UK Rejects Green Party Call to Halt AI Datacentre Construction

The UK government has rejected a proposal from Green Party leader Zack Polanski to impose a moratorium on major AI datacentre construction, setting up a clash over infrastructure priorities as the country faces one of its worst droughts in years.

Polanski called for authorities to "slam the brakes on these energy-guzzling, water-guzzling datacentres," proposing a pause on all but local-scale facilities serving community needs. The government responded that such a moratorium "would be a disaster for jobs and national security," according to reporting first published by The Guardian.

Resource demands driving concern

The debate comes as datacentres currently consume approximately 2.5% of the UK's electricity supply, with projections showing that figure could quadruple to 10% by 2030. These facilities house the processing chips that handle billions of AI queries daily, infrastructure that Labour has designated as critical to national interests.

Polanski criticized that designation as "outrageous," arguing that critical infrastructure should mean hospitals, water, and electricity rather than artificial intelligence. "Right now the government is putting our communities, our water security and our climate ambitions second to the demands of tech giants," he said.

A government spokesperson countered that pausing construction would "simply send investment and good jobs abroad, while leaving Britain dependent on overseas computing for the processing of sensitive health and defence data." The spokesperson clarified that critical infrastructure status does not grant datacentres priority access to water or electricity, nor does it place them ahead of households during shortages. In England, datacentre water usage represents less than 1% of non-household consumption.

Political momentum building

Datacentre policy is emerging as a significant political issue beyond Westminster. In Scotland, the SNP government appears to be moving toward a moratorium amid voter pressure, while local disputes have erupted across England and Wales. Residents in Devon, Buckinghamshire, Cardiff, and Fife have raised concerns about noise, heat, traffic, visual impact, and potential effects on property values.

AI Minister Kanishka Narayan has framed datacentre expansion as essential to defense capabilities, arguing this month that the British public "doesn't just want foreign billionaires to own things that matter to our lives" and that achieving sovereignty requires building domestic capacity.

The government maintains its position does not constitute "a blank cheque for big tech or that every datacentre should be approved." Officials said developers should prioritize clean power, responsible water use, British jobs and supply chains, and community investment.

Climate concerns persist

Campaign group Foxglove warned of a potential "deeply alarming backward step on climate action" as some developers consider building gas-fired power stations to bypass long grid connection wait times. Co-executive director Rosa Curling said that without urgent action, "the public and the planet will be left to foot the bill for the environmental and social costs of these energy-hungry giants."

Why it matters

This dispute reveals the tension between AI infrastructure ambitions and environmental constraints that governments worldwide must navigate. As AI computing demands surge, countries face difficult tradeoffs between technological sovereignty, economic development, and climate commitments—particularly during resource scarcity events like droughts. The UK's approach may signal how other nations balance these competing priorities.

These details were first reported by The Guardian.