A solar storm will not generate an EMP that can impact electronics - so no need to build a faraday cage for this event.
A solar storm will impact the grid - it will be interesting to see how the grid operators will react to this. If it’s significant - they have more ability to monitor grid components than they ever have had. They’ll have a whole range of options - de-integrate the grid and operate “islands” to keep GIC from being transmitted across grid boundaries - to shutting down major elements of the grid (765kV lines, for instance)
Folks should think about preparing for a power outage of a few hours to a few days in duration. That should cover the most likely contingencies.
I’ve already got the “call” from our regional grid operator. Next 24-48 hours could be interesting to anyone connected.
“A solar storm will not generate an EMP that can impact electronics - so no need to build a faraday cage for this event.”
RFEngineer, you are missing a few variables in your calculations....