ScholarWorks@숙명여자대학교

초록

While many studies have conducted Well-to-Wheel (WtW) assessments for zero-emission vehicles (ZEVs) from an individual vehicle perspective, only a few have explicitly analyzed WtW emissions by fuel type for entire vehicle fleets, especially from a long-term perspective. This study specifically examines the long-term GHG emissions of entire vehicle fleets in Korea's transport sector, exploring pathways to carbon neutrality by 2050, with a focus on the WtW emissions of battery electric vehicles (BEVs) and fuel cell electric vehicles (FCEVs). Using a bottom-up transport model, this study finds that in the short term, Well-to-Tank (WtT) emissions account for around 20% of Tank-to-Wheel (TtW) emissions and do not represent a significant portion of the overall WtW emissions. By 2050, TtW emissions decrease to zero under Net-Zero scenarios, while WtT emissions persist, primarily from hydrogen production. Due to Korea's limited capacity for green hydrogen production, importing green hydrogen may be required. The study also suggests that the Korean Government's ambitious FCEV adoption targets might need adjustment, as the market for FCEVs will likely remain limited to specific segments, such as large buses and trucks. Additionally, more effective policy measures, such as strengthening CAFE standards, will be necessary to accelerate the broader adoption of ZEVs.

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