This study presents a comprehensive dynamic performance analysis and simulation of a standalone hybrid renewable energy system (HRES) tailored for remote Chinese communities with limited access to the national grid. The proposed system integrates solar photovoltaic (PV), wind energy, and battery storage to ensure a reliable and sustainable electricity supply. Using HOMER and MATLAB/Simulink, various configurations were modeled to evaluate system behavior under fluctuating weather and load conditions. The results highlight the system’s ability to maintain voltage stability, improve energy reliability, and reduce greenhouse gas emissions. Sensitivity analyses demonstrate the adaptability of the HRES to diverse environmental scenarios and its economic feasibility compared to conventional diesel-based systems. This research provides valuable insights for policymakers and engineers aiming to implement clean energy solutions in rural and off-grid regions of China.