Utility Kuth Energy has used 3D modelling to establish that an area known as the Tamar Conductivity Zone in Tasmania is a prime site for a new type of geothermal technology.

The model was made using data from a recent magnetotelluric survey that, when combined with aeromagnetic surveys, supported the idea that the area contains deep, permeable fractures in the rock that are home to hot fluids that can be harnessed to produce energy.

Data derived from the recent survey was combined with data from the existing 2008/2009 surveys to form an array suitable for 3D inversion modelling, and the final model built directly upon the 3D model previously developed in 2009.

Data acquisition for the magnetotelluric survey was undertaken by contractor Moombarriga Geoscience by measuring time-variations in the natural electromagnetic field above the region.

The 3D modelling work included some near-surface topography and was undertaken by Italian firm WesternGeco EM.

Kuth managing director David McDonald said the company was buoyed by the confirmation of the feature.

“We are encouraged by the potential for permeability, high flow rates and high temperatures, all of which are compelling reasons for the development of this resource, especially when coupled with proximity to transmission grid connections,” he said,

The company will continue to progress this project for further evaluation and commercial development.