Renewables are intermittent, pumped hydro could work at the expense of destroying Scottish national parks. Freewheel storage could also work. But SMRs are not ready yet, as outlined in the article. MSR thorium reactors are far in the future, probably past 2030. The closest to being done is NuScale's design which is a natural circulation PWR. But it was just approved this year. Also Russia has a barge with two naval reactors, but theycre small and I don't see the UK licensing Russian designs anytime soon.