Right, but I don’t see anything in the title or the article itself about 30% being “sufficient.” To the contrary, the article quotes Sarah Brown, energy think tank Ember’s European program director:
The EU is “very much on the way” to its goal of having renewable sources account for 72 per cent of power generation by 2030.
This article is a celebration of a milestone that was crossed for the first time, no mention of 30% being sufficient. You’re assigning meaning that’s not there.