Oh, it very much is: Windscale and Sellafield are linked in the public mind here. Here, Sellafield was seen as a rebranding exercise for Windscale. > Wikipedia

Oh, it very much is: Windscale and Sellafield are linked in the public mind here. Here, Sellafield was seen as a rebranding exercise for Windscale. > Wikipedia seems to think it is prohibited - 1999 Electricity Regulation Act. I was careful with my use of language: it's not illegal, but under 18.6 of the act, "An order under this section shall not provide for the use of nuclear fission for the generation of electricity." So it's not _illegal_ or banned, but the goverment simply won't grant licenses. Also, it specifically refers to fission. Something like the thorium fuel cycle might be considered legal under the act, depending on how you read it.