Green Party wants to slam the brakes on UK datacenter construction until water and energy use are sorted

The Green Party of England and Wales wants the government to end the blanket designation of new bit barns as “critical infrastructure” and change planning rules to stop such facilities taking precedence over households for water and energy.

The current UK government designated datacenters as critical national infrastructure (CNI) back in 2024, putting them on the same footing as essential services such as water and power.

This made them eligible for special protection, but may also make it easier for developers to overcome any local objections to their construction, as The Register pointed out.

The Green Party claims that CNI status means that server farms are prioritized for access to water and energy, even when ordinary households are hit with drought restrictions, as over 27 million people currently are in England.

It wants to see planning permission for new facilities granted only when the developer can show it will meet the highest environmental standards, and there has been full community consultation.

“We need to slam the brakes on the rampant building of new datacenters which could put our communities at risk of water shortages and drive up energy bills – and yet are currently being waved through by our government,” said Green Party leader Zack Polanski.

“Data should serve people, not the other way around – but right now, because datacenters are designated as critical infrastructure, people come a poor second, with datacenters even being given priority for water and electricity.” “We need clear criteria to distinguish between datacenters vital to national security or public services, and those that simply serve private tech companies and private profit,” Polanski added.

There was certainly talk earlier this year of prioritizing "strategically important" grid connections, which would include data campuses, and a report published by the London Assembly late last year highlighted the pressure on the power supply in the capital, with some areas of West London having to put a hold on new housing developments.

On the water side, MPs were warned earlier this year that official forecasts of England's future water needs excluded datacenters, despite the growing number of them, and that they could end up competing with homes and businesses for supply.

The Green Party claims that a single large-scale datacenter can use around 1.5 million liters (396,258 US gallons) of water per day, comparable to the daily water needs of a town of around 10,000 people.

Yet bit barn construction is projected to expand rapidly, with growth often concentrated in areas already classified as water-stressed, like London and the South East.

But water consumption can vary, depending on the cooling systems in use at specific facilities.