To accelerate the heat transition in Germany the ArtemIS project focuses on the geothermal assessment of medium-depth reservoirs on a region-wide basis, covering all geological play types based on structural and numerical reservoir models. The results are incorporated into the GeotIS internet platform to create interactive “heat transition profiles”, which provide all necessary technical and subsurface data for each play type to perform preliminary geothermal assessment studies.

The world needs a shift from fossil fuels, and geothermal energy is a clean energy source. Aquifer thermal energy storage (ATES) system is an example of a shallow geothermal resource. This study estimates the porosity of the Permo-Triassic Sherwood Sandstone Group for ATES system using borehole nuclear magnetic resonance (BNMR) and Petrophysical models. This study confirms storage capacities in the lower Sherwood Sandstone Group of Northern Ireland that make it suitable for ATES systems.

This study investigates the challenges and improvements in teaching geology in Moroccan secondary schools. We propose solutions to enhance curriculum structure, teacher training, and the use of Information and Communication Technologies. By analyzing current programs, resources, and teaching methods, we highlight key areas for reform to improve students' understanding and interest in Earth sciences.

Salt weathering is influenced by factors such as salt type, concentration, moisture, temperature, and material properties. Environmental conditions and microbial activity can further impact this process. Experimental studies on bacteria in porous systems face challenges from environmental chemistry, detector components, and contamination. Adapting rules and procedures is essential for accurately assessing bacterial activities in salt-bearing porous systems.

The AGEMERA project (Agile Exploration and Geo-Modelling for European Critical Raw Materials) enhances EU critical raw materials exploration by integrating non-invasive methods such as ambient noise passive seismic, drone-based surveys, and muography. These technologies map bedrock properties and resource distribution effectively, feeding data into a comprehensive web-based repository for strategic analysis.

Understanding how the electricity generation sector reacts to climate change while large shares of wind and solar energies are introduced is of crucial importance to ensure a clean, secure and affordable electricity provision. We find that in a best case scenario, if we account only for climate change impacts on the wind and solar resource coupled to the demand, then climate change tends to have no adverse economic impacts, while it becomes more interesting to invest in solar than wind energy.

This study reveals new insights to the behaviour of subsurface water flow in fractured bedrock which has important implications for environmental safety of geological storage of spent nuclear fuel, carbon sequestration and other unwanted substances. It shows the relevance of accounting for small scale fracture heterogeneity in models to make accurate predictions on the transit times and pathways water flow takes through bedrock.

The Iceland Deep Drilling Project (IDDP) aims to investigate utilization of supercritical fluids. These fluids are considered to provide 10x more energy compared to conventional geothermal wells. During the IDDP-2 well stimulation, casing at about 2300 m depth was damaged and therefore the discharging fluid comes mainly from this depth instead of depths at higher temperature. The chemical composition of the discharge is, however, indicating minor contribution from the deeper depths.

Energy systems across the globe are evolving to meet climate mitigation targets. This requires rapid reductions in fossil fuel use and much more renewable generation. Renewable energy is dependent on the weather. A consequence of this is that there will be periods of low renewable energy production, driven by particular weather conditions. We look at the weather conditions during these periods and show the Indian energy sector could prepare for these events out to 14 days ahead.

We develop a simplified model which describes the geological geometry of the Vendenheim site, the solid and fluid properties were adapted from studies in the area. We implement compute the hydrothermal flow with a temperature dependent density and viscosity in a porous medium, in order to verify if a hydrothermal convective system is compatible with known observations at the Vendenheim site, and to get a better idea of the initial conditions of a model for an induced seismicity model. 

Concepts of High-Temperature Aquifer Thermal Energy Storage (HT-ATES) are investigated for system application in the German Molasse Basin. We quantify via physics-based numerical modelling the system performance with respect to HT-ATES concept development and provide a predictive analysis of HT-ATES application in the Upper Jurassic reservoir. Results demonstrate a non-uniform layer-specific distribution of the thermal front propagation, while promising heat recovery efficiencies are predicted.