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Investing.com -- Rain Enhancement Technologies Holdco, Inc. (NASDAQ:RAIN) stock surged 51.8% in premarket trading Tuesday after the company announced it has commenced operations of its first U.S. installation in Colorado.
The company’s Weather Enhancement Technology Array (WETA) system was installed in Gill, Colorado, in October 2025 and is now operational under a permit valid through October 31, 2026, with potential for a five-year renewal. This marks Colorado’s first warm weather modification program, with the installation capable of enhancing up to 360 square miles of agricultural land in Weld County.
The ground-based WETA system uses electrical charge to create naturally occurring ionized aerosols that enhance condensation and stimulate precipitation. Unlike Colorado’s traditional cold weather cloud seeding that uses silver iodide, RAIN’s approach is chemical-free and solar-powered.
"This first U.S. installation represents a transformative milestone for Rain Enhancement Technologies as we bring our proven ionization technology to American agricultural communities," said Randy Seidl, CEO of Rain Enhancement Technologies.
The technology has demonstrated effectiveness through international deployments, including a six-year trial in Oman’s Hajar Mountains, where peer-reviewed results showed the potential to increase rainfall by 15-18%.
Andrew Rickert, Weather Modification Program Manager with the Colorado Water Conservation Board, stated, "We’re encouraged by the potential of this innovative technology to supplement water resources for Colorado’s agricultural communities."
The installation comes as western U.S. agriculture faces persistent drought conditions. The WETA system’s coverage area encompasses 230,000 acres of agricultural land that could benefit from enhanced precipitation.
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