Pretty decent video that looks at the grid, impacts from Geomagnetic storms and what steps and equipment operators have in place to protect the grid. I think its worth a few minutes of your time to review.
Yep I put it on S0 today as soon as I realized at work I was having more motor and drive problems than usual and just as I expected, level 1 geomagnetic storm.
Ercot has mandated a lot of transmission line grounding for CMEs. I'll let someone smarter than me explain live line grounding and Vars and whatnot.
In 1998/99 I was writing the technical and operations manual for the Alaska United system (Alaska United - Wikipedia) Once we lit it up and started testing - we saw some pretty significant voltage swings on the DC supply cable. Kinda cool to see planetary processes in action - other than crappy propagation on 20M. Senior management started freaking out - not techs or engineers, so understandable. The HAARP system was still active at the time and I was able to show the SM that a geomagnetic storm was in progress. I was happy to have one so early - this allowed me to capture data points and rewrite the alarm setting table set. Still working today....
