The Cloud’s Tangible Footprint: Rethinking Regenerative Data Centres
By Giambattista Brizzi, Chair of Living Future Europe TAG, co-authored by Teodoro Maiorano, TAG and Federico Cascavilla, TAG | 28 July 2025
We like to think of the data cloud as an intangible realm – lines of code drifting effortlessly above us. Yet behind every email, every streamed playlist and every AI query lies a vast, humming complex of steel and servers. Data centres, the bedrock of our digital lives, are anything but insubstantial. As our appetite for online services swells, these sprawling facilities impose growing demands on energy, water and local communities.
Data centres consume a vast amount of energy all day, every day, and need constant cooling. They already account for approximately 1.5 per cent of global electricity use, and that share is on course to double by 2030 under current projections. This is approximately 55% more electricity than the whole of the UK’s consumption.
In practical terms, an AI-focused installation can guzzle as much power as 100,000 households, while in places such as Ireland, a single centre may consume one-fifth of all metered electricity, triggering grid congestion and stalling new renewable projects. Cooling these server farms – often by pumping vast quantities of water through evaporative systems – compounds the strain, drawing billions of litres annually and pitting tech infrastructure against agriculture and municipal supplies in regions already grappling with water scarcity. And it doesn’t stop there: almost all the electricity that fuels servers ends up as waste heat, expelled into the atmosphere, while hardware manufacturing and disposal generate significant additional carbon emissions and electronic waste.
Why “Less Bad” Isn’t Good Enough
Incremental efficiency measures – more efficient racks, improved Power Usage Effectiveness (PUE), occasional use of renewables – have their place. But in an era of exponential data growth, we need a radical shift from merely reducing harm towards actively creating benefit. A regenerative mindset calls on data centres not simply to minimise their footprint but to become productive members of their ecosystems: restoring resources, enriching communities and bolstering resilience.
From Isolated Monoliths to Urban Assets
Traditional practice has been to site data centres on the outskirts of towns, hidden behind security fences. A regenerative approach flips this script.
Imagine server halls embedded within the urban fabric, their excess heat piped into district-heating schemes that warm homes and businesses. Picture rooftops bristling with solar panels, façades clad in air-cooled chillers that harness ambient temperatures, and rainwater harvesting systems that supply every drop needed for non-potable cooling. Microgrids could orchestrate on-site renewables alongside off-site Power Purchase Agreements, allowing centres to modulate demand in concert with wind and solar output.
Regenerative design also demands a materials overhaul. Servers and structural components would be designed for disassembly, prioritising 100 per cent recyclability and non-toxic substances. Transparent labelling schemes reveal hidden pollutants, while refurbishment programmes extend hardware life, slashing electronic waste. On the water side, closed-loop cooling recycles every drop, supported by greywater reuse and even water-positive commitments that replenish local aquifers or fund watershed restoration.
Some pioneers are already charting this course. Microsoft’s 2024 “zero water” data-centre pilot in Phoenix employs chip-level liquid cooling in a sealed loop, avoiding over 125 million litres of water loss per facility each year. In Stockholm, Data Parks integrates waste heat from more than 20 centres into the city’s heating grid, supplying roughly 1.5 per cent of its demand. Sweden’s EcoDataCenter runs entirely on renewables, uses cross-laminated timber to cut embodied carbon and delivers heat to local industries. And in Berlin, a new Virtus campus rises beside an onshore wind farm, aiming for net-zero emissions by 2030.
At the 2025 Venice Biennale, Grimshaw Architects unveiled a striking proposal that repositions data centres from peripheral utilities to the very heart of urban renewal. Their masterplan embeds a data centre within a mixed-use district alongside homes, retail units and even an urban farm. All services—power, water, heat—circulate through local infrastructure loops: waste heat warms neighbouring buildings, harvested rainwater feeds cooling systems, and on-site renewables offset grid demand. Although Grimshaw acknowledges technical and regulatory hurdles, their concept powerfully demonstrates how data centres can be transformed into visible, beneficial community assets that advance climate goals by reusing energy, water and heat, reducing dependence on external resources, and fostering a resilient neighbourhood ecosystem.
Rethinking Data Centres Towards a Regenerative Approach
The path to truly regenerative data centres lies in treating them not as faceless, isolated monoliths but as dynamic partners woven into the fabric of our cities. By capturing waste heat to warm homes, recycling every drop of cooling water, and generating clean power on-site, these centres can replenish resources rather than deplete them. As global demand for digital services continues to grow exponentially, failing to rethink data centre design risks locking in decades of unsustainable energy and resource use. Achieving this vision requires bold collaboration across technology, design, policy and community, but the payoff is transformative: resilient infrastructure that supports both digital innovation and environmental stewardship.
As our collective reliance on digital infrastructure intensifies, the imperative to rethink data centres is not only technical but profoundly ethical. This opening article marks the beginning of a deeper inquiry by the LFE TAG into the regenerative design potential of data centres.
In the second instalment, the TAG will explore emerging best practices the third article will offer a call to action.
The articles will be published on our website and announced in our newsletter. Not yet subscribed to our newsletter? Sign up now!
