Energy storage control methods for demand charge reduction and PV utilization improvement

This paper proposes optimal strategies for control of distributed Energy Storage Systems (ESSs) to minimize Demand Charge (DC) cost and maximize local Photovoltaic (PV) utilization for Commercial & Industrial Buildings. Reducing DC cost has a direct impact on customer's electricity bill while increasing local PV utilization can help the efficient operation of distribution systems. Model-based optimization methods are presented for each individual objective. Furthermore, a multi-objective control strategy has been implemented and studied to show the possibility of stacking both services on a single ESS. Simulation studies are carried out to show optimal operation of a sample ESS unit in each scenario.