A new analysis led by a University of Wyoming researcher shows that brackish or salty groundwater has the potential to replace fresh water to cool coal- and natural gas-fired power plants and strengthen resilience in the energy infrastructure, although there’s a cost associated with doing so.
With freshwater supplies threatened due to drought, climate change and rapid socioeconomic growth, water competition is increasing between the electric power sector and other sectors. While transitioning to a low-carbon energy future, decarbonization of fossil fuel-fired power plants by carbon capture and storage would significantly increase water consumption and exacerbate water competition. Water challenges drive power plant operators to explore alternative water sources.
“Nontraditional water sources can be deployed to help cope with climate-induced water risks and tackle the increasing water demand for decarbonization of fossil fuel-fired power plants,” wrote the research team, led by Haibo Zhai, UW’s Roy and Caryl Cline Distinguished Chair in the College of Engineering and Physical Sciences. “Treatment of brackish groundwater for thermoelectric generation cooling can help alleviate potential competition for freshwater resources among various sectors in water-stressed regions.”
Read more at: University of Wyoming
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