The Hormuz Shock: What the Iran War Means for European Energy Security and Electrification

AI Data Centres: The 7 principles for building AI infrastructure as climate infrastructure

March 2026 | Energy Security | Geopolitics

TL;DR

Hormuz disruption spikes prices: Iran conflict chokes LNG/oil flows, sending European gas prices up over 70%

Europe’s gas vulnerability exposed: Low storage and tight global LNG supply force Europe and the UK into costly competition for cargoes
Crisis highlights need for electrification: High gas-linked power prices hinder heat pumps/EVs but reinforce the case for more renewables

A shock to the system

On 28 February 2026, United States and Israeli military strikes on Iran triggered the most consequential energy-security event since Russia’s invasion of Ukraine. Within days, tanker traffic through the Strait of Hormuz — the narrow chokepoint through which roughly 20 per cent of global oil and liquefied natural gas (LNG) trade passes every day — had slowed to near standstill. Qatar decided to halt production of liquefied natural gas (LNG) in the wake of Iran's retaliatory strikes. European benchmark gas prices at the TTF hub jumped from €31.90 per megawatt-hour (MWh) on 27 February to over €54/MWh within days — a surge of more than 70 per cent in under a week.

The consequences for the UK and EU, both still nursing the wounds of the 2021–23 energy crisis, are profound.

Gas in Europe: A Market Already Under Strain

The conflict arrived at a structurally vulnerable moment for European gas markets. Europe entered March 2026 with storage at just 46 billion cubic metres (bcm) — well below the 60 bcm recorded at the same point in 2025, and a striking contrast to the 77 bcm available at the end of February 2024. According to analysts at Energy Aspects and SEB Research, European storage could end March at just 22–27 per cent capacity, against a five-year average of around 41 per cent.

Refilling those stores for next winter will require approximately 180 more LNG cargoes than last year, according to analysts at Kpler. Yet the supply pipeline has just been throttled. Qatar accounted for 8 per cent of Europe’s LNG imports, with over 58 per cent coming from the US. On top of that, with Ras Laffan shut, and about 20 per cent of the world’s LNG trade gone, the remaining global LNG market tightens immediately. Europe must now compete with Asian buyers — who collectively take four-fifths of Hormuz-transiting LNG — on a spot market where there is, as one industry analyst put it, “not a lot of excess LNG capacity around the world” to fill the gap.

The result? Skyrocketing prices that bring painful memories to European countries of the recent energy crisis in 2022, after the Russian invasion of Ukraine.

The UK’s Particular Exposure

The United Kingdom does not import meaningfully from the Gulf directly. Most of its gas arrives by pipeline from Norway or as LNG from the United States. Yet as independent energy analyst Gaurav Sharma noted this week, “UK wholesale gas prices are up more than 40 per cent since Monday” — because oil and gas are globally priced commodities. If Qatari volumes disappear from spot markets, the UK must pay more to outbid Asian buyers for US and Norwegian cargoes. Chancellor Rachel Reeves met North Sea operators this week to discuss implications, yet the underlying reality is difficult to escape: the UK imported nearly 43.8 per cent of its energy in 2025, up from 40 per cent the year before. Domestically produced offshore gas is declining due to years of underinvestment, and clean-energy projects are struggling to connect to the grid, leaving Britain price-exposed to precisely the kind of shock that has now materialised.

For the EU, the situation is more structurally complex. Since the rupture with Russian pipeline gas in 2022, Europe dramatically expanded its LNG import capacity. The US now supplies 25.4 per cent of EU gas, with Norway following as the second largest overall supplier. But as think tank Bruegel has observed, this post-Russia pivot has merely swapped a supplier dependency for a chokepoint vulnerability, that will increase prices for Europeans independently of limited physical imports. The 2022 crisis was caused by a deliberate supply restriction. Today’s shock is caused by a distant geopolitical instability.

Inference-First Data Centres as Climate Infrastructure

If training demands centralisation, inference opens the door to distribution. The shift from training-first to inference-first architectures isn’t just a technical shift — it’s a generational opportunity. Inference unlocks a new model: smaller, distributed compute that can be designed as climate-aligned, community-aligned infrastructure.

With intentional design, such as embedding Opna's core pillars of climate-aligned infrastructure, these centres can underwrite new clean energy projects, such as the multi-billion-dollar clean energy partnerships for data centres; drive demand for low-carbon materials, evidenced by growing investment in low-carbon cement production; scale carbon removal and water replenishment through emerging solutions like mineralisation-based CO₂ storage and large-scale water stewardship projects; and embed circular heat reuse in industries and communities, demonstrated by initiatives that use data centre heat to warm greenhouses.

This is the real promise of the inference era: infrastructure that is not only technologically efficient but socially and ecologically productive.

The Electrification Dilemma

As the Climate Change Committee has already warned, electricity consumption could more than double by 2050 as EVs, heat pumps and data centres accelerate and connect to the grid. But there is a harder, more strategic lesson embedded in this crisis. In reality, electrification is not a choice anymore. It is mandatory. It is the source of our power that will determine our energy security. As the Brussels think tank Bruegel argued in the days after the strikes, “only by reducing structural dependence on oil and LNG imports can Europe durably shield its economy from recurrent external shocks.” The European Commission has resisted calls from member states to suspend the EU Emissions Trading System, arguing that low-carbon energy is the only durable answer to external price exposure — not a policy luxury to be abandoned when times get hard. Put in the words of a research analyst at Global Energy Monitor “This is yet another opportunity for Europe to get more serious about electrification and renewables. Exposure to these geopolitical shocks will continue until it is less dependent on gas.”

Inference-First Data Centres as Climate Infrastructure

This is the real promise of the inference era: infrastructure that is not only technologically efficient but socially and ecologically productive.

An urgent way forward

The IEA projects that global LNG supply will grow by more than 7 per cent in 2026, with the bulk of new capacity coming from the United States. That will ease the immediate squeeze if the Hormuz disruption is short-lived. But no amount of supply-side diversification eliminates the fundamental exposure: as long as European power systems remain partly dependent on traded fossil fuels, they remain hostage to events in distant straits and foreign capitals.

The long-term remedy is well understood on both sides of the Channel: more domestic wind and solar, deeper grid interconnection, and the pricing reforms that make electrification economically rational. But for this to be true, effective physical long-lead equipment needs to be deployed, and grid connection queues for renewable power projects shortened. Green renewable energy is not only about climate resilience anymore, it is about making our energy systems future-proof in an unpredictable and turbulent geopolitical environment.

The Hormuz shock does not change the destination. But it should sharpen, considerably, the sense of urgency about reaching it.