Sub-system
The building is rarely the hard part. Data-centre schedules are set by electrical equipment with delivery times measured in years, by the availability of skilled trades, and by how much of the work can be moved off site into a factory.
In one sentence
Data-centre construction covers the design, procurement and building of a facility, in which the critical path typically runs through long-lead electrical and mechanical equipment rather than through structural work.
The sequence is unusual. Procurement of the largest electrical equipment begins before the design is finished, because ordering a transformer late means the building waits for it. Operators place speculative orders to hold delivery slots, and equipment availability shapes the design rather than the other way around.
Labour is the second constraint. A large project needs electricians and mechanical trades in numbers that regional markets cannot always supply, particularly where several projects are building simultaneously. That is a genuine limit on how much capacity a region can add in a year, independent of capital or equipment.
Skids, power modules and even complete cooling plants are increasingly assembled in factories and delivered to site. This moves work from a constrained site to a controlled environment, compresses the schedule, improves consistency and reduces the peak trade headcount needed. It requires design standardisation, which suits operators building many similar facilities.
Large campuses are built and energised in phases, with each phase brought into service as power and equipment allow. That matches revenue to spend and matches capacity to whatever the interconnection can actually deliver at each stage — which is why announced campus capacity and operating capacity differ so much.
Before a facility takes load, its power and cooling systems are tested under simulated load, including failure scenarios. This takes weeks to months and regularly finds problems. It sits on the critical path and is the last thing between a finished building and a working one.
2 of these are marked as a chokepoint: a handful of qualified suppliers, a multi-year lead time, or a single geography.
The classic long-lead items, ordered first and frequently determining the completion date.
TransformersA real regional constraint on how many projects can be built at once, independent of money.
Mechanical plant has its own extended lead times and is ordered on the same speculative basis as electrical gear.
Chillers and air handlersWhere the connection lands after the building does, temporary generation is what allows commissioning and first revenue to start on the planned date.
On-site generationSpeculative equipment slots and standardised prefabricated designs are only ordered against a signed lease or an internal build programme; without one the procurement that sets the schedule does not begin.
Colocation and hyperscaleOther pages in this map that name Construction as something they cannot do without.
What each company supplies at this step, and — where a public figure exists — its share of this specific market — with what that share measures, the period it covers and who published it. Some rows also show the company’s own reported revenue for the segment covering this step, which is a different thing: it says how much this business matters to that company, not how much of the market it holds. Not a ranking and not a recommendation.
Electrical infrastructure contractor for power and data-centre projects.
Mechanical and electrical construction services for large facilities.
Mechanical contractor with modular and prefabricated construction for data centres.
Engineering and construction for power generation and industrial facilities.
Supplies the design and programme management that decides how much of a campus can be built in parallel.
Supplies engineering and programme delivery on the largest campus builds.
Supplies the electrical contracting labour, which is the trade the schedule usually waits on.
Does the site work and foundations that have to finish before any of the long-lead equipment can land.
Whether electrical equipment lead times ease from their elevated levels.
Whether prefabrication share keeps rising and compresses schedules materially.
Whether trade labour availability limits regional capacity growth.
Each page explains one technology in plain language, states what it depends on, and names companies by what they supply at that step. Company roles are described qualitatively and deliberately carry no market shares, revenue figures or rankings — those change faster than an explainer can, and a stale number is worse than none. Ticker links point at company pages on this site and are provided for reference only.
Nothing here is investment advice, a recommendation, or a forecast. A company named on a page about a technology is not thereby a good investment, and the chokepoints described are structural facts about supply chains rather than predictions about prices. Technology moves; where a page describes something as unresolved or in development, that was true when it was written.
Plutux no es un asesor de inversiones. Los datos de mercado y el análisis generado por IA son solo informativos y educativos, no asesoramiento de inversión. Aviso legal