Having onsite power backups, and a plan for resilience to a multi-day outage. Battery backups (electric cars like the F150 lightning are starting to offer this

Having onsite power backups, and a plan for resilience to a multi-day outage. Battery backups (electric cars like the F150 lightning are starting to offer this as a side capability), gas generation, and an understanding of how to minimize power usage in your home to bare essentials. Acquire air conditioning in advance. Portable units are easy to source outside of peak season. Have an "AC" room you can use to sleep/work if needed, don't try to cool the entire house. Buy a purifier if health concerns are elevated.