The Data Center Squeeze

Data centers look like anonymous warehouses, but they’re the beating heart of the modern economy and they’re starting to collide with the physical world. We dig into the growing “data center problem”: soaring AI and cloud demand, grid connection bottlenecks, and the rising frustration of communities who feel they’re being asked to absorb the costs while big tech captures the upside.

We walk through what data centers actually do for financial services, healthcare systems, logistics, manufacturing, and public administration, then zoom in on where they get built and why. The UK story centers on clusters around London and the Thames Valley, emerging northern hubs, and a growing push toward rural sites when land is cheaper or transmission capacity is available. But that shift creates fresh tension when heat, drought, and water stress make cooling harder to justify, and when planning systems are not designed to weigh electricity, water, and land use together.

Then we unpack the core drivers of public resistance: massive electricity demand and grid upgrades, water consumption that can reach millions of liters per day, visual and land use conflict, local air quality worries from diesel backups, and a persistent feeling that permanent jobs do not match the footprint. We also cover the economics behind the boom, including investment, incentives, infrastructure burdens on utilities and ratepayers, and the uncertainty that makes long range planning so difficult.

If you care about sustainable infrastructure, clean energy, AI growth, and supply chain resilience, this conversation connects the dots. Subscribe, share this with a friend who works in tech or energy, and leave a review with your take: how should communities and governments set the rules for data center growth?

Transcript

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Welcome To Chain Reaction

Tony Hines 0:00

Hello, Tony Hines here. You're listening to Chain Reaction, the number one podcast for supply chain advantage, global trade, and policy. Good to have you along today. Well, data centers. Those big data warehouses we see on the edge of cities or in the countryside. We're gonna find out more about them today.

SPEAKER_00 0:20

Chain Reaction.

Why Data Centers Are A Problem

Tony Hines 0:22

Today I want to talk about the problem of data centers. I'm gonna explain some of the big issues and what's happening with data centers. I've just written an article which you can read on my blog about the problem of data centers, demand, location, community, hostility, the economics of them, and resource use. It's a global narrative, but it's played out in a UK context. And I'm gonna tell you what's happening in the UK. Data centers have become the critical infrastructure of the digital economy, enabling cloud computing, artificial intelligence, financial services, logistics, healthcare, and public administration. Yet their rapid expansion has triggered growing concern among policymakers, environmental regulators, and local communities. The tension is stark. Data centers are essential for national competitiveness, but their resource demands, citing patterns, and environmental impacts increasingly generate public resistance. In my article I examine the problems of data centers through a structured narrative rising demand, what data centers do, where they're located, why communities are becoming hostile, and the economics behind the expansion, and the scale of resources they consume. Evidence is drawn from the UK Parliamentary submissions. Imperial College London gave expert testimony, US regional economic studies, and global energy analysis. All in the mix.

Demand Surge And Grid Queues

Tony Hines 2:08

There's a surge in demand. Demand for data centers is rising at a pace that outstrips existing infrastructure and planning in Great Britain. AI and cloud computing are driving unprecedented large load connection requests, with around 140 data center projects totaling 50 gigawatts currently in the grid connection queue. Of these, 71 projects for 20 gigawatts have reached final investment decisions, indicating imminent construction. Grid connection constraints are becoming a first-order sustainability risk. Off-Gem reports that the UK grid connection queue reached 701 Gigawatts in April 2024, with some connection offers extended into the late 2030s, creating delays that threaten viable projects and distort investment signals. Imperial College London's evidence to Parliament emphasizes that even with strong efficiency gains, total energy use and emissions are likely to rise in the near term, because AI-driven workloads are expanding faster than efficiency improvements can compensate. The United States faces similar pressure. Data centers consumed 4.4% of US electricity in 2023, with projections suggesting this could rise to 6.7% to 12% by 2028. Northern Virginia alone is now the world's largest data center market, with demand growing faster than local utilities can supply.

What Data Centers Actually Enable

Tony Hines 3:50

What do these data centers do? Well, data centers provide the computing power, connectivity, and storage that underpins nearly every digital service. They support AI model training and inference, cloud platforms such as AWS, Azure and Google Cloud, financial transactions and banking, healthcare systems and electronic medical records, logistics, manufacturing and supply chain optimization, and public sector digital services. The Center for Regional Economic Competitiveness describes data centers as enabling infrastructure, comparable to ports, airports and electric grids, whose value lies in the activities they support across the economy.

Where They Get Built And Why

Tony Hines 4:40

So where are these data centres located? Well, the UK has a number of data centres, but they're clustered around London and the Thames Valley due to proximity to financial services and fibre backbones. Slough is one of Europe's largest data centre hubs. Manchester and Leeds are the emerging northern centres, and rural or periurban areas where land and grid capacity are more available. So you might pop up a data center somewhere in the countryside. Well there's not many people around because the land values are low or lower than elsewhere, and you can use that land to develop the data centre. However, grid constraints increasingly push developers towards locations with available transmission capacity, even when these areas faced water stress or lack of local planning support. And that's a big problem with climate change on the horizon, and of course the type of summer that we've just experienced with all the heat and drought. In the United States, the largest clusters are in Northern Virginia, Phoenix, Arizona, Dallas, Atlanta, Columbus, and rural counties offering cheap land plus tax incentives. Counties receiving their first large facility saw private employment rise four to five percent over a five to six year period. It demonstrates the economic pull of these investments.

