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Germany, Indonesia, exploration, geothermal technology implementation, binary, small-scale power plant, remote
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Abstract:
In 2010 cooperation between Germany and Indonesia has been initiated in the field of sustainable geothermal energy development.
Within this German project “Sustainability concepts for exploitation of geothermal reservoirs in Indonesia – capacity building and
methodologies for site deployment” several research activities have been carried out which were closely accompanied by capacity
building measures, such as a PhD-program in Germany with focus on Indonesian topics. Research activities and knowledge transfer
were carried out bidirectional in order to strengthen science and technology for both, Indonesian and German partners.
In the field of exploration, low enthalpy geothermal green fields in magmatic (East Java) and amagmatic settings (North Sumatra)
have been investigated. Also analyses on the controlling mechanisms of operated geothermal fields in North Sulawesi and West
Java have been carried out. Regarding sustainable exploitation, we report on the integrated geoscientific monitoring networks that
were established and on solutions developed for on-line fluid-chemical monitoring in operating geothermal plants. In the field of
plant technology, the technical concept for a demonstration binary power plant as bottoming unit at an existing site has been
elaborated and the construction of the demonstration binary power plant for Lahendong is ongoing.
In this paper, we are reporting on the objectives, status, progress and achievements of the scientific investigations. We suggest that
the project findings can be applied to other locations in Indonesia and that they can be used for further developments. The
realization of the demonstration binary power plant is carried out in another collaboration project which could be the basis for a
more widespread deployment of binary power plants and for a decentralized use of geothermal energy in Indonesia.
