We are entering an era in which artificial intelligence is rapidly reshaping economies, industries and our daily life. Whatever your view of AI, one fact is clear: none of it works without the physical infrastructure to support it.
Data centres are the engines behind this transformation, and demand for them is accelerating at extraordinary speed. In response, the government has designated many of these developments as Nationally Significant Infrastructure Projects, with more than 100 either planned or already under way. From major schemes in Blyth, Waltham Cross, Leeds and Newport with dozens in London progressing through the planning system, the scale of ambition is immense.
Building data centres today is far from simple. These projects demand large amounts of power, water and land, all of which are under growing pressure. Planning consent can be slow and complex, while grid capacity remains constrained some connections taking up to 15 years.
Even where electricity is available nationally, it cannot always be delivered to the places that need it most. In the US, data centres accounted for 4.1% of peak power demand, a figure expected to rise to 8.5% by 2027. In the UK, demand could require an additional 6.3GW of power and London 180MW this year.
The environmental impact of this could add millions of tonnes of carbon to the atmosphere. We therefore need a more sustainable, low-carbon approach to delivering this infrastructure.
These projects are being delivered against a backdrop of geopolitical uncertainty, supply-chain volatility, inflationary pressure as well as the urgent drive towards net zero.
By 2029, annual investment in these facilities is expected to reach around £10 billion. In short, this is not a conventional delivery challenge. It is a test of how well we can adapt delivery models to be sustainable in a dynamic world.
If we try to deliver these programmes using the same mindset and methods we have always relied on, we risk repeating the same environmental harms.
The real challenge is not simply to build an asset, but to deliver an outcome. That distinction matters. When focus remains fixed only on the physical thing being built, projects can miss the wider need they were meant to serve.
An outcome-based approach keeps attention on the purpose of the investment in all its dimensions: operational, social, economic and as well as the environmental. It creates a framework for making better decisions as circumstances change, helping teams adapt the solution without losing sight of what success looks like.
This is not a theoretical idea. We have successfully used outcome-based delivery across major programmes in multiple sectors and supported its reinforcement by initiatives such as Project 13. One of its greatest strengths is the clarity it gives to every partner involved.
Designers, contractors, operators, utilities, regulators and public bodies can all see how their contribution supports the end result, including its environmental impact. Just as importantly, it makes dependencies visible. Instead of treating issues at the edge of the project as external problems, it recognises them as critical factors in delivery success.
For data centres, those boundary conditions are especially important. Success depends not only on what happens inside the project team, but on coordinated action across councils, regulators, supply chains, neighbouring developments, wider industry and the utilities that generate power.
An outcome-based model enables projects to integrate those relationships, understand where risks and constraints sit, and create the insight to make sound sustainable decisions at pace. In a sector moving as quickly as this one, this ability is not a luxury; it is essential.
If London, and the UK more broadly, are to build sustainable infrastructure needed for long-term prosperity in the age of AI, then we must evolve how we deliver nationally significant projects. That means stronger governance, deeper professional capability and a clear focus on outcomes rather than just outputs.
The prize is not simply more data centres. It is the creation of resilient, future-ready infrastructure that supports growth, innovation, national competitiveness and delivered sustainability.
In a world defined by speed, uncertainty and rising demand, outcome-based delivery may prove to be the difference between building quickly and building wisely for a sustainable future.