The cost of such wells is uncertain. According to one estimate, the cost of drilling an enhanced geothermal well in the West to 13,000 feet is about $4 million to $10 million, depending in part on the diameter of the well. For a well 23,000 feet…

The cost of such wells is uncertain. According to one estimate, the cost of drilling an enhanced geothermal well in the West to 13,000 feet is about $4 million to $10 million, depending in part on the diameter of the well. For a well 23,000 feet…