Japan 2026

Energy Policy Review

Nighttime aerial view of an intersection in Osaka Japan shutterstock 779959912

About this report

Government action plays a pivotal role in ensuring secure and sustainable energy transitions. Energy policy is critical not just for the energy sector but also for meeting environmental, economic and social goals. Governments need to respond to their country’s specific needs, adapt to regional contexts and help address global challenges. In this context, the International Energy Agency (IEA) conducts Energy Policy Reviews to support governments in developing more impactful energy and climate policies.

This Energy Policy Review was prepared in partnership between the Government of Japan and the IEA. It draws on the IEA’s extensive knowledge and the inputs of expert peers from IEA Member countries to assess Japan’s most pressing energy sector challenges and provide recommendations on how to address them, backed by international best practices. The report also highlights areas where Japan’s leadership can serve as an example in promoting secure and clean energy transitions. It also promotes the exchange of best practices among countries to foster learning, build consensus and strengthen political will for a sustainable and affordable energy future.

S+3E
are long-standing principles of energy policy, providing stability and direction across all sectors


Japan is more electrified than other IEA countries, despite falling electricity consumption


Japan's policy action aims to unlock a larger share of its geothermal technical potential


LNG is a key pillar of Japan's energy system and a critical component for energy security (2025)

Natural gas supply (EJ)



Nuclear restarts are progressing to support 2040 ambitions

GW


21%
reduction of total final consumption (2010-2024); 3rd largest among IEA countries


Key legislation provides support for hydrogen along value chain links




Japan

Explore data on energy mix, emissions, electricity, efficiency and demand, renewables, oil, gas and coal.