The research conducted by Dr. Joungho Park and his team at the Korea Institute of Energy Research showcased the significance of green hydrogen in enhancing the stability of renewable energy grids. By utilizing a green hydrogen system, which efficiently converts and stores excess energy from wind and solar power sources, the study demonstrated a solution to the variability and intermittency issues associated with renewable energy. The findings emphasized the pivotal role of green hydrogen in ensuring a balanced deployment of solar and wind energy to achieve economic efficiency and minimize power supply losses. The developed model, based on real-world data from Jeju Island, offered insights into optimizing the scale of green hydrogen systems to meet renewable energy targets. The study's collaboration with the University of Southern California underscored the international relevance of the research in advancing sustainable energy technologies. Dr. Park highlighted the practical implications of the research for governments and businesses in devising green hydrogen strategies tailored to regional energy needs, thus supporting informed decision-making for a greener future.