The UK is home to over 500 operational data centres, with a combined footprint of around 1.6GW, and government projections suggest capacity could more than triple by 2030. However, this buildout is facing increasing opposition from residents and politicians, with nearly two-thirds of Americans opposed to a data centre being built in their community. The debate centres on whether the economic benefits of data centres outweigh their environmental and social costs.
Data centres are large warehouses packed with computers and other IT infrastructure, processing and storing data for various industries, including finance, healthcare, and entertainment. The advent of generative AI has increased demand for data centres, with tech companies racing to build more facilities and governments competing for their investment. Industry body techUK estimates that UK data centres contribute £4.7 billion in gross value added to the economy each year.
However, think tanks are sceptical of some industry-produced figures, including techUK's projection of 40,000 new jobs by 2035. Environmental think tank Verdant predicts that planned data centres will directly employ just 10,400 workers, around a quarter of that figure, with many jobs being short-term contractor roles. Roa Powell, who works on AI sovereignty at the think tank IPPR, argues that the government should focus on "baseline resilience" rather than jobs and regional growth.
Powell defines "baseline resilience" as security and self-sufficiency, particularly for public sector sensitive workloads and everyday use. She notes that having data centres in the UK means data stays subject to UK law and protections, reducing reliance on US data centres and the risks associated with foreign control. The government has designated data infrastructure as Critical National Infrastructure, reflecting the potential risks to NHS services and the wider economy.
Despite the economic and security arguments, data centres have significant environmental costs, including high electricity usage. London's data centres use 750,000 homes' worth of electricity, exacerbating the housing crisis and concerns about energy consumption. The industry's growth is also driving up demand for fossil fuels, which still provide over 60% of global electricity generation.
As the debate over data centres continues, local communities are organising against new developments, citing concerns about the environmental and social impacts. The government faces a dilemma between promoting economic growth and addressing public concerns about data centres. Powell argues that the UK needs to consider its own AI sovereignty and develop a strategy for self-sufficiency in data infrastructure.
The issue of data centres has become a test of the UK government's commitment to environmental sustainability and social responsibility. With the buildout of data centres accelerating, the government must balance competing interests and develop a coherent policy that addresses the concerns of all stakeholders. The outcome will have significant implications for the UK's digital economy, energy consumption, and national security.
Key points
- The UK government is pushing for more data centres despite public opposition, citing economic benefits and national security.
- Critics argue that the industry's job and growth claims are exaggerated, and that data centres have significant environmental costs.
- The debate centres on whether the economic benefits of data centres outweigh their environmental and social costs.
