I have my doubts that a company would be able to just abandon a live and operational nuclear power plant. I'm no nuclear or power engineer, but I am familiar with data center power consumption. There are companies in the region that would absolutely build more data centers, but are power constrained from the utility companies in the area, that are not just for AI, but for general compute. Even then, it's low carbon production energy. If you have a ton of excess power, just start forcing high carbon production facilities in the area to close and now you've greened the grid.