Ann: Maiden JORC Resource for Alpha Project, page-37

"Could this be the reason for the shift from the gas/ solar hybrid power plant to the geothermal option?"

The way I read it is that the geothermal project at one of three remote sites is separate and additional to hybrid solar/gas project located at Alpha.
The gas component at Alpha is retort gas coming from the bitumen retort and utilising this gas is integral to bitumen processing. Solar is deployed for carbon offset and presumably for scaling up the power capacity to 100MW.
I think the PFS reference was in relation to geothermal and that we can still expect a DFS for the Alpha project this quarter.
It would be nice to get clarification of the above from the company!