2f98f2ff-2ee5-37b7-e063-0937940a4ed0 English dataset British Geological Survey +44 131 667 1000 The Lyell Centre, Research Avenue South EDINBURGH LOTHIAN EH14 4AP United Kingdom enquiries@bgs.ac.uk pointOfContact 2026-04-16 UK GEMINI 2.3 http://data.bgs.ac.uk/id/dataHolding/13608366 OSGB 1936 / British National Grid (EPSG::27700) Legacy BGS geothermal models: theoretical potential 'heat-in-place' for the Upper Devonian in hot sedimentary aquifers in the Midland Valley of Scotland 2024 publication http://data.bgs.ac.uk/id/dataHolding/13608366 This raster dataset shows the modelled P50 distribution of the theoretical potential 'heat-in-place' (HIP) across the combined Upper Devonian Kinnesswood Formation and Stratheden Group in the Midland Valley of Scotland (PJ/km2), at a resolution of 500 m x 500 m x 50 m. The HIP is calculated for resource temperatures greater than 50 °C (> 1400 m depth), which represents minimum temperature required for direct use of heat from hot sedimentary aquifer resources. The HIP represents the heat resource available in an aquifer according to the USGS definition described in e.g. Muffler and Cataldi (1978). Its calculation is part of the research published by Kearsey, T.I., Receveur, M. and Monaghan, A.A., 2024. Modelled hot sedimentary aquifer geothermal potential of Upper Devonian strata in the Midland Valley of Scotland. The model is presented with high uncertainty. Enquiries British Geological Survey 0115 936 3142 0115 936 3276 The Lyell Centre, Research Avenue South EDINBURGH LOTHIAN EH14 4AP United Kingdom enquiries@bgs.ac.uk distributor Enquiries British Geological Survey 0115 936 3142 0115 936 3276 The Lyell Centre, Research Avenue South EDINBURGH LOTHIAN EH14 4AP United Kingdom enquiries@bgs.ac.uk pointOfContact notPlanned https://resources.bgs.ac.uk/images/geonetworkThumbs/2f98f2ff-2ee5-37b7-e063-0937940a4ed0.png Geology GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Geothermal energy Sandstone reservoirs Geothermal maps Aquifers Devonian BGS Thesaurus of Geosciences 2022 revision UK Location (INSPIRE) dataCentre NERC_DDC otherRestrictions no limitations The dataset is made freely available for access, e.g. via the Internet. Either no third party data / information is contained in the dataset or BGS has secured written permission from the owner(s) of any third party data / information contained in the dataset to make the dataset freely accessible. otherRestrictions The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused. Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]" The dataset is made available to external clients under BGS Digital Data Licence terms and conditions. Revert to the IPR Section (iprdigital@bgs.ac.uk) if further advice is required with regard to permitted usage. grid 500 English geoscientificInformation British Geological Survey Gazetteer: Geographical hierarchy from Geosaurus 1979 creation CENTRAL REGION (SCOTLAND) [id=147300] British Geological Survey Gazetteer: Geological gazetteer 2005 creation Midland Valley Basin [id=1000334] -4.8286 -2.4842 55.5349 56.3741 2024 2025 Enquiries British Geological Survey 0115 936 3142 0115 936 3276 The Lyell Centre, Research Avenue South EDINBURGH LOTHIAN EH14 4AP United Kingdom enquiries@bgs.ac.uk distributor https://ukgtp.bgs.ac.uk WWW:LINK-1.0-http--link UK Geothermal Platform Web Map An interactive Web map for exploring geothermal energy potential, assessing constraints, and making informed exploration decisions. information https://ukgeothermalplatform.org WWW:LINK-1.0-http--link UK Geothermal Platform An online platform for exploring geothermal energy potential, assessing constraints, and making informed exploration decisions. information dataset dataset INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology 2011 publication See the referenced specification false Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 publication See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF false The theoretical potential 'heat-in-place' (HIP) in the Upper Devonian formations of the Midland Valley of Scotland was calculated as part of a first regional-scale assessment of the deep geothermal potential of hot sedimentary aquifers in Scotland. The study considers the Kinnesswood Formation and Stratheden Group as the main target units, and includes the construction of an updated 3D geological model. The HIP was calculated for resource temperatures greater than 50 °C (minimum temperature required for direct-use applications of geothermal energy) using the 3DHIP tool (Piris et al., 2021). The tool is based on the USGS volumetric HIP method developed by Muffler and Cataldi (1978). It uses a Monte Carlo simulation to calculate the P50 probability distribution function for the HIP based on the P50 distribution of the reservoir volume, derived from the updated 3D geological model (depth and thickness of the Kinneswood Formation and Stratheden Group), gridded at an XYZ spatial resolution of 500 x 500 x 50 m, and the temperature distribution. Constant values for the mean reservoir porosity (11.4%), fluid density (1040 kg/m3), rock density (2495 kg/m3), fluid specific heat capacity (3.8 kJ/kg°C) and rock specific heat capacity (0.943 kJ/kg°C) was attributed to the reservoir based on an analysis of various studies and available borehole data. The average temperature gradient of 26.6 °C/km calculated from available equilibrium and/or deep temperature data was used to map the temperature distribution within the reservoir, assuming a surface temperature of 8 °C. An upper depth cut-off of 1400 m, which corresponds to a reservoir temperature of c. 50 °C, was used to calculate the theoretical geothermal resources available for direct use only, assuming a reference (i.e. reinjection) temperature of 25 °C.