Community Research and Development Information Service - CORDIS


A cost model has been developed for HDR (hot dry rock) systems of producing electricity, based on the UK Department of Energy geothermal R & D programme. The results suggest a figure of 14.2 p/kWh might be achieved in the ignition; this is unacceptably high. Studies of the main resource, geometric and operational parameters are reported. The most cost-effective HDR arrangement in terms of optimised volumes and flow rates has been investigated for a worldwide range of thermal settings. The main conclusions from this study suggest that, for HDR electricity to be economic, thermal gradients of 55 C/km and above, well depths of 5 km or less, and production fluid temperatures of 210 C and above are required.

Additional information

Authors: DOHERTY P, University of Sunderland (GB);HARRISON R, University of Sunderland (GB)
Bibliographic Reference: EUR 15388 EN (1995) 420 pp., FS, ECU 46.50
Availability: (2)
ISBN: ISBN 92-826-9582-4
Record Number: 199510821 / Last updated on: 1995-07-28
Original language: en
Available languages: en