This article discusses hydrogen technologies for stationary and transportation uses. It talks about making hydrogen from sustainable sources to be clean and affordable. Different ways to produce hydrogen are explored, each with its own challenges and benefits. The article also looks at building infrastructure for hydrogen in transportation and the difficulties of storing hydrogen. To use hydrogen in fuel cells, we need to make sure the supply is sustainable and that we can produce it in many places. Overall, we need a big, long-term way to store hydrogen to keep up with the growing demand.