Prosumers with a photovoltaic-battery system: Comparison of two stategies for imbalance reduction

In the context of grid-connected prosumers with an integrated photovoltaic-battery system, imbalance is the difference between the hourly net energy measured at the point of delivery and the associated forecast. Besides contributing with the increasing of the self-consumption, batteries can also compensate for imbalances if opportunely operated. This paper proposes two strategies to operate batteries so to compensate for imbalances. Proposed strategies are compared each other in term of state of charge of the batteries and their lifetime expectation.