The article investigates whether using green hydrogen made from renewable sources in fuel cell electric vehicles is economically viable for China. The researchers studied the cost of producing hydrogen and owning fuel cell cars compared to traditional vehicles. They found that the government's focus on commercial fuel cell vehicles rather than personal cars is unique compared to other countries and aimed to understand why. By analyzing the expenses and carbon emissions of the entire process, they suggest that using renewable hydrogen in fuel cell vehicles could be an effective and environmentally conscious choice for China's road transport sector.