Once they stop paying me to be on grid and there are decent batteries available more cheaply - which seems to be getting better every year - I’m gone. The incentive program has already been changed but I’m grandfathered in until ~2040. If the net metering changes, I dunno what I’d do, but since there hasn’t been even a whisper of that happening or what they’d change it to… probably a non-issue.
It’s different in different places, yep. Some states don’t do net metering at all, some do it on a monthly basis and the excess each month is sold to the grid (at wholesale price, roughly 20% of what we pay), and some do it on a yearly basis with the excess only sold off at the end of the year. My state is actually one of the better ones as far as net metering rules, since it’s yearly and also allows you to choose when that year starts for more flexibility.