Technical Work Progress Post Scopenergy Prospectus Graeme Beardsmore and Steven Sewell March 2008: In December 2005, Scopenergy Pty Ltd produced a Prospectus as part of a proposed listing on the Australian Stock Exchange. This included a detailed description of the technical work program, key findings and expected geothermal resource parameters for Scopenergy’s Limestone Coast Geothermal Project at that date. The Prospectus formed the basis for a $4m REDI grant submission, which was awarded in December 2005. This report summarises the technical work undertaken by Scopenergy subsequent to completing its previous REDI grant submission, provides commentary on the implications of that work, and makes recommendations for the next stage of appraisal work. Thermal conductivity of core specimens MON1101—MON1122, Prepared for Monash University Sept 2011: Monash University delivered twenty-two core specimens to Hot Dry Rocks Pty Ltd (HDR) on 12 August 2011 for thermal conductivity measurements. A Monash University student selected the specimens from the PIRSA Glenside Core Library on 10 August 2011. Thermal conductivity measurements were made using a steady state divided bar apparatus calibrated for the range 0.5–12 W/mK. Up to three samples were prepared from each specimen to investigate variation in thermal conductivity over short distance scales and to determine mean conductivity and uncertainty. All values were measured at a mean temperature of 25°C (± 2°C). Measurements were undertaken from 30 August – 7 September 2011. Geothermal Systems Assessment of the Limestone Coast Project, South Australia April 2012: Panax Geothermal Limited (PAX) commissioned Hot Dry Rocks Pty Ltd (HDR) to review and assess the potential for geothermal energy targets within its Limestone Coast Geothermal Project (LCGP) located in the Otway Basin, South Australia. This report is a desktop scoping study which addresses principle geological risks at a tenement scale, and has been undertaken using a risk assessment framework developed by HDR, the Geothermal Systems Assessment (GSA). The principle risk areas addressed in the GSA include the presence of an adequate thermal insulating cover sequence (hence adequate temperatures for geothermal prospectivity), the presence of a suitable reservoir unit (either as a sedimentary aquifer or other suitable lithology which may be susceptible to artificial permeability enhancement), and the availability of water. PAX has indicated a principal interest in identification of a follow up geothermal exploration drill location to the Salamander 1 well located in the Penola Trough. HDR constructed 1D heat flow models of 36 petroleum, geothermal and groundwater wells for which measured borehole temperature data were considered reliable, constrained by thermal conductivity values of individual formations. The results of these models provided 34 surface heat flow constraints for subsequent 3D temperature modelling.