GEMINI – Open-Source digital twin for geothermal plant operations
In this webinar we discuss data-driven optimisation for a resilient geothermal energy system. In collaboration with: NWN! partners Helin, WEP, HVC and Gaia Energy.
- Startdatum:
- Time:
- 15:00 - (CET)
- Location:
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Join this session to explore how open-source digital twins can make geothermal energy systems more efficient, resilient, and scalable. Be part of a growing community driving digital innovation for the energy transition.
Accelerating geothermal innovation through digital twins
The transition to a sustainable and reliable energy system requires smarter use of geothermal resources. TNO and partners are developing GEMINI, an open-source digital twin framework designed to optimise the operation of geothermal plants.
Operation of geothermal plants are complex, data-intensive, and dynamic. Sub-optimal operation of geothermal energy systems can lead to a lower efficiency of geothermal energy production, frequent unplanned shut downs, and an increase in the operational expenditures and total cost of ownership.
The GEMINI digital twin enables operators and developers to monitor, model, and optimize geothermal wells and surface facilities in real time, by improving reliability, reducing operational risks, and supporting the transition toward sustainable and efficient energy production.
From data to performance: introducing the GEMINI Digital Twin
In this webinar, you will learn how GEMINI supports operators and developers in:
- Monitoring and predicting subsurface and surface behaviour in real time;
- Managing wells and surface facilities more efficiently;
- Detecting inefficiencies and potential failures before they occur;
- In this session, the project partners and technical experts will present the key achievements since the start of the project. They will introduce the digital twin’s architecture, its web-based interface, demonstrate the capabilities of the modules, and share their plans for building a collaborative community around geothermal digital twins.
Why digitalisation matters for the geothermal sector
Operating geothermal systems efficiently requires integrating complex data streams, from reservoir performance to surface equipment. Without advanced control, plants risk suboptimal output, higher costs, and unplanned shutdowns. The GEMINI digital twin tackles these challenges by combining data science, modelling, and automation, helping to:
- Improve the efficiency and reliability of geothermal energy production;
- Lower operational and maintenance costs;
- Support the Dutch and European goals for a future-proof, climate-neutral energy system.
Collaboration for impact
GEMINI is developed within the NWN! – Data-Driven Optimisation of Geothermal Energy Systems innovation project. This initiative strengthens collaboration between industry, research, and public partners, combining knowledge to accelerate innovation and enable the scaling of geothermal technologies.
The project also aims to build an open community for the exchange of digital twin tools and insights, supporting the broader energy transition.
Programme
Welcome & Overview of the NWN! GEMINI project
Speaker: Laura Precupanu (TNO)

GEMINI Digital Twin: Introduction and Key Considerations
Speaker: Pejman Shoeibi Omrani (TNO)

Architecture, Data Collection & Management
Speaker: Martijn Handels (Helin Data)

Well Integrity Management System (WIMS) in GEMINI
Speaker: Floris Degener (WEP)

Demonstration: GEMINI Digital Twin Toolbox
Speaker: Jonah Poort (TNO)

Q&A and Next Steps
All speakers
For professionals shaping the future of geothermal energy
This webinar is designed for:
- Geothermal operators
- Geothermal technology providers and software developers
- Research institutions
- Members of academia
- Policymakers and funding agencies
- Anyone interested in digital solutions for sustainable energy systems
- Learn, connect, and collaborate
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