The UK's water industry is facing a critical challenge as it grapples with the growing demand for water to support the expansion of datacentres, a key component of the government's AI growth plans. The issue is not just about the quantity of water but also the environmental impact and the potential strain on an already stressed water network.
The Water-Data Centre Conundrum
Datacentres, essential for hosting and processing vast amounts of data, require substantial water resources for cooling. This is a double-edged sword: while they are vital for technological advancement, they also contribute to water scarcity in regions already under pressure. The situation is particularly dire in England, where a House of Lords report predicts a 5 billion-litre daily shortfall in public water supplies by 2055.
Water UK, the trade body representing water companies, has raised alarm bells, accusing the government of ignoring the water demands of datacentres in its AI strategies. The organisation's briefing to MPs highlights a startling omission: the government's water forecasts are 'fatally flawed' and fail to account for the water needs of these facilities. This oversight is not just a technical error; it has far-reaching implications for the environment and public water supply.
The Environmental Impact
The concentration of datacentres in water-stressed areas, particularly in the south and east of England, exacerbates the problem. With more than three-quarters of these facilities in these regions, the strain on the water network is immense. Water UK warns that new datacentre growth in these areas may be impossible without significant policy changes, as the network is already under pressure from leakage and demand targets.
The situation is further complicated by the fact that datacentres are currently required to use drinking water exclusively, a practice that Water UK estimates could lead to a daily consumption of 6.6 million litres in England. With the government's ambitious goal of tripling datacentre capacity by 2030, the strain on the water supply will only intensify.
A Call for Clarity and Action
The call for clarity and action is not just coming from the water industry. Greenpeace has highlighted the staggering waste of water through leaky pipes, which is five times more than what a national hosepipe ban would save. This underscores the urgency of the situation and the need for a comprehensive approach to water management.
The government's response, while acknowledging the challenge, has been met with skepticism. The delay in publishing a national policy statement for AI growth and the lack of a drought hierarchy to prioritise sectors in times of water shortages are causing concern. The government's spokesperson's commitment to protect water supplies while unlocking growth is a step in the right direction, but it remains to be seen if these measures will be enough to address the looming water crisis.
The Broader Implications
The issue extends beyond the UK's borders, with similar concerns raised in Ireland over the water usage of datacentres. The designation of datacentres as critical national infrastructure raises questions about the prioritisation of these facilities over households during times of peak water demand. This could lead to a situation where datacentres, designed for wasteful and pointless tasks, are given favourable treatment, while households face water restrictions.
A Call for Sustainable Growth
The UK's water industry is at a crossroads, facing a choice between economic growth and environmental sustainability. The government's AI growth plans must be accompanied by a comprehensive water strategy that addresses the needs of datacentres while ensuring the long-term health of the water network. The time for action is now, as the consequences of inaction could be devastating for both the environment and the economy.
