Now a team of researchers from Harvard University, Shandong University and Huazhong University of Science and Technology have explored the potential harnessing of China’s wind energy to produce carbon-free green hydrogen at a cost lower than that of coal-derived black hydrogen. If green hydrogen can prove cost-competitive with black carbon for existing industrial uses, it may have even greater decarbonization potential as a zero-carbon energy source in key sectors that are otherwise difficult to decarbonize, including iron & steel production, cement making, and heavy-duty transportation.
The researchers chose Western Inner Mongolia, with its high wind power generation and large coal and black hydrogen production, as a representative region to estimate the technical and economic feasibility of producing green hydrogen using wind power. The results show that green hydrogen produced from wind power is competitive with black hydrogen, with large production levels possible at less than US$2/kg – a widely recognized threshold for cost-competitiveness. And by 2030, shifting black hydrogen to green hydrogen derived from Western Inner Mongolia’s growing wind power for use as industrial feedstocks alone could reduce about 100 million tons of CO2 emissions per year, equal to roughly half of the entire carbon footprint of the megacity of Beijing.