Tuesday, August 19, 2025

Subsea desalination to boost California's drinking water supply by 2030

Good news! Desalination is salvation!

"Dozens of water-harvesting pods are set to be deployed along the sea floor off the coast of California as the United States ramps up its first subsea desalination project. The effort is expected to produce 60 million gallons (227 million liters) of fresh water per day. ..."

"OceanWell, a water technology company, announced plans to advance Water Farm 1 (WF1)– the first subsea reverse osmosis desalination project in the U.S. -- in partnership with Las Virgenes Municipal Water District (LVMWD) and a consortium of six other California water agencies. The project is expected to deliver up to 60 million gallons per day (MGD), or just under 230,000 m3 per day, of drinking water by 2030 – offering a new model for reliable, drought-resilient water supply.

Anchored approximately 4.5 miles off the coast of Malibu, CA, in Santa Monica Bay, WF1 represents a major leap forward in resilient water supply. Using natural hydrostatic pressure at depths of 400 meters (1,300 feet), OceanWell's modular pods can each harvest up to one million gallons of fresh water daily, reducing energy use by 40% and avoiding the brine discharge and marine life disruption associated with traditional desalination. ..."

Subsea desalination to boost California's water supply





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