Jann Weinand
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jannweinand.bsky.social
Jann Weinand
@jannweinand.bsky.social
energy system modeller | head of department at Jülich Systems Analysis (FZJ-ICE-2) https://www.fz-juelich.de/en/ice/ice-2/research-1/integrated-scenarios
If you’re into:
🌋 deep geothermal energy
🧮 energy system modeling
⚙️ sustainable material supply
…you might enjoy this deep dive!
October 26, 2025 at 10:36 AM
Huge thanks to an incredible international team — Max Kleinebrahm, Bernard Sanjuan, Evelina Trutnevyte, Karin Treyer, Francis Claret, Francesco Dalla Longa, Peter Burgherr, Bob van der Zwaan, Russell McKenna, and Detlef Stolten.
Working with you all was inspiring! 🙌
October 26, 2025 at 10:36 AM
We outline how innovations like:
• load-following enhanced geothermal systems (EGS),
• direct lithium extraction, and
• technological learning
…can make geothermal energy both clean and competitive worldwide. 🌍
October 26, 2025 at 10:36 AM
Highlights 👇
• Models often oversimplify exploration risks and drilling costs — by up to +420% at shallow depths!
• More than baseload — provision of dispatchable power in renewable-heavy grids.
• Geothermal brines can yield critical materials like lithium, helping the materials transition too. 🔋
October 26, 2025 at 10:36 AM
Geothermal energy is still a sleeping giant in the global clean energy mix.
Our review shows how it could become a major pillar of decarbonization — if we model it more accurately and recognize its full potential. ⚡🌱
October 26, 2025 at 10:36 AM
⚡️ Hybrid energy is key: Wind + solar (PV) systems are the most cost-effective power source for DAC, but PV is the backbone - making land availability for PV modules a crucial siting factor. 4/n
July 9, 2025 at 10:57 AM
🇩🇪 Germany as a case study: Expected CO₂ capture cost by 2045 range from 197 € to over 1000 € per ton of CO₂ - depending heavily on location and tech choice. 3/n
July 9, 2025 at 10:57 AM
🕑 Temporal resolution matters: We find variations in energy demand of more than 100% over the course of a year, emphasizing that accurately capturing fast-changing weather conditions is essential for reliable modeling of DAC energy use and productivity. 2/n
July 9, 2025 at 10:57 AM