The hybrid system is the combination of on-grid and off-grid systems.You are still connected to your existing utility provider while having the solar panels and a back-up battery. Your primary source of energy is going to be the solar panels and the back-up battery. Utility provider will only supply you if the energy demand of your house is higher than the generation of your solar panels and the energy stored in the back-up battery. This is ideal for bringing your utility bill close to zero every month and sustaining your energy at night and during power outages.