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Responsible stewardship for now ... and the futureThe Claude “Bud” Lewis Carlsbad Desalination Plant is located along the Carlsbad coastline, and adjacent to one of North County San Diego’s most precious natural resources - the Agua Hedionda Lagoon.
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Poseidon Water will be dredging the Outer Basin of Agua Hedionda Lagoon to maintain the tidal flow thru the Lagoon and replenishing the sand on Carlsbad beaches. For more information see our AHL Dredge Frequently Asked Questions, Stakeholders Meeting Presentation, Stakeholders Invitation List and 2020/21 Dredge and Sand Deposition Plan. For more information and updates on the 2020/21 Dredging of Agua Hedionda Lagoon please contact us.
To learn more about the Agua Hedionda Lagoon, visit the Agua Hedionda Lagoon Foundation’s website at www.lagoon.aguahedionda.org. |
Map of Agua Hedionda Lagoon | |
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Energy efficiencySeawater desalination has long been used in regions all over the world where fresh water is in short supply. Today, there are more than 15,000 desalination plants worldwide in 150 countries, producing more than 18 billion gallons of fresh drinking water per day. An estimated 70 million people around the world rely on desalinated water for their daily water needs.
Recent advancements in reverse osmosis desalination technology make this method of securing fresh drinking water increasingly cost effective and, therefore, an even more viable option for ensuring water supply reliability. Coupled with other improvements in desalination technology, these advances have resulted in reduced energy consumption and lower operating costs. This technology is being used at the Carlsbad Desalination Plant to make it the most energy-efficient desalination plant in the nation. The Carlsbad Desalination Plant utilizes state-of-the-art pressure exchanger devices made by Energy Recovery, Inc. Because the device consumes no electricity and recycles otherwise lost energy, much like a hybrid car, the overall energy consumption of the reverse osmosis process is reduced by nearly 46 percent. This technology allows the desalination plant to save an estimated 146 million kilowatt-hours of energy per year, the equivalent of $12 million per year. As a result, they reduce carbon emissions by 42,000 metric tons annually – roughly equivalent to the annual greenhouse gas emissions from 9,000 passenger vehicles – by recycling the pressure from the reverse osmosis process. |
Energy recovery system.
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