It missed us by 9 days

So- you need a follow-up video- what precisely can be done?  Is it only areas facing the sun when a super geomagnetic storm hits?  Can we see this coming before it hits?  And if so, how much warning would we have?  Is it as simple as shutting down the grid for an hour (I know- easier said than done, but is it a solution).  Or do we need the world's largest surge suppressor?