This article (MIT) possibly makes outrageous claims, but it also contains a historical review of deep drilling projects.
I just wrote a critical blog post about geothermal energy here.
"MIT spin-off Quaise is trying to use hijacked fusion technology to drill some of the deepest holes in history, unlocking clean, virtually limitless, supercritical geothermal energy that can re-power fossil-fueled power plants all over the world. But how does it work? And are they even close to realizing their vision? ...
Where there's access to heat, there's harvestable geothermal energy. And there's so much heat below the Earth's surface ... that tapping just 0.1% of it could supply the entire world's energy needs for more than 20 million years. ...
The company has raised some US$105 million to date, and it looks to raise another $200 million to get to its first commercial power plant.
Quaise plans to drill holes up to 20 km (12.4 miles) deep, significantly deeper than the Kola Superdeep Borehole – but where the Kola team took nearly 20 years to reach their limit, Quaise expects its gyrotron-enhanced process to take just 100 days. And that's assuming a 1-MW gyrotron.
Quaise's hybrid ultra-deep drilling rig will combine conventional rotary drilling with gyrotron-powered mm-wave directed energy drilling, pressure-purged with electromagnetically-transparent argon gas. ..."
Quaise's hybrid ultra-deep drilling rig will combine conventional rotary drilling with gyrotron-powered mm-wave directed energy drilling, pressure-purged with electromagnetically-transparent argon gas
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