You don't have to use net metering in residential either. Grid-supported hybrid inverters that won't export power can be installed. Bonus is that they run when the grid is down. It's effectively like having an automatic transfer switch where the grid is the backup generator when your batteries are drained. The profit margin for the pro installers is reduced so they don't promote them, but it is a viable route to save money and avoid hassles with the power company on a self-install.