How long would it take for electricity and water (or general utilities) to stop being functional in an apocalyptic setting?

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I have this idea for a story were the surrounding infrastructure is intact. Now barring regular maintenance, how long would it take for existing infrastructure to not function? How long could a house run on existing utilities?

Thanks for the help!

In: Engineering

11 Answers

Anonymous 0 Comments

The water needs electricity to pump it and to power the processing so as soon as the water plants lose electricity there will be no mains water. Most electricity plants are automated so will continue to function for days after, however there may be issues with shorting happening in the distribution and some plants having automated shutdowns to avoid problems, coal fired power stations will rapidly run out of fuel so will likely be the first ones to stop.

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