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A Utah Startup Is Making a ‘Treasure Map’ for Geothermal Energy

Zanskar aims to fix a major blind spot as more companies dig into the earth for clean power.

A dry steam geothermal power plant in Calipatria, California.
A dry steam geothermal power plant in Calipatria, California.Photographer: Bing Guan/Bloomberg

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Carl Hoiland grew up in a rural Oregon, taking trips into the Sierra Mountains with his grandfather to prospect gold and uranium. In grad school, Hoiland studied geothermal energy, the complex science of converting heat sources buried within the earth into electricity.