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David Bridgland – Finance Director UNITED DOWNS DEEP GEOTHERMAL PROJECT

David Bridgland – Finance Director UNITED DOWNS DEEP GEOTHERMAL PROJECT. 17 th November 2011. OVERVIEW. Background Proposition Why the United Downs? Progress Summary. Geothermal Engineering Ltd. WHO ARE WE?. Geothermal Engineering Ltd.

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David Bridgland – Finance Director UNITED DOWNS DEEP GEOTHERMAL PROJECT

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  1. David Bridgland – Finance Director UNITED DOWNS DEEP GEOTHERMAL PROJECT 17th November 2011

  2. OVERVIEW • Background • Proposition • Why the United Downs? • Progress • Summary Geothermal Engineering Ltd

  3. WHO ARE WE? Geothermal Engineering Ltd • Ove Arup and Partners Ltd. International engineering consulting firm (1946). Over 90 offices Worldwide with more than 10,000 employees • GeoScience Ltd (Tony Batchelor). Providers of engineering and scientific support to geothermal and oil and gas projects Worldwide

  4. UNITED DOWNS PROJECT • MAIN FEATURES • 10 MW electric (7MW net) ~ 50 MW thermal • Production ~ 150kg/s at 175°C • Three well system; two producers, one injector • Target depth ~ 4.5km • Anticipated temperature approaching 200°C • Host structure (buried granite) has naturally higher permeability than surrounding rock • Stimulation within and adjacent to the fault structure • ~ £50 million, in defined stages Geothermal Engineering Ltd

  5. UNITED DOWNS LOCATION Geothermal Engineering Ltd United Downs

  6. WHY THE UNITED DOWNS? • Drilling records from the Hot Dry Rock project (3 boreholes, deepest to 2.7kms) < 10kms from the United Downs site • Temperature data (boreholes and mines) • Gravity data • In-situ stress data • Injection and circulation tests • Mining records (extensive) • Heat flow data (with depth) • Seismic lines (off shore and on-shore) • Geo-chemistry • Stimulation programme and micro-seismic interpretation Geothermal Engineering Ltd

  7. UNITED DOWNS - PROGRESS Geothermal Engineering Ltd

  8. SUMMARY Geothermal Engineering Ltd david.bridgland@geothermalengineering.co.uk

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