I think part of the problem is that we don't have sufficient gas storage. We've been warned about this in the past. It leaves us open to higher prices. Our largest storage "Rough" was closed 4 years ago.
This article is nearly a year old so pre the most recent invasion of Ukraine.
In the midst of a global energy crisis Europe is preparing to enter the winter with its lowest reserves of gas in at least 10 years. For the UK, which has some of the continent’s lowest gas storage capacity, the drawing in of colder months has left households even more vulnerable to the risk of shortages.
The UK’s stores hold enough gas to meet the demand of four to five winter days, or just 1% of Europe’s total available storage. The Netherlands has capacity more than nine times the UK’s, while Germany’s is 16 times the size.
Britain’s continental neighbours also have lower gas market prices."
"But critics warned that the shutdown of the North Sea site would leave the UK exposed to the volatility of the global gas market, and forced to compete with other nations to attract imports with sky-high prices.
Charles Hendry, then a Tory MP, warned before the Rough shutdown that the UK should be paying to build more gas storage facilities after coming within hours of running out of gas, and said the country was relying “on luck” to avoid the gas grid running dry.
It was a matter of months after the closure of the Rough site that the UK’s energy operator, National Grid, issued a formal warning that the country did not have enough gas to meet demand during the freezing “beast from the east” storm which battered the UK in March 2018."
amp.theguardian.com/business/2021/sep/24/how-uk-energy-policies-have-left-britain-exposed-to-winter-gas-price-hikes
We end up paying more.