국내 에너지 다소비 산업의 수소 에너지 적용성 분석

초록

This study assesses the greenhouse gas (GHG) reduction potential of replacing 10% of energy consumption with hydrogen in Korea’s energy-intensive industries from 2020 to 2050. GHG emissions per kilogram of grey, blue, green, and imported hydrogen were estimated based on national hydrogen production targets. Comparison of hydrogen demand and supply shows deficits of 2,861 thousand tons in 2020 and 79 thousand tons in 2030, but a surplus of 22,414 thousand tons by 2050, enabling up to 50% substitution of industrial energy. Emission analysis indicates reductions of 36% in 2020, 70% in 2030, and 81% in 2050 relative to conventional fuels. In relation to national targets, hydrogen adoption contributes 5% of total 2023 reductions, 399% of the 2030 hydrogen-sector target, and 372% of the 2050 Scenario B target. These findings highlight the critical role of large-scale hydrogen deployment, particularly green and imported hydrogen, in achieving deep decarbonization of Korea’s industrial sector.

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