geothermal energy, definition of

 The conversion of salt or brackish water into usable fresh water. Distillation is the most common commercial method; heat from the Sun or conventional fuels vaporizes brine, the vapor condensing into fresh water on cooling. Reverse osmosis and electrodialysis both remove salt from water by the use of semipermeable membranes; these processes are more suitable for brackish water. Pure water crystals may also be separated from brine by freezing.

The biggest problem holding back the wider adoption of desalination techniques is that of how to meet the high energy costs of all such processes. Only where energy is relatively cheap and water particularly scarce is desalination economic, and even then complex energy conservation procedures must be built into the plant.

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• Three Times the Cost, Causes Earthquakes–Roll on the Green Power Revolution!
  So it’s OK to have earthquakes three times as powerful as from fracking, because geothermal is “good” and fracking “bad”.
• ‘Magic beneath the surface’: pioneering geothermal plant launched in Cornwall
  A new mini power station and lithium extraction facility near Redruth are set to bolster green energy and create jobs
• ‘The LED of heating’: cheap geothermal energy system makes US comeback
  Minnesota housing project to draw energy from water stored deep underground, 45 years on from city’s initial research
• Chinese Investment Company: Tech Giants are Turning to Geothermal to Power AI
  "... Rising electricity demand from data centers drives both the quantity and price of geothermal installations. ..."
• ‘Shooting ourselves in the foot’: how Trump is fumbling geothermal energy
  Former energy officials raise alarm about tariffs, cuts and other policies creating uncertainty in geothermal industry
• The Energy Trifecta: Nuclear, Fossil Fuels…and Geothermal Energy
  The U.S. stands at a pivotal crossroads in its energy future. As artificial intelligence (AI) accelerates its transformation of industries and daily life, the nation’s appetite for electricity is surging to unprecedented levels.
• Geothermal Energy: Another Nail in the Coffin of Wind and Solar Power?
  Geothermal’s potential to join fossil fuels and nuclear energy in powering America’s economy in the years to come far exceeds anything weather-dependent wind and solar could ever match...
• US renewable energy has tripled in a decade – but almost $8bn in projects now face cuts
  Political uncertainty under Trump has dampened the market, even as red states see a boom in renewable energy
• US renewable energy has tripled in a decade – but Trump cuts almost $8bn in projects
  Political uncertainty under Trump has dampened the market, even as red states see a boom in renewable energy
• Geothermal electricity generation
  Geothermal power stations are mature technology with proven performance, reliable operation and ideal for baseload generation. The units are synchronous, so they support the grid.  The production from them is considered by most to be renewable. They...