Upper Spencer Gulf (100% owned)

"An Engineered Geothermal Systems (EGS) project with potential for both electricity production and water desalination."

The Project

The Upper Spencer Gulf project, covering 1,938 km² along the Upper Spencer Gulf coast, has the potential to provide geothermal energy to power seawater desalination projects or electricity production. A 275 kV power line is situated along the eastern edge of the geothermal licences and two 275 kV lines are situated at the northern edge.

Green Rock Energy's exploration licences cover an area from south of Whyalla on the Eyre Peninsula, north to Port Augusta and then south along the east coast of the Spencer Gulf to below Port Pirie in South Australia.

Sections of the tenements are underlain by the prospective Hiltaba Suite granitic rocks. These granites contain the same radiogenic hot granite Suite which the Company is exploiting at Olympic Dam and provide the heat source for the geothermal energy.

Activities to Date

Low cost temperature logging was carried out in accessable shallow drill holes in our licence areas on the western side of Spencer Gulf. This has confirmed the anomalously high temperatures in the area which are likely to be due to the presence of heat generating Hiltaba Suite granites, the same type of granite which is the main heat source at our Olympic Dam project.

High heat flows in excess of 100mW/m² have been recorded in granites by others only a few kilometers to the north of GEL 243. This heat source is expected to extend into GEL 243.