Based on facts, objective analysis as well as projections for the future, it focuses on the current energy and environment challenges and performs, from a neutral standpoint, ground-breaking analysis of those issues.
We understand the challenges and support our partners on their path toward Carbon Neutrality.
The 452nd Forum on Research Works will be held on December 19, 2025.
"IEEJ Outlook 2026", Deepening Uncertainties Surrounding the Challenges of Energy Transition: A Widening Gap Between the Ideal and the Reality, has been released.
It is often said that solar PV is the cheapest source of power. The conventional approach for cost calculation, Levelized Cost of Energy (LCOE), generally shows that solar PV is …
Tatsuya Terazawa Chairman and CEO
Global electricity demand for data centers was flat until 2019. It started to rise in part by the shift to working from home, which in turn has driven the growth in cloud service after the …
IEEJ, the Institute of Energy Economics, Japan, the energy think tank that I chair, has issued its annual global energy outlook on October 17. IEEJ’s outlook is forecast-based, in contrast to backcast-based projections such as …
Our Hot Topic Analysis
new 2025.12.04
Speaker: Dr. Leonardo Paoli, Clean energy technology analyst, IEAComment：Mr. Hiroshi Maeda, Director for Automotive Industry, METI Presentation materials for the 49th IEEJ Global Energy Webinar(2025.12.4)
new 2025.12.03
Author: Takashi Otsuki This study investigates the cost-optimal capacity and operation of water electrolyzers in global net-zero CO2 energy systems. The production costs of hydrogen are largely determined by the ...
new 2025.12.02
Author: Ken Koyama Over the past week, two events have emerged that could significantly shape the future trajectory of both domestic and international energy landscapes. Although entirely independent of one another, their implications and potential impact...
2025.11.28
Author: Hiroshi Hashimoto The global LNG market demonstrated significant momentum in new capacity development and long-term commercial commitment, particularly in North America, the Middle East, and the Asia Pacific. North America continued ...
Author: Kenichi Onishi Since the full liberalization of the electricity retail market in 2016, Japan’s electricity market has been transitioning toward a more efficient market structure based on competitive principles. Trading volumes in the spot market of the Japan Electric Power Exchange (JEPX) have...
2025.11.26
Author: Ichiro Kutani Shortly after taking office, U.S. President Trump declared his intention to withdraw from the Paris Agreement again. The U.S. government is promoting policies to advance fossil fuel development, while simultaneously repealing regulations and...
2025.11.19
Author: Hiroshi Hashimoto The Council of the European Union made announcements on 20 and 23 October, respectively, on measures to phase out and ban Russian LNG import into the EU. The first one (2.1 below) was on a draft regulation, and the ...
Author: Ken Koyama From November 12 to 14, I visited London and Washington, D.C., where I had the privilege of delivering presentations on the IEEJ Outlook 2026 (hereafter referred to as “the Outlook”) together with...
This episode is talking about “Energy Efficiency of AI & Energy Efficiency by AI”. How AI is driving up energy demand—especially in data centers—and how improving its...
AuthorIchiro Kutani
Diverging Perspectives on the Decarbonization Momentum
AuthorKen Koyama
The Recent Two Critical Developments: Approval of Kashiwazaki-Kariwa Nuclear Plant Restart and Outcomes of COP30
AuthorKenichi Onishi
Challenges in Introducing a Mandatory Quantitative Energy Supply Capacity (kWh) Requirement in Japan
SpeakerTatsuya Terazawa
Energy Efficiency of AI & Energy Efficiency by AI
Speakers：Akira Yanagisawa, Tetsuo Morikawa, Takafumi Yanagisawa, Yoshiaki Takahashi, Tohru Shimizu, Kenichi Onishi, Yasushi Ninomiya, Tatsuya Hagita, Kenji Kimura, Seonghee Kim, Tatsuya Terazawa (IEEJ) *Language: Japanese
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Speaker：Mr. Shinichi Kihara(METI) Moderator：Toshiyuki Sakamoto(IEEJ) *Language: Japanese
Speaker：Mr. Takahiko Tagami, Ms. Mai Kojima(IEEJ) Commentator：Prof. Jun Arima(GraSPP, Chief Sustainability Officer, JOGMEC) *Language: Japanese
Speaker：Tadanori Sasaki (IEEJ) Moderator: Ichiro Kutani (IEEJ) *Language: Japanese
2025.11.13
2025.11.06
2025.08.07
2025.06.16
2025.06.12
2025.06.04
2025.05.21
2025.04.10
Our Flagship Symposiums & Outlook Reports
APERC and IEEJ will offer viewpoints on tackling the challenges described above under multiple pathways to carbon neutrality goal through discussions among prominent experts from various nationalities and backgrounds regarding the following topics: - Examining the gap between ideals and reality from various perspectives - Strategies to bridge the gap between ideals and reality - Innovations and measures to overcome the gap between ideals and reality
Reports from our professionals
2025.10.27
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