SM, I know that they have stopped work, but I don't know if they have abandoned it.
From what I read they were having corrosion problems with the pipes.
There could be other problems as well. Recycling the water is fairly
normal anyway and means hot water going down instead of cold water.
I gather the govt is not putting any more into Geodynamics.

Warmair, the first two references seem to be volcanic not hot rocks.

Bazz
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Both the power stations listed below are definitely hot rocks and do not use naturally occurring geothermal hot water as found in places like Iceland.

The technique is similar to fracking and is now given the snazzy name of Enhanced Geothermal Systems or EGS
I messed up the links in my previous post somehow, those given below should be more relevant.

In France
Soultz-sous-Forêts
http://www.bine.info/fileadmin/content/Publikationen/Englische_Infos/projekt_0409_engl_Internetx.pdf
Uses hot rocks at 200 Deg C 5000 meters below surface.
Water is recirculated via a number of bore holes and the heat is then passed through a heat exchanger to generate steam.

Landau in south western Germany
http://www.cleanenergyactionproject.com/CleanEnergyActionProject/Geothermal_Technologies_Case_Studies_files/Landau%20EGS%20Geothermal%20CHP%20Plant.pdf
Uses hot rocks 3000 meters below the surface at 155 Deg C
By the way there are no volcanoes in Germany.

There is a problem in that the method is known to lead to small local earthquakes, which suggests that it may not be suitable in populated areas, but I guess this is hardly going to be a problem in outback Australia, after all the the problem should not be as bad, as fracking for fossil fuel reserves, where they try to make even bigger cracks in the rocks