Causing a power outage, can it be calculated?

[Numbersguy]

You know, I have seen this a few times.

If a character (Let's say by powering up or something) causes a city wide power outage, it can be calculated?

To avoid other stuff, the character by powering up doesn't cause a quake or the character doesn't have electricity manipulation.

Example

 

[Theglassman12]

It doesn't look like it can be calced. The situation looks to vague for the user to be calced. For all we know, his/her powering up may destroyed some electric wires underground, causing a chain reaction to the whole city.