Dan Evets, Vice President at ALICE Technologies, explains why even minor delays to data centre upgrade programmes can have significant financial consequences – and why operators need a more resilient approach to retrofit planning.

In the data centre sector, a completed facility is not the end of the construction story. The pace of innovation in server technology, cooling infrastructure, and energy storage means that even brand-new sites may need upgrading within just a few years.

As performance expectations rise and workloads increase, operators can find themselves in a near-permanent upgrade cycle. And when those retrofits fall behind schedule, the cost implications can be substantial.

Delays can quickly erode margins. On large-scale data centre projects, even a single day lost can translate into millions of pounds in lost revenue opportunity.

This reflects the commercial pressure data centre owners are now under. These are not isolated, one-off construction jobs. They are long-term programmes of upgrades, enhancements, and reconfigurations, often running across multiple live sites at once. When one slips, the effects can spread quickly. It can mean late-stage changes, unplanned outages, or contractual consequences that undermine expected returns.

Why delays are so hard to absorb

Data centre retrofits are fundamentally different from new builds. They often need to move faster, and schedules are typically far less forgiving. Upgrade projects must fit around existing operations, so work is commonly carried out in restricted environments to increasingly tight deadlines.

Many retrofits are still planned using tools and processes that were not designed for this level of complexity. And when changes or delays strike, as they often do, project teams can be left working through knock-on effects without clear visibility into the full impact of each decision.

In an environment where every day matters, that creates significant risk.

Some developers are taking a different approach. Rather than relying on a static plan, they are exploring ways to test different delivery strategies before committing to a final sequence. These approaches can account for real-world constraints, such as equipment lead times or extreme weather, and help teams assess which construction paths are likely to be more resilient to disruption.

By testing different scenarios in advance, owners and contractors can make faster, more informed decisions. They can also adapt more effectively mid-project, reshuffling tasks to keep schedules on track without necessarily increasing cost or complexity.

Learning from one upgrade to the next

As the volume of retrofit work increases, many operators are managing multiple projects simultaneously. The technical scope of each might vary, but the pattern of work – such as power and technology upgrades, cooling changes, and rack reconfigurations – is often repeated. This presents a valuable opportunity.

By reviewing outcomes from past retrofits, owners can start to build more consistency into their programmes. If one project identified a trade handover as a source of delay, the next can test an improved sequence in advance. Adjusting only for site-specific constraints, teams can avoid reinventing the wheel and instead build a repeatable upgrade strategy that becomes faster and more reliable over time.

It also means owners are better prepared when things go wrong. In many cases, general contractors will look to owners for direction during a delay. Without a clear path forward, those owners must make quick, high-stakes decisions that often rely on limited information.

Technology can help shift this dynamic. With better scenario planning and clearer visibility into likely time and cost implications, owners can evaluate different responses before choosing the best course of action. This supports more confident, data-led decision-making while helping contractors maintain progress and protecting project margins.

The growing pressure to deliver faster

Retrofits have always been part of the data centre lifecycle, but they are now under increasing scrutiny. With operators racing to meet new demand across Europe and North America, the pressure to upgrade and expand existing sites is intensifying.

Meanwhile, constraints continue to mount. Skilled labour remains in short supply. Power grid limitations are placing more emphasis on backup and off-grid solutions, which add further complexity.

In this environment, delays do not just cost money. They can also affect longer-term competitiveness. When demand is this high, delivering capacity on time becomes a clear advantage. Falling behind can leave operators at risk of losing market share or struggling to meet customer commitments.

Most people in this space understand how to build. The challenge now is how to upgrade quickly, flexibly, and without losing time when things go wrong.