The 2026 FIFA World Cup was described as the largest and most technologically complex tournament to date.

Each match was expected to see fans inside a single stadium consume more than 50 terabytes of data, roughly the equivalent of streaming high-definition video continuously for more than three years, Capacity previously reported. Operators had to plan across 16 venues, in addition to fan festival sites, transport hubs, accreditation centres, hotel and surrounding city areas.

As the final game between Spain and Argentina fast approaches, data centre and networking sectors are reflecting on the tournament as a whole. What do events like this mean for an ecosystem grappling with rising power demands and capacity strains amid an AI revolution?

Michael Beagan, managing director at TES Power, said a tournament this size is “genuinely unprecedented”. He tells us more about how the live ‘network stress test’ has unfolded during the World Cup and how the data centres and power systems underneath have been tested.

Tracking the World Cup network boom

This World Cup tournament has shaped up to be the longest on record and the first to be staged across three host nations. Every match ran on top of video assistant referees, referee cams, real-time streaming, 5G private networks, distributed fibre and AI driven tools.

Beagan explained how none of these technological feats would have worked without the continuous, high-density power behind it.

“What we were watching is effectively a live, multi-national stress test of digital infrastructure, and the data centres and power systems underneath the tournament are being tested as hard as any player on the pitch,” he said.

Around 1.5 billion people watched the 2022 World Cup final. This tournament, the viewing figures are expected to be much higher. Notably, the first match, US-Paraguay, became the most watched football match ever broadcast in the US, attracting 27.5 million viewers.

“Inside a single stadium, fans consume more than 50TB of data during a match, which is roughly equivalent to streaming HD video continuously for three years,” Beagan highlighted. “Multiply that across 16 venues, plus fan festivals, transport hubs, watch parties and hotels and you get a traffic profile the industry has never had to support at this scale before.”

Growing with digital expectations

But what happens if essential, time-sensitive infrastructure behind an event like this fails? Beagan explained how the impact of something like an outage extends far beyond a single broadcast feed.

“Broadcasters, sponsors, betting platforms, ticketing providers, security teams and billions of streaming fans all depend on data centres running without interruption,” he said. “A single failure in the power chain can affect live broadcast feeds, digital payments, VAR data and crowd management systems at the same time.”

There were some examples of this during the group stages of the tournament, when viewers complained about the Netherlands-Japan game coverage being blurry and low-quality.

“One fan described it as watching on an old rental television from the 1980s!” Beagan noted. “This is a reminder that as audiences grow, so does the expectation of a seamless experience, and the infrastructure has to hold up to that expectation every single time.”

Incidents like this perhaps confirm that power distribution is no longer a background utility during events like this, Beagan goes on to explain, but it has instead become a “strategic enabler” in its own right.

“Global sport now sits on the same mission-critical infrastructure as any other high-demand digital service,” he added. “A modern stadium is really just the visible layer of a much deeper technology stack, sitting on high-density compute environments, cloud platforms and power distribution systems that all must perform continuously under extreme demand.

“Whether it is a football tournament or a critical business application, the underlying requirement is identical: infrastructure that simply does not fail.”

Looking ahead, as the technology landscape continues evolving, speed and resilience have emerged as the two critical priorities, alongside a need for greater supply chain certainty.

Beagan called for data centre builders to accelerate power infrastructure deployments and strengthen the resilience of low-voltage switchgear and power distribution units.

“AI-driven analytics, real-time statistics and increasingly sophisticated broadcasting technology all depend on higher density, more resilient electrical systems,” he noted. “Modular design and factory-built electrical power have a major role to play here, giving organisers and broadcasters a flexible digital infrastructure layer that can be deployed reliably at scale.”

He added: “The organisations that invest properly in resilient, scalable power infrastructure are the ones that will be trusted to support events of this size in future. For a tournament like this, reliable power has become just as fundamental to the fan experience as the players on the pitch or the floodlights above them.”

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