NASA is planning for Space Weather Follow-on mission in 2025 that's going to stick a probe at L1 point between the Earth and the Sun, providing some ~22 mins of heads up when shit hits the fan (Carrington-like event).

Unfortunately, I am not aware of any emergency procedures that can benefit from such an alarm in DOE or any public electricity infrastructure. They might very well exist, anyone knows?

https://en.wikipedia.org/wiki/Space_Weather_Follow_On-Lagran...