AC and DC Coupling

Backup for preexisting PV systems

The most common solar photo-voltaic system is the grid-tie-only system. Owners of these systems are often surprised by the fact that they have no power during a grid outage even if the sun is going strong. Grid-tied-only inverters can not and are not allowed to function without the power grid. In order to benefit from your existing solar photo voltaic system during a grid outage, additional equipment including a battery bank needs to be installed.* AC coupling and DC coupling are two common solutions.

*All electrical work is done by licensed electricians.