Understanding water’s role in decarbonization

Read the full story from the Prairie Research Institute.

When the Illinois Sustainable Technology Center (ISTC) launched a front-end engineering and design study for a carbon capture system at the Prairie State Generating Company’s (PSGC) Energy Campus in Marissa, Illinois, identifying a sustainable source of water was a priority from the start.  

Once completed, PSGC’s carbon capture system will be the largest post-combustion capture plant in the world. Initially, the system will require approximately 14 million gallons of water per day (MGD), which almost doubles the current PSGC water demand.   

The challenge: find adequate and reliable water sources to keep the carbon capture system running without compromising fragile aquatic ecosystems, local economies, and nearby communities’ water supply. Fortunately, ISTC knew the right expertise was close at hand in another unit within its parent Prairie Research Institute. The Water Survey’s Watershed Science team, led by Illinois State Hydrologist Laura Keefer, specializes in solving these types of problems.  

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