Think Carrington Event!
https://en.wikipedia.org/wiki/Carrington_Event#:~:text=The%20associated%20%22white%20light%20flare%20%22%20in%20the,unique%20IAU%20identifier%20for%20this%20flare%20is%20SOL1859-09-01.
Wow! Sparking and fires in telegraph stations! That was a serious solar flare.