Anything from the Telegraph should be treated as suspect and an alternative source should be found.
And the same BBC article says that the Telegraph reported it as "the power plant was shut down for four days", whereas on the other hand, the UK Government DESNZ said it only "affected a small-scale generator" not even an entire power plant.
It's always difficult in these situations to read through the FUD and see what the truth is.
And i bet that a lot of "Eastern European" "news outlets", which have nothing to do with it, reported it. Funny how propaganda works.
The people who give us this sort of wisdom discredit themselves by proving they relate like credulous children to whatever news source they are using.
All news sources are not equal.