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Sun-Powered Desalination: A Game Changer for Water Scarcity
1 Jul
Summary
- New solar-powered desalination technology developed in China.
- The system achieved 90.2% solar absorption efficiency.
- Production cost could be less than bottled water.
- Prototype ran for a full year with zero utility energy costs.
A groundbreaking solar-powered desalination technology developed by Chinese scientists promises to make converting seawater into fresh water more affordable than purchasing bottled water. This innovation addresses the long-standing challenge of desalination being an energy-intensive process.
The newly designed photothermal material is central to the breakthrough. It efficiently converts sunlight into heat, driving the evaporation process required for desalination with significantly reduced energy needs. The material achieved a solar absorption rate of up to 90.2% in tests.
A prototype system demonstrated its capability by running for an entire year solely on sunlight, incurring zero utility energy costs. This solar-driven system successfully desalinates seawater for irrigation, demonstrating its practical application without external power grids.
Researchers estimate that the cost of producing water using this method could fall below the price of bottled water within approximately two years of operation. Further scale-up or extended usage would lead to even greater savings, offering a sustainable option for regions facing water shortages.
