California’s Salton Sea, the state’s largest lake, is home to a newly discovered lithium deposit valued at an estimated $540 billion. This vast reserve of the coveted mineral could be instrumental in producing enough batteries for 382 million electric vehicles (EVs), significantly bolstering the nation’s clean energy ambitions.

A game-changer for U.S. lithium production

The discovery emerged from a research project funded by the U.S. Department of Energy, aimed at assessing the lithium concentration—often referred to as “white gold” due to its sand-like appearance—at the lake’s depths. According to Michael McKibben, a geochemistry professor at the University of California and co-author of the study, this find is among “one of the largest lithium brine deposits in the world.” McKibben noted that this discovery could potentially shift the U.S. toward lithium self-sufficiency, eliminating reliance on imports from countries like China. With global demand for lithium soaring due to its critical role in rechargeable batteries for electric vehicles and renewable energy storage, this find could transform America’s position in the chemical industry.

The ‘Saudi Arabia of lithium’

California Governor Gavin Newsom has previously referred to the Salton Sea as the “Saudi Arabia of lithium.” The lake’s rich deposits now position it as a significant global player in supplying the world with this essential resource. The U.S. could emerge as a major force in the EV revolution, leveraging its domestic supply to meet the increasing demand for clean energy technology.

The complex task of extraction

However, extracting lithium from the Salton Sea poses significant challenges. The process involves drilling geothermal production wells deep into the Earth’s surface to access lithium-rich brine.

Once the lithium is separated from the brine, the remaining liquid must be pumped back underground. This operation could have environmental consequences, potentially impacting the 180,000 residents living near the lake and affecting the region’s water supplies sourced from the Colorado River. Despite these challenges, the discovery underscores the critical role the Salton Sea could play in reshaping the future of energy, both in the U.S. and worldwide.