I was having this conversation with my daughter and thought it was an interesting topic.
If an EMP or solar flare took out everything electronic in the whole world (permanently), how long do you think it would take for you to die, given your current location and circumstances.
I believe my daughter thinks we would live a lot longer than I do, but she is thinking about how long she can live without the internet while I am thinking the world will quickly descend into anarchy.
With no traditional forms of transport, so supplies would dry up, limited resources, health etc, law and order would be a challenge as things become more desperate.
I think I would live for about 3 months. I would try to get the family somewhere safe and remote and come back later, but I think most people would have the same idea.
I worked closely with an energy company for some time and enjoyed talking with the field maintenace personell and soon discovered that fable of sensible electronics on the power is just that.
Most of the power relies on hardware to control, distribute and protect the grid. And I mean old school hardware, not electronics.
The most electronic dependent part of the grid here is essentially on the end of the line, inside consumers homes, to measure and control the energy delivered and consumed.
Wild fires are more of a menace to power lines and energy distribution than thunderstorms or other massive energy discharges.