He's right. The electromagnetic (EM) fields have to go a certain
way for the power grid to work. if they get disturbed (like
reversing the polarity making North become South and swapping
directions), not only would we lose the power grid, but all
electronics would be unuseable. (it happened in Canada a couple
of years ago when sunspot activity destroyed the power grid for
a few unlucky square miles of towns. The sunspots shot out a
HUGE solar flare that was both energy and magnetic - messed it
all up. Earth is technically within the Sun's reach, which is
really pretty freaky. "