The author should try to explain this passage to make sense:
"Water is then injected deep into the ground to create steam, which is much lighter than liquid water and rises through the pores to drive turbines for power generation."
Geothermal energy can be used to generate electricity at any time of the day or night. But what was previously only possible in specific locations could soon be realised on a large scale thanks to new processes. The first companies are already demonstrating this. Critics, however, see risks in so-called enhanced geothermal technologies, such as an increased threat of earthquakes.