Forstchen’s book is not about a Solar Flare.
A solar flare cannot do what is described in the book. A solar flare does not impact electronics.
Factor in the effects of Ground Induced Currents, and get back to us.
The headline mentions “EMP disaster” — that’s what prompted me to mention Forstchen’s book.
http://www.solarstorms.org/SWChapter1.html
If a solar flare takes out all the major transformers in the power grid, that will indirectly affect all electronics. No power grid, no recharging, and no shipping. No shipping, no batteries, and no fuel after local tanks go dry by siphoning. A solar flare might not have as large an initial impact as an EMP attack but long term, how much different would the effect be? The large transformers required to restore our power grid are built as needed, and now overseas. How long would it take to build, transport and install all those transformers? Would it ever happen, for that matter, if they're mostly made in China now?