German geothermal developer ZeroGeo Energy GmbH (ZeroGeo) has announced a farmout of equity in its subsidiary, Geothermie Rupertiwinkel GmbH (GTR). Through this subsidiary, the company is developing the Ruperti II geothermal permit area in southeast Bavaria, Germany, where a geothermal resource with measured reservoir temperature of 150 °C has already been proven.
Indicative bids for the investment opportunity should be received not later than 4 June 2026. Upon signing of an NDA, interested parties will be given access to a secure Virtual Data Room.
The announcement pertains to an opportunity to acquire equity interest in Geothermie Rupertiwinkel, which had recently been acquired by ZeroGeo Energy. Several assets were transferred along with this acquisition, including:
- The 91-km2 geothermal permit valid until July 2027, with provision for extension subject to development approval
- Permit-wide high-quality 3D seismic survey
- A 5000-m2 drilling pad with three unused drill cellars completed with 20″ conductors to 100 meters
- Cased borehole to over 6000 mMD that can be repurposed for geothermal production or injection
The drilling pad is adjacent to the Kirchanschöring district heating network and industrial park which has a growing baseload heat demand. Moreover, the permit lies within the regional heat network that can deliver geothermal heat to the Chiemgau-Rupertiwinkel region. Long-term heat offtake agreements are under negotiation.
The developer has already indicated plans of developing a “Green Energy Hub,” which will consist of a geothermal heating and cooling plant, a 10-MWe Battery Energy Storage System, and a geothermal power project. The project is eligible for German federal funding under the Efficient Heat Networks and Geothermal Exploration Initiative. Geothermie Rupertiwinkel had recently signed an LOI with Danish company Green Therma to explore the possibility of deploying a closed-loop geothermal solution at the development site.
Source: Geothermie Rupertiwinkel
