M. Chakraborty 02 07 Green hydrogen has emerged as an alternative potential energy source for a clean and sustainable future It is versatile has high energy content and derived from renewable energy sources It has the potential to replace traditional energy sources like fossil fuels In this article we have introduced hydrogen as future energy carrier with its various types and production methods and storage techniques We also discussed about its various applications and limitations This study offers perceptions about overcoming the challenges and accelerating the worldwide adoption of carbonfree and sustainable energy source for future generation Copyright (c) Journal of Science Engineering Technology and Management Science. All rights reserved 2026