> Our partnership with Oklo helps advance the development of entirely new nuclear energy in Pike County, Ohio. This advanced nuclear technology campus — which may come online as early as 2030 — is poised to add up to 1.2 GW of clean baseload power directly into the PJM market and support our operations in the region.
It seems like they are definitely building a new plant in Ohio. I'm not sure exactly what is happening with TerraPower but it seems like an expansion rather than "purchasing power from existing nuke plants".
Perhaps I'm misreading it though.