geothermal energy 2.76   There is some promise of geothermal energy.
  geothermal plant 1.05   Geothermal plants tap into that pressure and use it to spin turbines.
  geothermal power 1.05   The deal would create the largest geothermal power company.
  geothermal system 0.66   But there is none of that with geothermal systems.
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