JOGMEC held a “geothermal workshop” jointly with the International Energy Agency - Geothermal Technology Collaboration Program (hereinafter “IEA Geothermal”) at the PACIFICO Yokohama convention complex, Kanagawa Prefecture, on October 6, 2023, gathering geothermal experts from home 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 Japan through 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 from Europe, 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 and research 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 the note below for its URL).

The geothermal workshop was followed by a networking event between the speakers and participants 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 the development of geothermal resources by domestic companies and other parties concerned.

(Note)

• IEA Geothermal Workshop Presentations (Website of IEA Geothermal)

Speaker (affiliation)	Title, etc.
Jiri MULLER (Norway) (Institute for Energy Technology (IFE))	Opening Remarks (As the Leader of “Surface Technology Task Group,” IEA Geothermal)
Albert GENTER (France) (Electricité de Strasbourg)	Geothermal plants exploitation, environmental issues and Lithium extraction of very saline resources from the Upper Rhine graben
Yutaka KAWAGUCHI (Japan) (Toshiba Energy Systems & Solutions Co.)	TOSHIBA Geothermal Power Systems -Maximize the use of Geothermal Resources-
Hiroyuki ICHIKAWA (Japan) (Toshiba Energy Systems & Solutions Co.)	Technological development for advanced management of geothermal plant operation
Justine MOUCHOT (Germany) (Natürlich Insheim GmbH)	Geothermal Energy Production in the Upper Rhine Graben. A decade of operation at Insheim geothermal site. Lessons for the future
Norihiro FUKUDA (Japan) (Mitsubishi Heavy Industries, Ltd. (MHI))	The history of the development of geothermal power generation system and the pursuit of the possibility of overall management, including underground resources
Marco BARESI (Italy) (Turboden)	Turboden developments in the ORC and Large Heat Pump boosting the geothermal exploitation
Yoshinobu NAKAO (Japan) (Central Research Institute of Electric Power Industry (CRIEPI))	Development of IoT-AI tools for GPP
Luca XODO (Italy) (STEAM Srl)	Zero-emission geothermal plants and other environmental improvements of the geothermal developments
Yasuyuki HATTORI (Japan) (Fuji Electric, Co., Ltd.)	Geothermal Power Plants by Fuji Electric Construction experiences and applied technologies
Chris BROMLEY (New Zealand) (GNS Science)	Process steam generation -Geothermal steam reboiling technology
Kasumi YASUKAWA (Japan) (Japan Organization for Metals and Energy Security (JOGMEC))	Closing Remarks (As the chair of IEA Geothermal and as a JOGMEC member)