A Bi-Directional System combines the best of both worlds. It is a combination of a Hybrid System and Grid-Tied System. Bi-Directional systems allow the user to reduce electricity cost and still have backup when the power goes out.
Unlike a traditional Grid-Tied system a Bi-Directional system will still function even if there is no power from Eskom. Batteries will be installed to provide backup in case of an interruption in the Eskom feed. Two inverters will be installed, one dealing with the batteries and one dealing with the Grid-Tied component.
A Bi-Directional system is ideal for both commercial and residential clients who need to reduce cost but still be able to function during load shedding.