MineWaterHeat LowCarbonHeat EnergyTransition CleanEnergy

UK mine water heat Living Lab attracts global research interest at one-year milestone

*Old mines are emerging as a viable low-carbon heat source in the UK. Source: Home Building*

One year after its launch, the UK’s first mine water heat Living Laboratory in Gateshead is attracting growing international interest, with researchers from Europe and the United States engaging with the project to explore how real-world subsurface data can accelerate low-carbon heating solutions.

Led by the Mining Remediation Authority, the open-access Living Lab monitors interactions between three operational mine water heat schemes in the North East of England, including the Gateshead Energy Company network and a privately funded installation serving industrial facilities nearby. Together, these systems provide a rare opportunity to study operational mine water heat infrastructure at scale.

Mine water heat system schematic: Warm mine water (10–25 °C) is extracted via boreholes, upgraded by heat pumps to 45–70 °C for building heating, then reinjected into the mine system to recharge. Source: UKGEOS (image by UKRI)

Over its first year, the Living Lab has generated thousands of hours of thermal, hydrological, geophysical and fibre-optic sensing data. This has rapidly established the site as a valuable resource for scientists, engineers, policymakers and energy developers seeking to understand how flooded mine workings can be reliably harnessed for heating.

Among the international collaborators are researchers from Lawrence Berkeley National Laboratory in the United States and Fraunhofer IEG in Germany, who are using the dataset to compare mine water behaviour across different geological and operational settings. Their work focuses on system efficiency, seasonal thermal dynamics and long-term stability, all critical factors for wider deployment.

The project has also supported undergraduate, MSc and PhD research across several UK universities, while contributing to funding proposals exploring geothermal energy, environmental monitoring and artificial intelligence applications.

With millions of UK homes located above former coalfields, the Gateshead Living Lab is increasingly seen as a practical blueprint for scaling mine water heat as a dependable, low-carbon energy source, bridging the gap between research and real-world delivery.