country. Theyre made overseas and you order one and 18 months to two years later they will deliver it. Our power grid is very vulnerable. Its very much on edge. Our military knows that. Related Reading: 