Hot Dry Rocks Pty Ltd (HDR) is Australia’s foremost geothermal energy exploration and development consultancy. HDR specialises in locating and characterising geothermal resources suitable to exploit for power generation or direct use and maintains an enviable reputation for quality and personalised service. We have worked on scores of projects in sedimentary basin geothermal systems, hot rock geothermal systems and conventional geothermal systems.

HDR also supports an internal research and development program, delivering state-of-the-art tools and software for the geothermal sector. For example, HDR developed an electronic divided bar tool for rock thermal conductivity measurement—the first portable instrument of its type in the world—and operates the only commercial laboratory for rock thermal property measurement in Australia.

Through its in-house expertise and strategic partnerships, HDR offers a full range of services and advice from initial ground selection, exploration and resource characterisation; through drilling, reservoir stimulation and appraisal; to economic modelling and full-scale development.

Technical Director of HDR is Dr Graeme Beardsmore. Dr Beardsmore is a Director of the Australian Geothermal Association, Secretary of the Asia Pacific Regional Branch of the International Geothermal Association, Australia's industry representative to the International Partnership for Geothermal Technology, and a Senior Fellow at the University of Melbourne. He has over 25 years' experience in geothermal energy exploration.