No mention of the "B-Word" from the BBC as a possible contributing factor:
https://www.bbc.co.uk/news/business-58668594However:
"Gas prices are rising all across Europe, but Britain has also been affected by lower winds than usual - denting renewable energy supplies - as well as a recent fire at a National Grid site in Kent."
But, some mention of Brexit in this next article is quashed as a possible factor:
https://www.bbc.co.uk/news/business-58637094"Are gas prices rising in Europe?
The rise in global wholesale gas prices has been felt across Europe.
Some suggest Brexit has meant the UK is at a disadvantage when it comes to getting the best deal.
When it was in the EU, the UK was part of the Internal Energy Market which can enable countries to access electricity more smoothly and at lower cost.
However, the way gas is traded has been largely unaffected, which means leaving the EU has not had a significant impact."