[ZeroGravitas]

Sweden has had more than 7% wind for a few years now, so we can safely say it's higher than 7%.

There's actually a single giant windfarm due for completion in 2020 that on its own will provide more than 8%.

There are some reasons to think solar and wind have physical limits and can't provide 100% on their own (or even together) economically just as nuclear on its own doesn't really make economic sense, but there's a long history of groups predicting false limits based on strange assumptions.

[That-one-thing]

You are correct in that the first estimate my the energy department was wrong. But the idea that it is all solved and that we can just build lots of it without having to worry is not a good strategy for a society in my opinion. Yes sometimes they sometimes make predictions that are wrong, but I still think that we should listen mostly to scientific prediction than anything else.

Yes and that the UK peaked at 28% is irrelevant ( EDIT: I used to harsh wording, yes it's a bit relevant but there are still problems with applying one solution to another place ) because they have different system with different possibilities. You can't implement the same systems everywhere since they have different conditions.

Maybe we can have almost exclusively power by wind in the future. But until then I prefer to listen to scientists and hear what they have to say.