Energy policy — geothermal: Results from Poncha Springs test hole looks promising

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From The Mountain Mail (Cailey McDermott):

The first hole at Poncha Hot Springs [which demonstrated a thermal gradient of 178 degrees Celsius per kilometer] was drilled to a relatively shallow depth of 255 feet to determine if the thermal gradient is sufficient to warrant a deeper hole. Morgan said shallow holes cost about $10,000 each, while the cost of a borehole deep enough to facilitate geothermal electricity production is around $1 million. The project budget, $50,000, came from a state grant…

[Frederick Henderson of Hendco Services] said temperature readings gathered from the first hole were “really very good.” But he clarified that the number is preliminary and the hole will need to be retested when the temperature has stabilized. He said drilling machines sometimes makes a difference in air temperature in the hole and the next test may be higher or lower. Henderson said geothermal testing near Mount Princeton returned thermal gradient measurements eight times greater than normal, making it the most significant thermal gradient in the state.

More geothermal coverage here and here.

One Response to Energy policy — geothermal: Results from Poncha Springs test hole looks promising

  1. [...] difference in air temperature in the hole and the next test may be higher or lower. Henderson said Geothermal testing near Mount Princeton returned thermal gradient measurements eight times greater than [...]

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