I'm surprised to not see any discussion about the cost to effectively harden a home solar system (or business one depending on size) against this kind of surge

I'm surprised to not see any discussion about the cost to effectively harden a home solar system (or business one depending on size) against this kind of surge and damage. I could easily see locations with adequate rooftop solar to be mostly grid independent becoming a valuable part of rebuilding. If nothing else they might provide powered community centers and a way for people to recharge surviving small electronics. I can kind of understand why utilities would not be going ahead in investing in this on their own, because they are basically having to look at interests of their investors and anyone spending hundreds of millions or billions of dollars to protect effectively their part of the grid would probably not last long in a position. In addition, even if they took steps it's entirely possible or even likely that they would be negatively impacted or completely neutralized by incoming damage from other parts of the grid. It's also worth keeping in mind that the power grid in the US is not uniform. I believe the Texas is mostly a separate grid, and I'm pretty sure that there are multiple other places where there's some cross connect but the bulk of power control is through separate regional grids.