Renewable Energy Institute

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Reports & Recommendations

Middle East Crisis Highlights Japan’s Energy Risk Now Is the Time to Accelerate the Transition from Fossil Fuels

Strengthening energy self-sufficiency through renewables, efficiency, and electrification

Solar Power

Revitalizing Agriculture with Solar Sharing, Powering Roofs and Balconies

Trends in SBTi, RE100, and the GHG Protocol

The Current Status of Global Standards for Corporate Climate Action

Special Contents Offshore Wind Power in Japan, too.

Accelerating RE procurement

Key Trends, RE100 & Case Studies

Pathways to Climate-neutral Japan

The 2030, 2035, 2040 and 2050 Energy Mix

Decarbonization in Steel, Cement & Buildings

Accelerating Decarbonization Towards the 1.5°C Target

Policies and Action in Japan/World, Decarbonization by Sector, Power & Fuel Transitions

Latest News

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Reports & Recommendations

Energy Security Benefits of Accelerated Energy Transition: In the Context of the 2026 Strait of Hormuz Closure Crisis

Grid-Scale Battery Storage in Japan: Policy Recommendations for Scaling the Market

[Joint Study] Japan Fixed-Bottom Offshore Wind Cost Drivers and the 2040 Outlook

Middle East Crisis Highlights Japan’s Energy Risk: Now Is the Time to Accelerate the Transition from Fossil Fuels

Plug-in PV: How Germany Made Solar Accessible to All

Recommendations for the Future of Ports, Key to Expanding Offshore Wind Power

Corporate PPA: Latest Trends in Japan (2026 Edition)

21 January 2026

Renewable Electricity Procurement Guidebook (2026 Edition)

15 December 2025

Green Iron Trade: Unlocking Opportunities for Japan [Joint Study with Agora Industry]

4 December 2025

Germany’s Power Sector Status and Policy Directions: Decarbonization and Energy Security

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Joint Initiatives for
the Turnaround of Energy Policies

Renewable Energy Users Network

Expanding the use of renewable energy promoted with companies and communities.

Japan Climate Initiative

Network organization working with non-state actors to achieve a carbon-free society.

About Us

Renewable Energy Institute helps to solve challenges through conducting studies and research into electricity systems, renewable energy policy programs, and market environments, among others. We release our findings in the form of reports, symposiums, and lectures.

Information

27 April 2026

Notice of Office Closure (national holiday: 29 April / 4-6 May 2026)