|  | Solar Electric Grid-Tie w/Backup Basic Idea: We install PV panels on your roof just like a grid-tie system. Instead of connecting your PV panels to your main electrical panel, we connect to a backup electrical sub-panel. This sub-panel will contain circuits that will remain on in the event of a power outage. Next, we install a small battery bank with a battery charger/inverter. This will allow the battery to power the sub-panel during a power outage and keep your important loads running.
 | During normal operations the grid-tie w/battery backup works just like a grid-tie system. |
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 | During a power outage the battery charger/inverter will disconnect from the main electric panel and use the batteries or the PV to power the sub-panel. |
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| The sub-panel circuits will remain on in the event of a grid failure. |
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 | During the day the sun will power the sub-panel while charging the battery with whatever is left over. |
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 | At night the batteries will power the sub-panel. |
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