What 'shallow' geothermal sites are there in Australia? A few...

What 'shallow' geothermal sites are there in Australia? A few warm springs here and there ain't it. We aren't on the tectonic plate edge where volcanic activity/heat occurs.

This article quotes geothermal plants operating in Australia in the '1980s and 1990s': the Wiki page reveals the true extent of their success in making the concept commercially viable:

"Projects

In 2010, 47 projects were identified in Australia.

Of the larger projects, Geodynamics Cooper Basin demonstration plant managed to progress the furthest. As at May 2022, no geothermal power plants are operating in Australia.

Geodynamics Cooper Basin Demonstration Plant, South Australia.

A Cooper Basin demonstration project to assess the potential of hot-rock geothermal energy for zero-emission, base-load power was built by Geodynamics. The 1 MWe Habanero pilot plant operated for 160 days in 2013 and prior to closure of the trial, the plant was operating at 19 kg/s and 215 degrees celsius production well head temperature. However, the project was abandoned after being assessed as uneconomic due to a combination of the cost of commercialising generation and the remoteness of the site."The technology worked but unfortunately the cost of implementing the technology and also the cost of delivering the electricity that was produced to a market was just greater than the revenue stream that we could create," Geodynamics chief executive Chris Murray said. Geodynamics wells have been plugged and remediated. Geodynamics is no longer exploring geothermal power and is instead looking at other green energy initiatives. It has therefore changed its name to ReNu Energy and changed its ASX code to RNE.

gTET Winton, Queensland

A small 310 kW geothermal power generation plant commenced commissioning in 2019 with the promise of becoming Australia's only operating geothermal power station. The plant was to utilise 86oC bore water from existing bores to produce electricity using an Organic Rankine Cycle. However, commissioning problems were not overcome and as of May 2022, the plant remains idle and the subject of legal dispute."

The quoted ARENA organisation and the big push to hydrogen, beware this also.

The stock market is littered with 'green dream' hopefuls who have gone down the ' we will produce green production hydrogen as everyone wants it ' route to find out there isn't that much of a market that isn't already being filled by those producing hydrogen as a byproduct of some other process.

Ideas are cheap, making them commerically viable and sustainable are another thing.