Mike,
Enphase makes a whole microgrid setup. The batteries come in 3.4 kwh (encharge 3) and 10 kwh (encharge 10) capacities. The hub that connects the grid, the panels, the batteries and the home is called the "enpower smart switch".
Read all about it here:
https://enphase.com/en-us/ensemble-t...ase-installers