Usage of hydrogen energy is low - just over one in ten has used it - but awareness is high at 82%. Approximately one in ten have never heard of hydrogen energy. The overall image of hydrogen is positive in terms of environmental impact compared to fossil and nuclear energy, although gasoline and...

Hydrogen energy systems (HES) are increasingly recognized as pivotal in cutting global carbon dioxide (CO2) emissions, especially in transportation, power generation, and industrial sectors. This paper offers a comprehensive review of HES, emphasizing their diverse applications and economic...