Octopus Pushes UK Gas Market Reform as TTF Climbs and Storage Falls Short
Greg Jackson warns Britain's market structure leaves consumers exposed to global gas swings, with European storage lagging 2025 levels and Hormuz LNG risk unresolved.
ICE Endex TTF front-month gas rose 2.37% to €73.67 per megawatt-hour on Wednesday (2026-09-02), keeping European wholesale prices under pressure at the same moment Octopus Energy founder Greg Jackson is publicly demanding structural change to how UK households pay for energy. Jackson, whose company is Britain's largest household electricity supplier, called on Greater Manchester Mayor Andy Burnham last week (week of 2026-08-25) for "urgent reform" to the energy market, warning that removing VAT from electricity bills, while welcome, falls short of protecting households from what he described as "volatile" global gas prices.6
The concern is structural. Britain buys a large share of its gas at spot rates tied to global benchmark prices, prices that have moved sharply since Middle East conflict escalated earlier this year. The International Monetary Fund identified the UK as among the most exposed European economies given that dependence, warning that the conflict is feeding directly into higher prices and weaker growth, the Telegraph reported in May (2026-05-20).1
European storage data from Monday (2026-07-13) showed facilities at 47% full, 9 percentage points below the 56% recorded at the equivalent point in 2025. If that gap has persisted, Europe enters the autumn draw season with a thinner buffer than last year.5
The Strait of Hormuz is where Britain's structural exposure meets its sharpest supply threat. Goldman Sachs estimated that a disruption to LNG shipments through the Strait cut near-term global LNG supply by roughly 19%, according to CNBC's reporting on Tuesday (2026-05-19). Chris Wheaton, oil and gas analyst at Stifel, calculated that around 25% of Europe's total gas supply arrives as LNG, making the continent directly sensitive to any sustained disruption. With roughly 20% of global LNG production passing through the Strait, Wheaton said in a note, a prolonged blockade could trigger a supply squeeze comparable to the shock that followed Russia's invasion of Ukraine in 2022.2
Markets have already experienced one sharp repricing. TTF futures surged 35% on Tuesday (2026-05-19) to more than €60 per megawatt-hour, and over the week prices stood around 76% higher than at the start of the move, CNBC reported. When Hormuz tensions resurfaced in mid-July, TTF gained 3.5% in early trading on Monday (2026-07-13) to €50.37 per megawatt-hour, while the equivalent UK natural gas contract rose 4% in the same session.2,5
The International Energy Agency, publishing on July 7 (2026-07-07), forecast the first annual drop in global natural gas demand, attributing it to consumption destruction driven by elevated prices across Europe and parts of Asia. That reading points to economic damage already under way, not a risk still approaching.4
JKM, Asia's LNG benchmark, was flat at $23.76 per MMBtu on Wednesday (2026-09-02), reflecting continued demand softness that could in theory free up spot cargoes for European buyers. ICE Brent crude front-month dipped 0.27% to $95.24 per barrel on Wednesday (2026-09-02), signalling that the oil market is not priced for an acute supply emergency. But gas and crude do not move in lockstep. A stable crude price does not confirm that LNG flows through the Strait have fully normalised.3,2
For UK households, the cost trajectory is already visible. Analysts at Boston Consulting Group estimated that if current market structures persist, households will spend £264 more on energy bills within a decade, according to reporting on Jackson's remarks last week (week of 2026-08-25). His argument is that VAT relief was a useful first step but that a deeper redesign — one that severs the link between retail electricity prices and the marginal cost of gas — is what is needed.6
No timeline for such reform has emerged. Storage at 47% full in mid-July was already lagging 2025 levels, and if September fails to close that gap, buyers will be exposed to any renewed Hormuz disruption well before winter demand peaks. TTF at €73.67 on Wednesday (2026-09-02), up 2.37% on the session, is the market's current read on that risk.6,5