2f98f2ff-2ee6-37b7-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 2026-04-05 UK GEMINI 2.3 http://data.bgs.ac.uk/id/dataHolding/13608367 OSGB 1936 / British National Grid (EPSG::27700) Legacy BGS geothermal models: theoretical potential 'recoverable heat' for the Upper Devonian in hot sedimentary aquifers in the Midland Valley of Scotland 2024 publication http://data.bgs.ac.uk/id/dataHolding/13608367 This raster dataset shows the modelled P50 distribution of the theoretical potential 'heat recoverable' (Hrec) for the combined Upper Devonian Stratheden Group and Kinnesswood Formation across the Midland Valley of Scotland, at a resolution of 500 m x 500 m. Hrec is calculated for resource temperatures greater than 50 °C, which represents minimum temperature required for direct use of heat from hot sedimentary aquifer resources. Hrec represents the proportion of accessible heat 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. Areas of high uncertainty are delineated in the published paper and the theoretical potential of the recoverable heat is presented with very 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-2ee6-37b7-e063-0937940a4ed0.png Geology GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Devonian Geothermal energy Heat recovery Aquifers Geothermal maps Sandstone reservoirs 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 'recoverable heat' (Hrec) in the Upper Devonian formations in the Midland Valley of Scotland was calculated as part of a first regional-scale estimate 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 of depth and thickness. The theoretical potential 'recoverable heat' (Hrec) provides an estimate of the fraction of the 'heat-in-place' (HIP) that can be produced as thermal power (in kilowatts). It was calculated using the 3DHIP tool (Piris et al., 2021), which is based on the USGS volumetric HIP method developed by Muffler and Cataldi (1978). The values are theoretical due to lack of operational data for the UK. The method uses a Monte Carlo simulation to calculate the P50 probability distribution function for the Hrec based on the P50 distribution of the HIP derived from the 3D geological model, gridded at an XYZ spatial resolution of 500 x 500 x 50 m. Hrec was calculated assuming a recovery factor (R) of 0.1, a plant factor (Pf) of 0.95 (proportion of time a plant is likely to be operating), a geothermal project lifetime (Tlive) of 30 years, and a heat exchanger conversion factor of 0.85. The recoverable heat highly depends on the thickness of the aquifer, which is poorly constrained in some areas. Recovering the heat from the whole thickness of the aquifer is not likely to be technically possible, so these values are high, theoretical estimates.