Data Centres – Opportunities and challenges in delivering critical infrastructure

The global economy stands at a pivotal moment in the evolution of its digital infrastructure. The question is, will the UK be at the forefront of change, or will we be left to fall behind?

As artificial intelligence (AI), cloud computing, and data-intensive services reshape the global economy, data centres have emerged as the backbone of this transformation. The centrality of this relatively new form of development to the UK’s ‘digital revolution’ is reflected by the fact that the Government classified data centres as Critical National Infrastructure in late 2024, putting these developments in the same category as energy generation and utilities.

The question, it seems, is therefore no longer whether demand exists for this type of development – there is clearly a desire nationally to see this infrastructure come forward. Instead, the question we need to pose is how we can best capitalise on the opportunity to expand capacity whilst navigating the constraints and strategic complexities that will likely accompany rapid growth.

And what are the challenges to delivering this critical infrastructure which needs to sit alongside existing communities and draw from the same resources?

The economic case for expansion of data centres is clear. A report by techUK on how data centres can supercharge UK Economic Growth found that the sector is already contributing £4.7 billion GVA to the UK economy, has created over 43,000 jobs and has generated £640 million in tax revenue for the exchequer. It is also estimated that if the development of data centres can increase beyond current rates, there is the potential to add a further £44 billion in GVA to the UK economy, create an additional 40,000 jobs and boost tax revenue by nearly £10 billion between 2025 and 2035.

It’s also important to note that we’re not starting from scratch. The UK is also already in a strong position to establish itself as Europe’s leading data centre hub. As of January 2026, London was identified as accounting for 80% of operational capacity of data centres in Europe. This readiness, and demonstration of a model which works, strengthens the investment case for the UK. Equally, even though London has established dominance, there are emerging regional clusters in the North West and South Wales which highlight potential for growth elsewhere, supporting investment and jobs across the UK more widely – dare one say ‘levelling up’? For regional economies, date centres therefore represent a meaningful opportunity to attract investment and support regeneration.

In today’s economic climate, where the government is scrambling to show green shoots of economic growth, the rapid expansion of data centre infrastructure could form an important part of the roadmap to meaningful growth.

Data centres are also likely to play an increasingly important role in maintaining our national security. Expanding this critical digital infrastructure will help to build the UK’s resilience, and ensure we are able to offer a hub for AI pioneers. This will, over time, reduce the threat of parts of our economy being ‘shut down’ by superpowers like the US and China, both of whom are widely considered to be ‘running away’ with the AI economy. For political anoraks like me, Rory Stewart sets out the case for embracing AI and data centre infrastructure in the interests of national security far more eloquently than I could on a recent episode of The Rest is Politics podcast – well worth a listen amongst other discussions on net zero and wider geo-political events.

Constraints facing the rapid expansion of data centre infrastructure are, however, substantial. Chief among them is energy. Data centres are highly energy-intensive, placing an even greater demand on the sources of electricity which we are already building in order to meet the transition to a fossil fuel free future. A recent debate in the House of Lords highlighted that data centres currently use around 2.5% of the UK’s electricity, with demand expected to increase fourfold up to 2030 according to NESO, or potentially more according to other sources. How we sustainably power these energy-hungry projects will undoubtedly determine the growth of the sector in coming years.

Access to the electricity grid is also a major bottleneck. Even if the UK is able to build up an energy system which is able to sufficiently meet the power needs of a rapidly expanded network of data centres, ensuring that these critical infrastructure projects can secure a connection to the national grid remains uncertain and slow. As with all investment, uncertainty and delay can shift priorities, and mean that the UK misses out.

There are also the underlying sustainability concerns. As we have seen the proliferation of data centre projects across the UK, scrutiny of their underlying impacts has intensified. If the UK is to truly embrace the infrastructure required to facilitate the ‘digital revolution’, the sector needs to do more to demonstrate how issues around water-intensive cooling systems, land use and wider environmental footprint, can be adequately mitigated or, where possible, used to deliver genuine benefit for communities around these projects.

A growing number of ‘Private Wire’ applications are looking to plug local renewable energy generating assets into Data Centres to reduce reliance on the Grid, and the fluctuations in global energy prices. It makes sense. However, there is a need to bring communities on this journey too. This will require ‘myth-busting’ around data centre projects, as well as robust communication of the role they will play in a positive vision for growth locally, regionally and nationally, and how this positions the UK as a leading force in the development of AI and other data-intensive services.

It would be somewhat of a clumsy metaphor to compare data centres to the industrial plants and mills of the 18th and 19th centuries which drove the UK’s industrial revolution – however there are broad similarities to be drawn of the two. If the UK is to maximise the economic benefits of the paradigm shift in the global economy, securing investment, economic growth and job creation, there is no doubt that we have to significantly increase data centre capacity in the UK, and do so quickly.

However, whilst the opportunity provided by data centres may indeed be too good to miss, our ability to harness the benefits associated with this rapidly growing sector will undoubtedly be defined by our ability to overcome fundamental challenges around infrastructure and sustainability. Those projects which are able to secure reliable sources of power, can successfully navigate planning, and can demonstrate environmentally-efficient operations, will undeniably be best placed to succeed in this critical and fast-growing sector.