Many data centers currently rely on fossil fuel-based generators for backup power, causing noise and pollution issues. Hydrogen fuel cells offer a sustainable alternative, producing electricity through an environmentally friendly chemical reaction. The benefits of hydrogen fuel cells include efficiency, quiet operation, and scalability, making them ideal for data centers. Challenges like temperature sensitivity, cost, safety concerns, and hydrogen leakage need to be overcome for broader adoption. The industry must undergo further research and infrastructure development to fully leverage hydrogen's potential as a renewable energy source. While hydrogen fuel cells hold promise for a sustainable energy future, ongoing advancements are necessary to ensure their environmental friendliness and efficiency.