I hope they work out the turbine corrosion problem
from dissolved mineral buildup
Seems to me they could devise a system where they introduce the water to depth, that could be heated by the steam, thus expanding and driving a turbine above ground. As the steam passed the turbine, it could be channeled into a pool to be used again.
From your comments, it seems you were referencing them utilizing direct steam from the geothermal supply. That would contain far more minerals for corrosion.
I’m certainly no expert here, but this does seem like a way to cut down on mineral deposit problems.
Heat exchangers. You don't circulate the groundwater to and from the turbines. You use the high-temperature groundwater to flash pure water into steam.