What’s Holding Geothermal Energy Back?

It’s abundant, and it’s emissions-free: the heat from the earth’s mantle that reaches well into the crust and gives deep drillers a headache occasionally is the new star on the renewables block. Nevertheless, oil and gas companies have been somewhat reluctant to embrace it. Let’s first clarify: geothermal energy is only “new” in terms of the media attention it has been getting. Researchers – including people from the oil and gas industry – have been working for decades on technologies to extract the heat from…