Renewable Energy Institute

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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

[Special Contents] Pathways to Climate-neutral Japan

The 2030, 2035, 2040 and 2050 Energy Mix

Decarbonization in Steel, Cement & Buildings

Climate Change Accelerating Decarbonization Towards the 1.5°C Target

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

Latest News

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Reports & Proposals

4 December 2025

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

6 November 2025

Progress of China and India in Switching from Coal to Renewables

16 October 2025

The Decarbonization Pathway for Japan’s Cement Industry: Take Urgent Actions to Align with the 1.5℃ Target

Unlocking the Potential of Grid-Scale Battery Storage: Current Status and Challenges

Revitalizing Agriculture with Solar Sharing: Agri-PV Contributing to Local Prosperity

[Information-Package] Corporate PPA: Latest Trends in Japan (2025 Edition)

17 February 2025

The EU Competitiveness Compass: A Roadmap for Decarbonization and Growth Implications for Japan’s GX Strategy

31 January 2025

Renewable Electricity Procurement Guidebook (2025 Edition)

25 December 2024

REI Energy Transition Scenario Through Renewable Energy: Prospects Toward 2040 (Revised 1st Edition)

19 December 2024

[Research Paper] Regional Economic Analysis of Bottom-fixed Offshore Wind Power

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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

8 December 2025

Notice of Office Closure for the New Year Holidays

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