Japan has committed to achieving net-zero carbon dioxide (CO2) emissions by 2050, a goal that presents substantial challenges due to the nation's limited domestic energy resources, high population density, and geographic isolation. These constraints complicate the identification of feasible and resilient decarbonization pathways. Similar complexities are faced by other nations pursuing economy-wide carbon neutrality, underscoring the need for robust analytical frameworks to evaluate strategic options.
This study explores alternative technology strategies for reaching net-zero CO2 emissions across Japan’s economy by mid-century. Using EPRI’s Japan REGEN modeling platform—a comprehensive energy-economy system model—the analysis assesses a range of scenarios to illuminate potential technology pathways and trade-offs. The model incorporates detailed representations of electric sector capacity and dispatch, end-use technologies, and non-electric fuel supply chains, including imports of natural gas and petroleum, as well as emerging fuels such as bioenergy, hydrogen, ammonia, and other hydrogen-derived carriers.
Scenario results provide insights into the sensitivity of outcomes to key assumptions, including technology costs, availability, and policy drivers. The findings offer a granular view of energy system transitions at both national and regional levels, supporting informed decision-making for Japan’s long-term decarbonization strategy.
To access Japan REGEN Scenarios v0.1 Beta, click here: https://japan-scenarios.epri.com
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