“It is a sort of natural EMP.”
No it is not. Learn your radiation types.
Would you wrap your LED light bulbs in aluminum foil to block “an electromagnetic radiation pulse” when you turn them on?
The dangerous EMP is a Gamma Ray Burst. Gamma rays are a vastly different type of radiation from alpha and beta particles given off by the sun via the solar wind. When the solar wind is big they call it a solar storm, flare, etc. It is the same source. The charged particles given off by the sun. The Key word is particles. They are easily shielded by the earth’s magnetic field, the atmosphere and overhead objects.
The article is talking about a solar storm of alpha and beta charged particles - not a gamma ray burst.
US electrical grids have been using solid state transformers since the 1960s. They can handle the overload of electrical charge from a solar storm easier than they handle a lightening strike. If they trip they can be reset via a radio signal. Lightening strikes cause millions of times more energy spikes to electrical grids than a ‘solar storm’.
Learn your electromagnetic radiation types.
Earth’s magnetic field is weakening. It won’t save us forever.
Learn your transformers. They are always copper (or aluminum) coils around iron cores. The control electronics is solid state.
Learn your transformers.