The price of gas and electricity across the UK looks set to rocket again, according to experts. Michael Bradshaw and Louis Fletcher at the University of Warwick say prices are already climbing again and we are sitting on a knife-edge of multiple problems that could send prices through the roof.

It comes as rising tensions in the Middle East could disrupt shipments of liquefied natural gas (LNG) that equal 20% of global exports. Professor Bradshaw said: “We believe this winter will be the final act of the gas crisis.”

The UK relies on gas for 37% of all energy consumption – with gas fueling homes directly and being used in power stations. Four-fifths of households use gas for heating and in the UK, electricity prices are set by the price of gas-fired generation.

And the problem is worse in the UK than in other countries, Professor Bradshaw told The Conversation: “After a decade of failed home insulation and energy-efficiency policies, the UK still has some of the draughtiest homes in Europe. It simply takes more energy to heat British homes, which lose heat three times faster than European neighbours.”

The Energy Crisis Commission recently found that the UK remains “dangerously underprepared” for a repeat of the gas price explosion of 2022-23. Resurgent gas demand after the lifting of Covid restrictions led to a quadrupling of UK gas prices in 2021. Following Russia’s invasion of Ukraine in February 2022, Vladimir Putin throttled pipeline gas exports to Europe.

Energy bills for an average household in the UK hit £4,279 in January 2023. The government protected consumers from the very worst but the average household lost 8% of its budget to energy costs in 2022, rising to 18% for the poorest tenth of households. Roughly 2 million households on pre-payment meters were being cut off from their energy supply at least once a month at the height of the crisis.

Clement winters, moderate gas demand in Asia and successful measures to curb European gas demand saw UK gas prices fall from mid-2023. But they are still relatively high at 48% above the average in the three years before Russia’s invasion of Ukraine.

Professor Bradshaw said: “Several disturbances could destabilise this balance. The International Energy Agency expects that over 2024, global growth in gas demand will exceed the rate of growth in new LNG supply. Attacks on commercial vessels in the Red Sea by the Houthi militia in Yemen, in response to Israel’s invasion of Gaza, have rerouted LNG shipping routes. Cargoes that would have passed through the Suez Canal must now take the longer route around the Cape of Good Hope.”

“At the end of 2024, a major five-year agreement governing the transit of Russian gas through Ukraine will expire, and there is no prospect of renewal. Russian gas supplies to Europe will fall by around 5% of the EU’s total gas imports, or 65% of all gas imports into Austria, Hungary and Slovakia.”

“While Europe has been saved by mild winters over the last two years, this luck could break in 2024-25 according to some forecasts. Temperature and the demand it creates for heating will probably decide winter gas prices in Europe.”

“Israel’s escalating military assaults on Hezbollah since September 17 have coincided with a 17% rise in UK gas prices. After Iran’s missile and drone strikes against Israel on October 1, European gas prices hit a new high for the year. This saw three LNG tankers destined for Asia change course mid-journey and head for Europe.”

“Israel has vowed retribution for the Iranian strike. Having obliterated Gaza and decapitated Hezbollah’s leadership, and with resolute material support from the US, Israel may now see Iran as vulnerable.”

“A severe response by Israel, targeting Iran’s nuclear facilities or oil infrastructure, would further up the ante. Wishing to avoid direct conflict, Iran could decide to target not Israel, but the flow of oil and gas through the Strait of Hormuz on which its western backers depend. Qatari LNG shipments through the strait account for 20% of global supply on their own.”

“Any interruption would also block Iran’s oil exports, afflict Iran’s friends as much as its foes, and kill Iran’s current reconciliation with the Gulf states. It is unlikely, but one would hope that the warning signs in the global gas market would remind western decision-makers that the conflict in the Middle East can continue to blow back on them.”