For a long time, battery-powered electric vehicles were hailed as the solution to building carbon-free global economies and reducing emissions. However, with a decline in demand for electric cars, the focus has now shifted towards fuel cells and hydrogen as the new frontier in sustainable transportation. Hydrogen is increasingly being viewed as a clean and efficient energy source to power the cars of the future. Fuel cells, which convert hydrogen into electricity to drive the vehicle, are gaining prominence in research and development efforts. This transition from electric to hydrogen-powered vehicles signifies a pivot towards more environmentally friendly solutions in the automotive industry. The use of hydrogen in fuel cells not only promises zero emissions but also plays a vital role in reducing the dependence on fossil fuels. The buzz around hydrogen as a fuel for transportation reflects a growing recognition of the need for alternative energy sources to combat climate change and achieve a more sustainable future.