{"id":26275,"date":"2026-04-14T16:39:36","date_gmt":"2026-04-14T15:39:36","guid":{"rendered":"https:\/\/www.onnecgroup.com\/?p=26275"},"modified":"2026-04-14T16:42:38","modified_gmt":"2026-04-14T15:42:38","slug":"why-prefabrication-matters","status":"publish","type":"post","link":"https:\/\/www.onnecgroup.com\/en-US\/2026\/04\/14\/why-prefabrication-matters\/","title":{"rendered":"Building Data Centres at AI Speed: Why Prefabrication Matters"},"content":{"rendered":"\n
\"\"<\/span>
\n

<\/p>\n<\/div><\/div>\n\n\n\n

<\/div>\n\n\n\n

Building Data Centres at AI Speed: Why Prefabrication Matters<\/strong><\/strong><\/h1>\n\n\n\n
<\/div>\n\n\n\n

The AI boom has ignited a new kind of pressure in the UK data centre market. Hyperscalers, cloud providers and \u201cneo-AI\u201d operators are racing to build faster than ever before, driving unprecedented demand for cabling, power and cooling. The result is an industry sprinting at full speed, with aggressive timelines and unrelenting pressure to create capacity.<\/p>\n\n\n\n

According to recent data, Europe\u2019s built data\u2011centre capacity currently sits around 10.37\u202fGW, with<\/a> forecasts indicating it will more than double to over 17GW by 2030<\/a>. Yet lead times remain stubbornly tight. As AI workloads surge, operators are searching for every advantage that helps them deliver more, faster, and with absolute reliability.<\/p>\n\n\n\n

Prefabrication is emerging as a key solution. Often associated with large modular builds, its principles \u2013 such as pre-terminated cabling, rack systems, and containment solutions \u2013 can also transform network infrastructure deployment. By leveraging prefabricated assembly\u2019s organisations can achieve faster installation, improved quality assurance, and reduced on-site risk. This approach enhances delivery certainty, supports scalability, and accelerates time-to-service across both new and existing data centre environments<\/a>. However full prefabrication can only be achieved through complete BIM collaboration between all disciplines and a frozen, agreed design before commencement. Any late design changes can make pre-built assemblies obsolete.<\/p>\n\n\n\n

<\/div>\n\n\n\n

Rethinking data centre construction<\/strong><\/h4>\n\n\n\n

While the benefits of prefabrication are increasingly recognised, its greatest impact lies in how it transforms the construction process itself. Instead of unpacking and assembling thousands of individual components on a crowded, dusty site, critical elements are prepared off-site in controlled conditions, much like a data centre\u2019s own production line. Tasks such as opening boxes of cables, fibre cassettes, and enclosures are replaced by efficient work within dedicated prefabrication facilities, where racks are assembled, preloaded, labelled, and delivered to site ready for immediate installation. This approach places greater emphasis on logistical planning, including delivery sequencing, lifting plans, site access, and careful packaging and labelling.<\/p>\n\n\n\n

Equally important are dimensional accuracy and tolerance management; for example, prefabricated fibre assemblies must be ordered to precise lengths, as any deviation can cause significant constraints to containment systems\u2014too long creates excess, but too short can be far more problematic.<\/p>\n\n\n\n

By shifting complexity upstream, prefabrication not only accelerates deployment but also brings predictability and repeatable quality across multiple builds. It allows teams to focus on integration and commissioning rather than assembly. In projects where network infrastructure sits on the critical path to go-live, every day saved can make the difference between meeting delivery milestones or falling behind\u2014making prefabrication not just a technical choice, but a strategic advantage.<\/p>\n\n\n\n

<\/div>\n\n\n\n

The cost of late engagement<\/strong><\/h4>\n\n\n\n

Despite its clear advantages, prefabrication is often considered too late in the data centre build process. Connectivity partners are frequently engaged only after designs are finalised, limiting opportunities to prefabrication solutions. Engaging these partners earlier enables constructability studies that identify integration challenges, optimize designs for delivery, and ensure that prefabrication and connectivity requirements are aligned from the outset.<\/p>\n\n\n\n

When this happens, the impact is felt across the build:<\/p>\n\n\n\n