To address this issue, this paper proposes a two-stage optimal scheduling strategy for peak shaving and valley filling, taking into account Photovoltaic (PV) systems, EVs, and Battery Energy Storage Systems (BESS). The system helps to optimize electricity usage, reduce peak demand charges, and improve grid stability. However, excessive capacity increases investment cost, whereas insufficient capacity limits opera-tional effectiveness. Energy storage systems (ESS), especially lithium iron phosphate (LFP)-based. The significant volatility of distributed generation and the uncoordinated charging behavior of Electric Vehicles (EVs) exacerbate the peak-valley disparity in industrial park distribution networks, adversely affecting the stable operation of power systems.