The world is waking up to the energy-intensive nature of our digital age, and the strain on power grids is becoming increasingly apparent. Datacentres, the vast warehouses of microchips that power our AI and internet, are consuming a staggering amount of electricity, with the UK and US leading the charge. A recent study reveals that these data centers are using 6% of the electricity supply in the UK and US, a figure that has risen 15% worldwide in the past two years. This equates to nearly 1% of the global economy, with annual investment in datacentres approaching a trillion dollars. The situation is particularly dire in the UK, where energy shortages are exacerbating the issue, and developers are facing lengthy waits for grid connections. The IDCA, an industry association, warns that this rising power usage is sparking societal and political concerns, and calls for tech companies to be more transparent about their plans for new datacentres to address community frustration. The Guardian recently reported that Google developers misstated the carbon emissions of proposed UK datacentres, highlighting the need for accurate information and accountability. The IDCA's research concludes that significant community and political pushback occurs when a nation's datacentre footprint reaches 5% of its national grid consumption. The UK, with 5.9% of its electricity used by datacentres, and the US, at 6%, are well above the global average of 2%. This is a cause for concern, especially in countries like Singapore and Lithuania, where datacentres consume 19% and 11% of their national grid energy, respectively. Greenpeace UK warns of the unchecked AI boom's potential consequences, including higher energy bills, increased stress on water supplies, and a renewed reliance on fossil fuels. Doug Parr, the campaign group's chief scientist, calls for more transparency, proper environmental impact assessments, and a ban on new polluting plants to power AI. The scale of the issue is immense, with an estimated 10,000 datacentres worldwide, including Microsoft's massive Mount Pleasant datacentre in Wisconsin, billed as the world's most powerful. The IDCA's figures align with the International Energy Agency's estimates, which show a 17% rise in energy use in 2025, outpacing global electricity demand growth. A concerning detail is the 13% of US datacentre consumption from unused 'zombie' services, wasting over 3GW of power. This inefficiency is presumed to be a global issue, increasing with the rise of cloud computing. The report also highlights a new military threat to datacentres, emphasizing the need for comprehensive security strategies as these facilities are now considered critical infrastructure. As we navigate the digital revolution, it is crucial to address the energy demands of datacentres and ensure a sustainable future. The implications of this growing energy consumption are far-reaching, impacting not only our environment but also our economy and national security. It is time for a comprehensive re-evaluation of our approach to datacentre development and energy usage.
