Battery-backup grid-tie systems come with modules, array wiring, combiner boxes, roof mounting structures, inverters/control systems with all required over-current protection and disconnects. (Your specific installation or utility may require additional AC disconnects, which we can supply as needed). They require a 48-volt battery bank to operate. The size of the battery determines the amount of backup power available during power failure. Use the worksheet on the next page to determine battery bank size.

Battery backup systems qualify for the California Energy Commission incentives and the federal tax credit.

Grid-tie systems with battery backup are configured differently and are much more complex than standard grid-tie systems without batteries. They need to be custom designed. If you need a backup system, consult with us to determine all the system components that you will need. .

Inverters for Grid-Tie with Battery Backup

OutBack also makes inverters and switchgear that can be assembled into larger grid-tie w/ battery backup systems.

Xantrex XW Series of inverters offers grid-tie inverters with battery backup capability in 6000-watt increments. Several can be stacked for 12kW or 18kW battery backup systems.