November 13, 2023

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Report on “Surface Geothermal Technology Workshop”
Co-hosted with IEA Geothermal
Japan Organization for Metals and Energy Security (JOGMEC) organized a “geothermal workshop”
on ground equipment technology for geothermal plants on October 6, 2023, jointly with the IEA
Geothermal, gathering geothermal experts from Japan and overseas.
JOGMEC held a “geothermal workshop” jointly with the International Energy Agency - GeothermalTechnology Collaboration Program (hereinafter “IEA Geothermal”) at the PACIFICO Yokohama
convention complex, Kanagawa Prefecture, on October 6, 2023, gathering geothermal experts fromhome and abroad. The workshop, timed with an Executive Committee meeting of IEA Geothermal
held from October 3 to 5, is designed to promote the use of geothermal energy in and outside Japanthrough international technology exchanges on geothermal use. JOGMEC has been representing
Japan at IEA Geothermal since 2013.

At the workshop, the geothermal specialists from Japan and foreign countries, especially fromEurope, made nine presentations along with a theme, “Maximizing Heat and Electricity, Minimizing
Environmental Impact,” regarding the latest trends of technology for surface geothermal equipment.
The presentations included the introduction of technological development and case studies at actual
plants for maximizing power generation and heat supply while minimizing the environmental impact.

The workshop saw a total of 58 participants from various industries and business lines (43 attendees
from within Japan and 15 from overseas), including energy development-related companies andresearch institutes. After each presentation, there were lively question and answer sessions between
the speakers and participants. Reference materials are posted at IEA Geothermal website (see thenote below for its URL).
The geothermal workshop was followed by a networking event between the speakers andparticipants aimed at exchanging knowledge and building relationships, bringing the event to a
successful conclusion.
JOGMEC will continue to provide useful information, through seminars, workshops, etc., for thedevelopment of geothermal resources by domestic companies and other parties concerned.
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(Note) IEA Geothermal Workshop Presentations (Website of IEA Geothermal)(URL) https://iea-gia.org/workshop-presentations/■ Program

Speaker (affiliation)

Title, etc.

Jiri MULLER (Norway)

Opening Remarks(Institute for Energy Technology (IFE))(As the Leader of “Surface Technology Task
Group,” IEA Geothermal)

Albert GENTER (France)

Geothermal plants exploitation, environmental(Electricité de Strasbourg)

issues and Lithium extraction of very saline
resources from the Upper Rhine graben

Yutaka KAWAGUCHI (Japan)

TOSHIBA Geothermal Power Systems -Maximize(Toshiba Energy Systems & Solutions Co.)the use of Geothermal Resources-Hiroyuki ICHIKAWA (Japan)

Technological development for advanced(Toshiba Energy Systems & Solutions Co.)

management of geothermal plant operation

Justine MOUCHOT (Germany)

Geothermal Energy Production in the Upper Rhine(Natürlich Insheim GmbH)

Graben. A decade of operation at Insheim
geothermal site. Lessons for the future

Norihiro FUKUDA (Japan)

The history of the development of geothermal(Mitsubishi Heavy Industries, Ltd. (MHI))

power generation system and the pursuit of thepossibility of overall management, includingunderground resources

Marco BARESI (Italy)

Turboden developments in the ORC and Large(Turboden)

Heat Pump boosting the geothermal exploitation

Yoshinobu NAKAO (Japan)

Development of IoT-AI tools for GPP(Central Research Institute of ElectricPower Industry (CRIEPI))
Luca XODO (Italy)

Zero-emission geothermal plants and other(STEAM Srl)

environmental improvements of the geothermaldevelopments

Yasuyuki HATTORI (Japan)

Geothermal Power Plants by Fuji Electric(Fuji Electric, Co., Ltd.)

Construction experiences and applied technologies

Chris BROMLEY (New Zealand)

Process steam generation -Geothermal steam(GNS Science)

reboiling technology

Kasumi YASUKAWA (Japan)

Closing Remarks(Japan Organization for Metals and(As the chair of IEA Geothermal and as a JOGMEC

Energy Security (JOGMEC))

member)2

■Selected scenes from the workshop

Presentation by Dr. Justine MOUCHOT

Audience of the workshop

A scene from Q&A session

Dr. Kasumi YASUKAWA, IEA Geothermal Chair■Reference
Set to assume the first IEA Geothermal chair as a Japanese national (December 22, 2021) (Available
only in Japanese)(URL) https://www.jogmec.go.jp/news/release/news_15_00006.html

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