From the NIAC Catastrophic Power Outage Report from the President’s National Infrastructure Advisory Council – December 2018
There is a lack of understanding of the cascading, cross-sector interdependencies between [electrical] infrastructure and what that means for prioritizing backup generation and other limited resources to maintain services and functions during a long-term, widespread outage.o Hospitals and other mass care providers are often at the top on priority restoration lists,however, for example, some of the water and wastewater treatment facilities they rely on are not. Without working water or wastewater systems, hospitals are unable to function. There may even be a lack of understanding of which hospitals are the most critical to prioritize restoration.
There is no common understanding of how long downstream sectors should be prepared to go without power, and what other services could be affected by the cascading impacts of a catastrophic outage.