On a city-wide energy grid, you may have multiple systems of generation: wind, coal, nuclear while some, especially coal, may be redundant.
Then, we could also have multiple interconnected grids. An example of this would be localised community energy production that’s combined with city-wide production.
Because it’s becoming ever more important to ensure resilience with communities cut off from energy by extreme weather events, or supplies becoming threatened, failover between two grids provides a very reliable solution.
The ability for one to seamlessly support the other introduces a net increase in energy security for everyone and reduces the harm associated with black-outs. Prioritising redundancy and failover of energy systems is then directly connected to Social Resilience.
Should catastrophe occur, resilient networks will lessen negative impact by increasing the resilience of individual communities to keep everyday life going by keeping energy flowing.