Mining Old Coal Mines for “Instant” Geothermal Energy
May 3rd, 2012 | by Tina Casey
Flood an abandoned mine with water, let the surrounding rock heat it up, and there you have it: instant geothermal
May 3rd, 2012 | by Tina Casey
Flood an abandoned mine with water, let the surrounding rock heat it up, and there you have it: instant geothermal