It missed us by 9 days

Sounds like we should have backup parts on hand and available to replace things immediately when an event like this passes in the next few years, or even have planned shutdowns of essential parts of the grid, if possible, while its happening if we know it's going to happen for sure. If we can minimize the damage and have parts ready to go in, it should mean having power back faster overall and less costs to repair everything. My question would be how much warning we would have to shut things down if this actually occurs, or if it would require running everything on local battery power for days or weeks to actually avoid damage. How prepared are we to take precautions at all? Do the power companies and politicians accept this as a real possibility or are they banking on it not happening? Are they considering the cost of being wrong or of letting something like this take infrastructure down unmitigated? Are we preparing backup power and generators for people on life support systems and hospitals leading up to the probably timeframe?