Hydrogen power is increasingly viewed as a promising green alternative to traditional fossil fuels due to its production using renewable energy sources like wind and solar. Despite facing challenges in the past decade, the hydrogen industry is poised for a resurgence as technology improves and macroeconomic conditions become more favorable. Estimates suggest remarkable growth for the hydrogen market, with a projected CAGR of 30% for fuel cells and 45% for hydrogen vehicles in the coming years. Plug Power, specializing in hydrogen fuel cells for forklifts, has experienced revenue growth and secured a substantial loan from the DOE for expanding green hydrogen energy production facilities. The company's stock, undervalued with significant growth potential, is attracting investor interest. Nikola, a player in electric semi-trucks, has made progress in the hydrogen fuel-cell electric truck segment despite past setbacks. The company aims to increase FCEV shipments and establish a network of hydrogen charging stations in the U.S. Analysts predict substantial revenue growth, making Nikola an appealing investment option in the evolving hydrogen vehicle market. Overall, both Plug Power and Nikola present promising investment opportunities in the growing hydrogen market, fueled by advancements in technology and a shifting economic landscape.