I don't see any evidence for that. Just people saying it.

There don't seem to be any comments on this thread referring to rationing.

And FYI energy rationing has been one policy consideration for decades.

UK gov energy rationing proposal [1] 'Personal carbon allowances [2]

There's always discussion about this sort of thing, it's not fear mongering to point out that fact.

[1] https://publications.parliament.uk/pa/cm200607/cmselect/cmen... [2] https://www.nature.com/articles/s41893-021-00756-w