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Multiplier effect on reducing carbon emissions of joint demand and supply side measures in the hydrogen market

Oct 20, 2025, 10:00 Room 105, South Teaching Building

Author:Shaohui JiangEditor:Yating FengAuditor:Yang Bai 2025-10-15

Abstract

Hydrogen energy plays a crucial role in replacing fossil fuels and achieving global net zero carbon emissions by 2050. This study identifies three key measures to accelerate the adoption of hydrogen energy: reducing the cost of low-carbon hydrogen through technological innovation, expanding production capacity through investment incentives, and promoting hydrogen utilization in energy systems and industrial processes via demand-side policies.

Using a global computable general equilibrium (CGE) model, the study evaluates the effectiveness of these measures—both individually and jointly—in expanding the hydrogen market and reducing economy-wide carbon emissions. The results show that each measure significantly boosts the production and consumption of low-carbon hydrogen. More importantly, when implemented together, the combined emission reductions in 2050 are 2.5 times greater than the sum of reductions achieved by each measure alone, indicating a strong multiplier effect. The findings suggest that coordinated implementation of supply-side and demand-side policies is essential to maximize the impact of hydrogen energy on decarbonization.

Speaker Biography:
 Dr. Taoyuan Wei is a Senior Researcher at the CICERO Center for International Climate Research. His research focuses on the economics of energy and climate change, with particular expertise in green national accounting and computable general equilibrium (CGE) modeling of energy, environment, and climate issues. Dr. Wei earned his degrees from Renmin University of China and the University of Oslo, and previously worked on national accounting at the National Bureau of Statistics of China. He has published more than 80 peer-reviewed papers, including nearly 70 articles in leading international journals.