Why Communities Push Back

Tony Hines 6:14

So why are local communities becoming hostile? It's because despite economic benefits, community hostility is rising across the UK, Europe and the United States because of several factors, and we'll discuss those each in turn. Firstly, there's electricity demand and grid stress. Local communities increasingly question who pays for the grid upgrades required to support massive new loads. Data centers can require hundreds of megawatts, equivalent to small cities. OffGem, the regulator in the UK, warns that non-viable projects clogging the queue distort these investment signals and delay strategic infrastructure upgrades. So there's an impact on everything else, and that's a serious issue. Water consumption water is one of the most contentious issues. Thames Water's evidence shows that a large data center can use four to nineteen million litres of water every day, comparable to 50,000 households. Thames Water supplied nearly 10 billion litres to 140 data centers in its region in 2024. Imperial College notes that water-based cooling can reduce energy use, but risks unintended consequences on local water supply, especially in water-stressed regions. Then there's the land use and visual impact. Data centers are large box-like industrial buildings that often conflict with the local expectations for rural or suburban landscapes. Planning disputes have become emotional, with public meetings turning adversarial and straining civic trust. There's issues of air quality and emissions. Backup diesel generators required for resilience raise concerns about local air pollution. Imperial College warns that increased demand could worsen local air quality if electricity supply cannot be fully decarbonized. Then there's a perception of a lack of local benefits. While construction generates jobs, ongoing operations employ relatively few people. Communities often feel they bear environmental costs without receiving commensurate economic

Economics Incentives And Who Pays

Tony Hines 8:36

benefits. Let's take a look at the economics of data centers, the investment and the local impact. Data centers bring billions in private investment. In Virginia, the industry supports 74,000 permanent jobs, $5.5 billion in labour income, $9.1 billion annually added to gross domestic product. However, much of the impact comes from construction and supply chain activity, not from the long-term operation of the data centers themselves. There are tax incentives and public costs. States and counties often offer tax incentives to attract data center investment. Yet the benefits are thin where communities accept investment figures at face value, and disputes persist over whether incentives outweigh long-term cost, according to CREC in a 2026 report. There are infrastructure burdens. Data centers require new substations, transmission upgrades, water supply expansion, and fiber optic connectivity. These costs are often felt most by utility companies and ratepayers, fueling community resentment. The questions they're asking why are they paying the cost? When it should be the people that want to use the data center that need the data center that should be paying, and that usually means big tech companies. There's market uncertainty. Imperial College highlights that future demand depends on national policy, electricity prices, geopolitical factors, and AI adoption rates. The uncertainty complicates long-term planning and investment decisions.

The Real Resource Footprint

Tony Hines 10:28

The resource data centers consume are of course electricity, the largest input. UK data centers could demand a fivefold increase in electricity by 2030, according to NESO. US data centers consume 4.4% of national electricity in 2023, and it's likely to move upwards, as we've said, to somewhere between 7 and 12% by 2028. Cooling can account for one third of the total energy consumed in some facilities. And water use varies by cooling technology, but the scale is immense, four to nineteen million litres a day for a single large facility, according to a Thames Water Report in 2024, and nearly 10 billion litres supplied to 140 UK data centers in one region. Data centers need a lot of land, the big footprint projects, often 20 to 50 acres per campus, and buffer zones for security and noise. This drives conflict, especially in rural areas. Construction materials and embodied carbon are also an issue. Imperial College noted that data centers could become test beds for low carbon construction, but cost and delivery pressures limit adoption of greener methods.

Policy Gaps And Better Siting

Tony Hines 11:56

Policy and governance challenges. The UK Environmental Order Committee, in their evidence, highlighted several governance gaps. In planning policy, it doesn't adequately address water stress or grid constraints. Mandatory disclosure of energy and water metrics is lacking. Carbon accounting needs to include embodied emissions and 24 7 clean energy matching, and siting requirements need to align with water availability and grid capacity. Then there's waste heat reuse, which they say is underdeveloped, despite clear opportunities. These gaps contribute to community hostility and undermine sustained development.

What Has To Change Next

Tony Hines 12:39

All in all, data centers are indispensable to the digital economy, but their rapid expansion exposes deep tensions between technological progress, environmental sustainability, and community well-being. Electricity demand is rising sharply, water consumption is immense, and grid constraints and communities threaten national infrastructure planning. Communities increasingly resist projects that impose environmental burdens without delivering clear local benefits. The challenge is not simply to build more data centers, but to build them differently, with transparent resource metrics, strategic siting, low carbon construction, and integrated planning across electricity, water, and land use systems. Without such reforms, the problem of data centers will intensify as AI accelerates demand. Well there we are, data centers. All the problems with data centers and all the counter arguments to suggest that they might generate jobs, they could be an economic powerhouse, but they impact communities. And they could do that both in a positive way, but also in a negative way. They could have all the cost without the benefit. And that's what people are currently thinking when they're protesting against the data center in their own area. So the one thing that's certain from the discussion is that those data centers are going to increase because everything relies on those data centers to transmit, to store and distribute digital data. And it's big business. I'm Tony Hines, I'm signing off. I'll see you in the next podcast when I hope we've got something just as interesting to talk about. And as you know, everything I discuss is related to supply chains. And data centers might sound like big technology, but they are obviously a supply chain issue because that's what supply chains run on these days. They run on AI and on data centers. Bye for now.