Renewable Energy Institute has been publishing the “Renewable Electricity Procurement Guidebook” for corporate energy users in Japan since 2018 and revises it annually with the latest information as renewable electricity procurement options continue to change.
The 2025 edition explains the basics of renewable electricity and focuses on four types of procurement methods. “Self-generation” and “Corporate PPA” (on-site and off-site) are becoming popular as these methods contribute to climate change mitigation by adding new renewable electricity. “Renewable Energy Certificates” and “Green Products” are more convenient options procuring from the existing generation facilities with less additionality. The characteristics, examples and price trends of each option are presented. Key considerations and requirements for procuring renewable electricity are discussed in detail.
The English edition focuses on the main content of the guidebook “Renewable Electricity Procurement Methods” (Chapter 3 of the Japanese edition), providing a comprehensive and updated guide for global corporations operating business in Japan.
[Japanese Full Edition]
自然エネルギーの電力を増やす：企業・自治体向け 電力調達ガイドブック
<Table of Contents> (of the Japanese edition) *The English edition covers chapter 3 (marked in bold letters below)
Chapter 1. Objective and Background of the Guidebook
Chapter 2. Basics of Renewable Electricity
Chapter 3. Renewable Electricity Procurement Methods *
3-1. Self-generation, On-site PPA
3-2. Off-site PPA (Corporate PPA)
3-3. Renewable Energy Certificates
3-4. Green Products
3-5. Key Considerations in Procurement
3-6. Requirements for Renewable Electricity
Chapter 4. International Projects Promoting Renewable Energy
Chapter 5. Renewable Electricity Procurement outside Japan
