London's data centers are a growing concern, with their energy consumption posing a significant challenge to the city's housing crisis. The report highlights a critical issue: these data centers demand an astonishing amount of electricity, equivalent to the needs of 750,000 homes. This is a pressing problem, especially as the demand for data centers continues to surge at an unprecedented rate. The report, commissioned by the Greater London Authority and produced by Buro Happold, reveals a stark reality. London's 99 data centers consume a staggering 760MW of power at peak demand, which is a staggering three-quarters of a million homes' worth of energy. This is a major issue, as it directly impacts the city's ability to provide housing for its residents. The pressure on London's energy infrastructure is immense, with the grid connection queue already exceeding the current capacity by a factor of 10. This means that to power all the planned data centers, we would need the equivalent of 7.5 million homes' worth of electricity. The situation is dire, and it's not just about the energy consumption. The report also warns of a potential water supply crisis. If data center growth outpaces forecasts, there won't be enough potable water to meet the needs of both new residential housing and these data centers. This raises a deeper question: how can we balance the demands of data centers with the essential need for housing and water? The issue is further complicated by the high land costs and intense competition for grid connections. London's industrial land vacancy rate is a mere 3.9%, making it challenging to find suitable plots for data centers, especially in inner London and Zone 2/3. This scarcity of land could push new data center development towards the city's edges, potentially exacerbating the housing crisis in those areas. The situation is a complex one, and it requires a holistic approach. As Donald Campbell, director of advocacy at Foxglove, emphasizes, the costs of data centers should be borne by the wealthy Big Tech companies, not Londoners or the planet. The mayor, Sadiq Khan, acknowledges the critical nature of data centers as infrastructure but also emphasizes the need for coordinated planning to meet their energy demands alongside housing plans. The city is at a critical juncture, where energy capacity becomes a real constraint on both housing delivery and economic growth. London already struggles with some of the worst housing waiting lists in the country, with around 340,000 households waiting for social housing and approximately 183,000 Londoners currently homeless. The challenge is to find a balance between the demands of data centers and the urgent need for housing. While the GLA and National Grid have pledged investments to upgrade London's energy network, the question remains: how can we ensure that data center expansion doesn't come at the expense of housing? The climate credentials of green data centers are also under scrutiny. Oliver Hayes, from Global Action Plan, points out that data centers are being built faster than wind and solar, leading to increased reliance on fossil fuels. This raises concerns about London's air and climate, as many developers want to power data centers by burning gas on-site. The way forward is clear: a holistic approach is essential, rooted in the imperative of slashing climate pollution and meeting Londoners' fundamental needs. This means saying no to many data centers, even if they are keen to cash in on the AI goldrush. It's a delicate balance, and London must make tough decisions to ensure a sustainable future for its residents and the planet.
