Comment by perihelions

There was a uranium enrichment plant in the south of France that was colocated with a nuclear power plant. It consumed 3/4th of its power output—2.7 gigawatts.

https://en.wikipedia.org/wiki/Tricastin_Nuclear_Power_Plant

- "Three out of four reactors were used for powering the Eurodif Uranium enrichment factory until 2012, the year that Eurodif was closed."