The UK's data centre policy is currently being shaped by demand figures that often lack robust verification, according to analysis by Resultsense1. This situation is influencing significant political and infrastructure decisions, highlighting a need for rigorous examination of the underlying data.
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Policy debates surrounding UK data centres frequently cite statistics on energy consumption and future demand. However, a closer look reveals that these figures, while widely quoted, may not always be based on verified projections.
Deconstructing the "soft numbers" driving policy
Key statistics, such as data centres consuming about 2.5% of the UK’s electricity and this figure potentially quadrupling by 2030, are often presented as established facts. Similarly, reports on grid connection requests for data centres vary wildly, with figures such as 73 GW or 125 GW being cited. These discrepancies highlight a need for greater scrutiny of the data driving policy. Resultsense analysis suggests that these "soft" numbers are influencing major political decisions, advising organisations to plan with optionality and source discipline.
The origin of key energy consumption statistics
The widely cited figure that data centres currently use about 2.5% of the UK’s electricity, with consumption expected to rise four-fold by 2030, originated from a parliamentary inquiry launch statement. Dame Chi Onwurah, Chair of the Science, Innovation and Technology Committee, used this as a framing question for an inquiry into low-energy computing, rather than presenting it as a verified projection. The committee's inquiry, launched in April 2026, aims to investigate the energy trajectory of computing.
The UK government has taken a firm position on data centre development, rejecting calls for a moratorium and emphasising their strategic importance.
Rejecting a moratorium: prioritising jobs and security
The government has rejected calls for a pause in data centre construction, stating that such a move "would be a disaster for jobs and national security". This stance was reiterated in August 2026, following calls from Green Party leader Zack Polanski to halt the building of large AI data centres.
The critical national infrastructure debate
Labour has given the data centre sector critical national infrastructure (CNI) status. This classification places them on an equal footing with essential services like water, energy, and emergency services. However, this designation has sparked debate. Green Party leader Zack Polanski called the CNI status "outrageous," arguing that "to most people critical infrastructure means hospitals, water, electricity. It doesn’t mean artificial intelligence".
The rapid growth of data centres, particularly those supporting AI, has exposed significant challenges within the UK's energy grid.
Wildly varying grid connection figures and their implications
The demand for electricity connections from data centres has surged, leading to widely varying figures for grid connection requests. Ofgem's grid connection data has appeared in different forms, with reports citing 73 GW or 125 GW. Resultsense notes that these are not the same measure; one counts data centres in the connection queue, while the other counts the whole queue and identifies data centres as a subset. Britain's most-quoted data centre demand statistic is either 73 GW or 125 GW, depending on the source. For context, Britain's entire peak electricity demand is around 45 GW. These figures highlight the immense pressure on the grid. Ofgem has launched a consultation to introduce measures, such as refundable deposits, to ensure scarce capacity goes to "projects most likely to be built, not projects preserving options".
Moving beyond the "use less" mentality for digital growth
The prevailing narrative often focuses on limiting data centre growth due to energy constraints, echoing a "use less" mentality. However, this approach risks stifling technological and economic advancement. The Science, Innovation and Technology Committee's inquiry into low-energy computing explores how to manage the rising energy demands from AI. The challenge is not merely about efficiency within existing limits, but about expanding the energy system to meet future demands without compromise.
To truly support the UK's digital ambitions, including the growth of AI and data centres, a fundamental shift in energy strategy is required, moving towards abundance rather than managing scarcity.
The imperative for grid modernisation and increased generation
Meeting the escalating energy demands of digital infrastructure necessitates significant investment in grid modernisation and increased generation capacity. This growth requires deploying new renewable and low-carbon generation. The debate should not be framed as data centres versus the grid; instead, the UK's AI ambitions and energy ambitions are intertwined, requiring parallel development of both digital and energy infrastructure. By focusing on building an energy system with "power to play with," the UK can support its digital future without being constrained by outdated notions of scarcity.
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References
- Resultsense. UK Data Centre Policy Contested Demand Numbers
