The fallout in global energy markets from the ongoing conflict in Iran demonstrates the perils of overrelying on a single energy source like oil to meet America’s energy needs. As countries are forced to ration fuel and subsidize energy costs, sustainable alternatives like geothermal power are receiving renewed and well-deserved attention for their ability to deliver reliable, always-on power without the risks of price volatility or supply disruptions.
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One such company investing in clean energy solutions is Houston-based Quaise Energy. An MIT spinoff, Quaise Energy is building the world’s first superhot geothermal power plant in central Oregon, designed to be commercially operational by 2030. Dubbed “Project Obsidian,” the plant is designed to generate electricity by tapping geothermal resources at temperatures of 300 to 500 degrees Celsius, where the Earth’s heat is most intense. A single well at these temperatures delivers energy that is 10 to 100 times more powerful than traditional geothermal, the company claims.
Superhot geothermal is accessed using specialized millimeter-wave drilling technology capable of vaporizing rocks at depths far beyond the reach of conventional methods. Most of the Earth’s geothermal heat––known as “deep geothermal”––lies roughly two to twelve miles underground. Current methods can only extract energy near the Earth’s surface, or down to about two miles. Project Obsidian goes hotter and deeper than ever before.
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“If we really want geothermal to be a game changer, we have to operate at superhot temperatures, or over 375 Celsius,” Vice President of Geothermal Resource Development at Quaise Energy Trenton Cladouhos says.
The initial phase of the project aims to deliver 50 megawatts (MW) of zero-carbon power, with 200 MW to be added as more wells are installed. The aim is to develop a grid-scale solution that rivals the reliability of conventional fossil fuels.
According to a study released last year from the Clean Air Task Force, harnessing just one percent of the world’s superhot geothermal resources could supply 63 terawatts of reliable, emissions-free electricity–––more than eight times today’s global output and over four times the projected capacity for 2050.
Geothermal’s natural abundancy, flexible generation, compact footprint, and exceptional efficiency make it a uniquely dependable resource. Developing a diversified, resilient energy mix will be critical to buffering against global economic shocks and strengthening long-term energy security. Companies like Quaise Energy are positioning geothermal energy as a scalable alternative, far less vulnerable to geopolitical disruption.
The views and opinions expressed are those of the author’s and do not necessarily reflect the official policy or position of C3.