One of UK’s oldest nuclear waste storage silos is currently leaking radioactive liquid into the ground. That is a “recurrence of a historic leak” that Sellafield Ltd, the company that operates the site, says first started in the 1970s.
Sellafield has also faced questions about its working culture and adherence to safety rules. The company is currently awaiting sentencing after it pleaded guilty, in June, to charges related to cyber-security failings.
Based on this article from 2009 it is only 230 years based on the consumption rate at that point in time, which since then obviously just went up massively.
A huge issue with nuclear, aside from its cost and long time to build, is the fact that nations focusing on nuclear energy do not actually build a whole lot of renewables.
Edit: Also, a lot of uranium reserves are in Russia.