The integration of renewable energy sources into electric grids is essential for carbon neutrality goals, but intermittent sources like wind power pose challenges. Power-to-hydrogen systems, specifically using PEM electrolyzers, offer a solution. Liu et al. conducted a study proposing a dispatch strategy for grids with PEM electrolyzers to optimize electricity and hydrogen production. Results showed improved economic performance, reduced wind curtailment, and enhanced hydrogen production efficiency. The study's model considered part-load efficiency, crossover effects, and auxiliary power consumption. The strategy decreased total operating cost by 1.2% compared to constant efficiency models. PEM electrolyzers proved beneficial in scenarios with high wind power generation and precise dispatch decisions, lowering hydrogen production costs. The research suggests economic advantages even with varying coal and hydrogen prices. It provides a framework for grid operators and policymakers to enhance grid flexibility, decrease costs, and maximize renewable energy utilization, particularly in regions with high renewable energy penetration.