Aalborg University, a Denmark-based institute, and Green Power Research Institute, based in China, have developed a standalone DC microgrid designed for off-grid residential systems. The system integrates solar photovoltaic arrays with Maximum Power Point Tracking using a perturbation and observation algorithm, which has been implemented to enhance solar energy harvesting. A BESS is connected through a bidirectional converter to regulate DC bus voltage and maintain system stability. According to the researchers, the control strategy is based on three battery operational modes determined by State of Charge thresholds, charging, discharging, and idle states. Battery sizing has been optimized through load distribution analysis of small households to improve efficiency and extend battery life. MATLAB/Simulink simulations and experimental testing have validated the system’s ability to stabilize voltage, manage State of Charge within defined limits, and minimize power losses.