Stochastic Demand-Side Management for Residential Off-Grid PV Systems Considering Battery, Fuel Cell, and PEM Electrolyzer Degradation

Mohamed A. Hendy, Mohamed A. Nayel and Mohamed Abdelrahem ()
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Mohamed A. Hendy: Electrical Engineering Department, Assiut University, Assiut 71516, Egypt
Mohamed A. Nayel: Electrical Engineering Department, Assiut University, Assiut 71516, Egypt
Mohamed Abdelrahem: Electrical Engineering Department, Assiut University, Assiut 71516, Egypt

Energies, 2025, vol. 18, issue 13, 1-30

Abstract: The proposed study incorporates a stochastic demand side management (SDSM) strategy for a self-sufficient residential system powered from a PV source with a hybrid battery–hydrogen storage system to minimize the total degradation costs associated with key components, including Li-io batteries, fuel cells, and PEM electrolyzers. The uncertainty in demand forecasting is addressed through a scenario-based generation to enhance the robustness and accuracy of the proposed method. Then, stochastic optimization was employed to determine the optimal operating schedules for deferable appliances and optimal water heater (WH) settings. The optimization problem was solved using a genetic algorithm (GA), which efficiently explores the solution space to determine the optimal operating schedules and reduce degradation costs. The proposed SDSM technique is validated through MATLAB 2020 simulations, demonstrating its effectiveness in reducing component degradation costs, minimizing load shedding, and reducing excess energy generation while maintaining user comfort. The simulation results indicate that the proposed method achieved total degradation cost reductions of 16.66% and 42.6% for typical summer and winter days, respectively, in addition to a reduction of the levelized cost of energy (LCOE) by about 22.5% compared to the average performance of 10,000 random operation scenarios.

Keywords: stochastic demand side management; hydrogen; degradation; PEM electrolyzer; fuel cell; self-sufficient house; hydrogen cooking (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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