eli5: Why geothermal energy is not very efficent? If we dug much Much deeper could we gather massive amounts of energy because of being closer to the core? (I saw how close we are currently to it so I don’t think its happening anytime soon)
In: Earth Science
One of the main issues with geothermal energy is the relatively low temperature of steam produced. For a number of reasons ranging from pressure limits to flow restrictions, the steam coming out of a geothermal borehole is generally colder than what a boiler can achieve — and it’s the energy beyond that required for boiling that can be extracted by turbines, so hotter steam can have energy extracted more efficiently before it condenses again.
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