Driving innovation in geothermal solutions 

Both projects are underway in southern Germany and will run for 3–4 years as Public Private Partnerships (PPPs). The first project focuses on developing a product or water-lubricated line-shaft pump for deep geothermal systems. To this end, Sulzer collaborates with the Karlsruhe Institute of Technology (KIT) with the objective of ensuring safe geothermal production processes. The second project, in partnership with Geopfalz and TU Bergakademie Freiberg, aims to create a closed lubrication circuit to prevent oil leakage, reducing environmental risk and maintenance costs. 

Global impact through proven expertise 

Sulzer’s geothermal technologies are already powering national-scale operations in Turkey, the United States and Indonesia. Its VS6 pumps play a critical role in Organic Rankine Cycle (ORC) geothermal plants, which require precision fluid handling. With a reputation for delivering high-efficiency solutions under tight timelines, Sulzer combines engineering excellence with long-term service agreements and global infrastructure.  

"This funding empowers us to pioneer technologies that safeguard natural resources and drive the clean energy transition,” said Arrigo Beretta, Head of Product Development at Sulzer. “We’re proud to contribute engineering solutions that make geothermal production safer, more efficient and more sustainable.”