If you have batteries, you will likely not even know the power went out! You can keep doing what you’re doing.
If you’re connected to the grid with Net Metering, during a grid failure, in most states, you will not be able to utilize your solar generated energy during a power outage. Weird, right? Nah, it’s safety. This is in place to protect the workers on the line from any excess energy production passing through the lines while they are actively being worked on which could result in serious injury or worse.