There is an area of anomalously high surface heat flow in the the Mid West region of Western Australia.

Heat flow is an important indicator of geothermal energy potential. It generally suggests that high temperatures can be reached at relatively shallow depths.

The energy sector in Western Australia is undergoing an unprecedented transformation in the way electricity is supplied and used. More and more households are installing rooftop solar systems, and large-scale renewable generators are supplying increasing amounts of power to the grid from wind and solar projects.

The intermittent nature of these solar and wind resources is presenting challenges to the security, reliability and affordability of the power network (the South West Interconnected System or SWIS).

The synchronous power that could be generated from the geothermal resource in the Mid West would help to stabilise the grid whilst simultaneously reducing carbon emissions.

The STG EPA 0009 application area is located within the Southwest Interconnected System (the grey shaded area shown above). Two 132 kV transmission lines that connect Geraldton to Three Springs cross the area, providing direct access from the project to potential customers anywhere within the SWIS boundaries.