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AI’s electricity demand is rising, but the available evidence does not establish a named, binding billion-dollar alliance between AI companies and green-hydrogen producers—or show hydrogen as a leading source of data-centre power. What it does show is a growing contest to secure dependable electricity for computing, alongside an industry proposal to use hydrogen for backup. Those are related developments, not proof of a single alliance.
How much electricity are data centres using?
The International Energy Agency (IEA) estimated that data centres used 415 terawatt-hours (TWh) of electricity in 2024, about 1.5% of global electricity consumption. That global share can make the demand seem modest, but it does not show how heavily a cluster of new facilities may load a particular grid.
Two later figures describe different things. The IEA’s 2026 update reported that data-centre electricity demand grew 17% in 2025, while demand from AI-focused data centres grew 50% that year. Separately, the IEA’s 2025 Base Case projected data-centre consumption of around 945 TWh in 2030, just under 3% of global electricity use. The 945 TWh figure is a modelled projection, not a measured 2030 result.
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The 2025 outlook also projected faster growth in electricity use by accelerated servers, which are mainly associated with AI, than by conventional servers. Its scenarios extend across a wide range by 2035, reflecting uncertainty about AI adoption, efficiency gains and constraints on energy supply. The 2026 growth rates are reported changes; they should not be confused with the 2025 report’s forecasts.
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Why AI power demand is a grid issue, not just a generation issue
A data centre’s electricity use comes from more than its computing chips. Servers, storage, networking, cooling and power systems all contribute, and facilities do not have identical load profiles. In its 2025 analysis, the IEA estimated that servers account for around 60% of electricity demand in modern data centres on average. Cooling’s share ranged from about 7% in efficient hyperscale centres to more than 30% in less-efficient enterprise centres.
Location matters as much as the global total. Large facilities can concentrate demand in a small area, while grid connections, transmission upgrades and major equipment take time to deliver. A country’s overall electricity supply may look adequate even as a specific region faces connection queues or infrastructure constraints. The IEA’s 2025 analysis identifies location, flexibility and new generation as relevant parts of the response; a global percentage alone cannot establish the impact on an individual city or grid.
This creates a practical constraint on AI expansion: computing capacity is useful only where reliable electricity can be delivered. The IEA’s 2025 report describes data centres as potential “anchors for new low-emissions power projects,” but an anchor customer or a clean-power procurement arrangement is not itself evidence that hydrogen is supplying the facility.
What role could hydrogen play?
Hydrogen Europe, an industry association, argued in a September 2025 position paper that hydrogen could be a clean backup-power option for data centres. The paper points to grid connections and electricity delivery as challenges that make backup relevant. It establishes an industry proposal and its rationale; it does not, by itself, demonstrate widespread deployment, commercial competitiveness, verified lifecycle emissions or a binding deal between a data-centre operator and a hydrogen supplier.
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It helps to separate four things that are often blurred together:
- Hydrogen: a fuel molecule, not a source of electricity by itself.
- Production pathway: the method and energy used to make the hydrogen, which determine whether it can reasonably be described as green or low-emissions.
- Power equipment: a fuel cell or another system that converts hydrogen into electricity.
- Data-centre supply: the electricity that actually reaches the facility, whether from the grid, on-site generation, backup equipment or a combination.
A proposal for hydrogen backup therefore does not mean a data centre runs on hydrogen during ordinary operations. Nor does the word “hydrogen” establish that the fuel is green: that claim requires evidence about the production pathway and emissions across an explicitly defined lifecycle boundary.
How hydrogen fits into the broader power mix
The IEA’s 2025 outlook describes a mix of sources meeting data-centre demand. It expects renewables to provide about half of global demand growth in its analysis, with storage and the broader grid supporting them. Natural gas, nuclear and other sources also contribute. Hydrogen does not appear in that summary as a leading supply source.
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Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →These are system-level observations, not a head-to-head assessment of hydrogen against batteries, gas, renewables or nuclear for a particular data centre. Such a comparison would need project-specific evidence about the role of the equipment, readiness and delivery, fuel supply, cost and scale, emissions methodology, reliability and local grid effects. The cited IEA outlook and Hydrogen Europe position paper do not establish all those values for hydrogen or its alternatives.
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Is there really a billion-dollar AI and green-hydrogen alliance?
The sources cited here do not identify a named, binding billion-dollar agreement between an AI company or data-centre operator and a green-hydrogen producer. They do not establish the participants, amount, date or binding status of such a deal. That is not proof that no project or agreement exists; it means the headline’s specific alliance claim is not substantiated by this evidence.
There is a meaningful connection between the two sectors: data centres need dependable power, and hydrogen advocates are proposing it as one possible backup option. But a broad overlap of interests is not the same as an alliance. To establish one, a reader would need a named project and counterparties, a documented commitment, and enough detail to distinguish a binding agreement from an announcement, aspiration or general industry position.
What would show that hydrogen is becoming a real data-centre power source?
Look for project-level documentation rather than sector-wide claims. A credible account should identify who is building or operating the facility, what equipment will generate power, where its hydrogen will come from, and whether the arrangement is for emergency backup or routine supply. It should also state the project’s status and the evidence behind claims about emissions, cost, scale and reliability.
Without those details, the strongest conclusion is limited: AI is adding rapidly growing electricity demand, grids and generation must respond, and hydrogen backup is an industry-proposed option. Whether it becomes a significant, verified low-emissions source for data centres depends on deployments and evidence that the cited sources do not establish.
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