Vulcan Energy has formalized a strategic alliance with Siemens, positioning the industrial giant as both a technology provider and investor ahead of a planned commercial lithium rollout in Germany’s Upper Rhine Valley by 2028.
The agreement anchors Vulcan’s transition from pilot-scale validation to full industrial deployment. Siemens will support financing while taking a central role in supplying automation and digital systems across upcoming facilities. The structure also locks in Siemens as a preferred vendor for future expansions through 2035, extending beyond the initial Lionheart development.
Financing Structure and Industrial Scope
Under a framework tied to the Lionheart project, Siemens Financial Services will join an investor group that includes Hochtief and Demeter Investment Managers as a minority stakeholder. The arrangement reinforces an already substantial capital base assembled to fund Europe’s most advanced geothermal lithium initiative.
The companies also signed a letter of intent that defines long-term procurement alignment. An accompanying statement also notes: “Vulcan’s preference for Siemens will extend beyond Lionheart to include future phases of development.”
This dual-track structure capital plus technology signals a shift toward vertically integrated lithium infrastructure in Europe, where supply chain resilience has become a strategic priority.
Europe’s Largest Geothermal Lithium Resource
Vulcan’s Lionheart project targets lithium extraction from geothermal brine reservoirs across the Upper Rhine Valley. The company operates within what it describes as Europe’s largest combined geothermal and lithium resource base, with production designed to align with regional decarbonization goals.
A definitive feasibility study released in 2023 outlined annual output of 24,000 tonnes of lithium hydroxide monohydrate (LHM). The company has maintained that target, supported by a €2.2 billion financing package. According to Vulcan, this volume should be sufficient to produce ‘ca. 500,000 electric vehicle batteries per annum’.
The production chain spans extraction in Landau and downstream processing in Frankfurt-Höchst. Vulcan has already commissioned pilot facilities at both sites, operating as scaled models to de-risk full commercial construction.
Authorities granted building permits in late 2025, and government confirmation followed shortly after. Construction is now underway, with commercial output targeted roughly two and a half years from initial groundworks.
Offtake Secured Across Battery Ecosystem
Vulcan has locked in long-term demand through binding supply agreements with major battery and automotive players, including Umicore, LG Energy Solution, Stellantis, and Glencore.
LG Energy Solution is set to receive 31,000 tonnes of LHM over six years. Umicore has secured 23,000 tonnes over the same period, while Stellantis is guaranteed 128,000 tonnes over ten years. Glencore will receive between 36,000 and 44,000 tonnes across eight years. These contracts effectively pre-allocate output from the first production phase, reducing commercial risk as the project scales.
Siemens Technology Stack Integration
The partnership centers on industrial digitization and automation. Siemens outlined its role as delivering a full-stack solution: “It will provide comprehensive automation and digitalization capabilities by delivering end-to-end project solutions from the Siemens Xcelerator portfolio – including advanced instrumentation, distributed control systems, digital twin technology, industrial network, IT security and analytics that will enable integrated operations from resource extraction to final production. The agreement will also provide smart infrastructure solutions from across Siemens’ buildings portfolio,” Siemens stated.
This integrated architecture aims to compress commissioning timelines while improving operational visibility across extraction, processing, and infrastructure layers.
Capital Expansion and Strategic Backing
Siemens’ involvement extends beyond engineering into project financing. Its financial services division will participate directly as an investor, alongside additional support from the Danish Export and Investment Fund.
Earlier disclosures tied to the broader €2.2 billion financing package referenced a €133-million investment “from a consortium of strategic investors, including Siemens, Demeter, and Hochtief, to acquire a 15% preferred equity stake in the project company VER GEO LIO GmbH (the project company for Vulcan’s Phase One),” as stated in the original announcement.
Executive Perspective and Strategic Implications
Roland Busch, CEO of Siemens AG, emphasised: “As both a strategic investor and a key technology partner, we are helping Vulcan Energy establish Europe’s first major sustainable source of lithium. With our technology from advanced automation and digitalization to smart building solutions, we help to ramp-up production faster. This is essential to create a local lithium supply for our energy transition and a more competitive, resilient and sustainable European industry. It is a powerful example of strengthening growth and competitiveness in line with the Made for Germany initiative.”
“The agreement reflects the growing strength of our partnership with Siemens and reinforces our confidence in delivering the objectives of Vulcan’s Lionheart Project. This partnership is an important step in unlocking future opportunities for growth, as we progress toward our goal of decarbonizing Europe’s battery supply chain,” added Cris Moreno, Managing Director and CEO of Vulcan.
However, the alliance also underscores a broader industrial recalibration. Europe is moving to localize critical minerals supply, aligning energy, infrastructure, and manufacturing systems into a cohesive value chain.
