This is so important. The entire electrical grid is vulnerable and can be taken out by a solar super storm, they generally occur on average every 150 years with the last one in 1859, or by a single nuclear explosion above the atmosphere. It would take out the main primary transformers. We have about 2000 of them installed in our grid. These are the most critical component in our grid. We would be without power for maybe years, because we do not have the inventory or the present ability to build these transformers. That means no cell service, no internet, no gas, no AC, no heat, no flowing water, etc.. We could protect the system at a relatively low cost by installing Gaussian shields around the transformers and installing surge protectors for them. This is a real thing to be concerned about!
Check out this video.
Check out this video.