GH2 Networks: Production, Supply Chain, and Storage

Climate changes and the urgent need for clean energy in the international community and the acceleration of the improvement of the green economy add to the importance of hydrogen energy and a strong support for a sustainable society. Due to zero carbon emission, high energy intensity, and high conversion efficiency, hydrogen energy has many advantages over traditional fossil fuels. The International Energy Agency (IEA) predicts that it will reduce the amount of CO2 to 80 Giga tons by 2050. So far, more than 30 countries and regions have issued green hydrogen (GH2) production strategies. In order to promote the GH2 market globally and evaluate lifecycle and emissions of greenhouse gases, it offers different hydrogen production methods based on official standards. In this chapter, we generally discuss the principles, development rate, significant research points, and technologies and challenges of GH2 production around the world and the general state of global hydrogen energy.