What is actually happening in the electricity grid when demand is greater than supply?

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I was thinking on the drive home for work that the ever increasing number of electric vehicles will likely mean an increasing demand on the energy infrastructure’s of countries.

But what is actually happening in the electricity grid if supply can’t meet demand? Is it simply the devices furthest away from the generation of power won’t receive current?

Whilst this is ELI5, I also wouldn’t mind a slightly more technical answer. Thanks!

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8 Answers

Anonymous 0 Comments

In the AC system we use, it means that the frequency of the current drops. This causes huge problems for anything that has a timer, since timers are calibrated with AC pulses. It also decreases the force received by everything connected to the network.

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