“We effectively have no gas storage, which makes us vulnerable and we just left the EU,” said Niall Trimble, managing director of consultants Energy Contract Co. “This is one of the side-effects of Brexit: we’ve become more vulnerable on energy security.”
Even that, is not entirely true....
https://www.storengy.co.uk/storengy-uk-stublach-site/learn-more-about-gas-storage