The buildings behind everything

A data centre is a secure shed full of servers. Google searches, banking, Netflix all run inside one, and there are roughly 11,000 to 12,000 large ones worldwide, mostly in the US.

Older than the internet

IBM traces them to 1940s server rooms. What changed is scale: the internet, cloud computing and now AI pushed demand toward giant "hyperscale" sites.

What is actually inside

Servers, networking kit, serious cooling so the machines do not cook themselves, and power infrastructure: substations, back-up generators, batteries.

Hyperscale is a real threshold

IDC's bar is 5,000 servers, 10,000 square feet and more than 100MW. A 3,750-server facility is no longer considered large. The biggest hold hundreds of thousands of servers across hundreds of acres.

The techlash misread

Coverage blames distrust of Big Tech and job fears, and Pew found most Americans are more concerned than excited about AI in daily life. That is not what drives the opposition.

It is the utility bill

In a Fox News poll, 75% opposed a local data centre over energy use, utility and water bills, construction and traffic. Only 11% pointed at AI itself.

“Just 11% pointed to AI itself.”

Five hundred counties said no

More than 500 US counties and municipalities have passed bans or moratoriums, and dozens of proposed projects have simply been abandoned.

A hundred and thirty billion stalled

Data Centre Watch says grassroots groups blocked or delayed at least 75 projects worth about $130 billion in the first three months of 2026, nearly matching the $156 billion disrupted across all of 2025.

Politicians flipped fast

Texas governor Greg Abbott once sold his state as the epicentre of AI development. Facing re-election, he said data centres had overreached. Trump went the other way, hard.

“If we kill the golden goose, you will only have yourselves to blame.”

The myths worth checking

A mid-sized centre uses about as much water as two golf courses, less if it recycles. On power, extra demand spreads fixed grid costs over more kilowatt-hours sold.

“It is not to ration inputs according to the arbitrary judgment of scolds.”

Britain's slow lane

The UK has 450 large data centres, critical national infrastructure status and five AI Growth Zones worth £28.2 billion. Its biggest site is 148MW near Cardiff, while the UAE and Japan pull ahead.

“In Britain, we can force £100 million to be spent on a bat tunnel; imagine what our planning system will do with a gigawatt campus.”