ご覧のページは旧ウェブサイトのアーカイブです。
最新の情報は新しいIGESのウェブサイト (https://www.iges.or.jp/jp)をご覧ください。

You are viewing an archive, visit the current website for the latest information.
Experts review meeting

The preliminary results of the Japan 2050 Pathways Calculator developed by IGES and NIES

 Japan 2050 Pathways Calculator

Following up on the development of the Japan 2050 Pathways Calculator, the Institute for Global Environmental Strategies (IGES) and the National Institute for Environmental Studies (NIES) organised an expert review meeting with relevant stakeholders to share and discuss the preliminary results of the Calculator. The meeting, which took place on 20 February at the Kokukaikan Conference Hall in Tokyo, was attended by representatives from Japan’s Climate Network, Ministry of the Environment, Tokyo Metropolitan Government, Research Institute for Systems Technology, Institute of Energy Economics, British Embassy Tokyo, Institute of Applied Energy, and Mizuho Information & Research Institute.

Date 20 February 2014, 13:00 – 17:00
Venue Kokukaikan Conference Hall Tokyo
Organisers Institute for Global Environmental Strategies (IGES)
National Institute for Environmental Studies (NIES)
Language English/Japanese
Agenda PDF(30KB)
List of Participants PDF(47KB)
Background

Back in 2010, the UK Department of Energy and Climate Change (DECC) published the first version of the Calculator for the UK, which received a very positive response from the audience. It is a user-friendly model that lets the users create their own emissions reduction pathways, and see the impact using real scientific data. Several other countries, such as China, Republic of Korea, Wallonia/Belgium, Taiwan and India followed suit and developed the Calculator for their respective countries. In the post-Fukushima era, a 2050 Pathways Calculator for Japan is likely to be very effective in delivering the fundamentals of energy mix and mitigation options for Japan to get wider public access and receive feedback simultaneously. Against this backdrop, since May 2013, IGES and NIES have been working with the DECC and the British Embassy Tokyo to develop the Japan 2050 Pathways Calculator. In 2013, the DECC officials trained the Japan 2050 Calculator team members in Tokyo, and also two team members visited DECC to receive further capacity building training.

In January 2014, IGES and NIES developed the beta version of the Japan 2050 Pathways Calculator. As a handy scenario simulation tool with good visualisation, transparent data and easy operation, the Calculator has been developed in a timely manner to help domestic discussions on new energy policies after the Fukushima disaster. Recently Japan announced its revised 2020 mitigation target of 3.8% reductions based on 2005 levels, which received a strong response from the international community. The Calculator can help review Japan’s long-term mitigation target of 80% by 2050 and assist policy-making to achieve the target. Moreover, it can help engage cross-sectoral communication and public participation.

Objectives

The objective of the review meeting was to receive feedback from the experts and relevant institutes, and to ensure that stakeholders’ opinions are duly reflected in the Calculator. A particular focus of the meeting was to discuss the design of the pathways and trajectories for Japan up to 2050, and the future application of the Calculator. The participants expressed their views in a very engaging and frank manner.

Session Summary

Professor Shuzo Nishioka and Mr. Takashi Otsuka from IGES provided the opening remarks where they explained the purpose of the meeting and sought cooperation from the experts. Dr. Xin Zhou from IGES provided an overview of the Japan 2050 Calculator, including the background of the initiative as well as the progress and next steps. Dr. Shuichi Ashina from NIES presented the overall structure of the Calculator, in particular the selection of the sectors in accordance with Japan’s energy, economic and social realities. This was followed by sectoral presentations by Dr. Xin Zhou, Dr. Takeshi Kuramochi and Dr. Mustafa Moinuddin from IGES. Some of the selected priority sectors were presented thoroughly to the audience to explain how the pathways have been designed, what the data sources are, what the preliminary results suggest, and where there are limitations of the analyses. The floor was kept open for the experts to intervene with questions and comments to ensure effective discussion. Professor Shuzo Nishoka facilitated the expert meeting.

The experts provided some very important feedback and opinions. Of particular interest was the issue of Japan’s nuclear options in the aftermath of the Fukushima disaster. Detailed discussions took place and it was suggested that instead of following the examples from other countries, it would be better to take a realistic approach in designing the pathways taking into consideration Japan’s current nuclear situation. The experts also expressed their optimism about Japan’s renewables potential in solar and wind sub-sectors. Discussions centered on the possibility of a 100% renewable energy scenario and it was advised to seek reference scenarios from WWF or Greenpeace. For industry and transport sectors, there were suggestions to further consult some of the parameters with sector experts. Overall, the experts were convinced that the Calculator can be a useful tool for discussing Japan’s long-term energy and climate policies. They also held that the quality of the Calculator can be further improved through continuing discussions with stakeholders and sector specialists.

The Japan 2050 Calculator team has taken into consideration all the feedback and comments received from the experts and these inputs are being duly incorporated in the current version of the Calculator. It is planned that IGES and NIES will publicly launch the Calculator within this year.

Go to top of page