It uses treated wastewater for cooling, and due to rising costs, is seeking alternate water sources (as it requires 40k-60k gallons per minute to meet cooling needs).
It’s continued operation is unsustainable based on water availability in the region. It’s stretching to find process water, so I wouldn’t hold it up as a success story, more as “it works for now, but we’re going to need a Plan B when it is no longer sustainable to run.” Its Arizona, so solar, storage, and transmission are fine replacements when it’s retirement is near.
its only the largest nuclear plant in the country :-)