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If EMP were to hit (by solar flare, nuclear, or weapon) then I would want nothing but Solar panels, LEDs, heating coils, wires, wires, and wires.

Can make soldering iron, flashlights, and heater with it. Everything else can fall in place.

Might not hurt to have a solar-powered calculator.

The PV on the roof probably wont help anymore after am EMP. So you‘d need the whole package incl water purifier also in a shielded box

yep, and the magic number of separation of condenser plates to a solar water condenser is 5mm.

I think the PV would be fine, but the charge controllers, anything that uses a coil, might be fried.

EMP's create huge discharges in coils, that's how they "fry" electronics and cars and motors and the more sensitive chips attached to said coils.