A data center can be nearly finished, with millions invested in infrastructure, and still be months away from supporting its first workload. Data center commissioning is a critical step toward operational readiness, yet utility interconnection delays, failed equipment tests, and shortages of skilled workers continue to push project timelines further out.
With AI computing and enterprise infrastructure driving demand for new capacity, every delay matters. Developers need to anticipate commissioning challenges early, coordinate the teams responsible for bringing facilities online, and protect the substantial investments behind these projects.
What Is Data Center Commissioning?
Data center commissioning verifies that a facility’s critical infrastructure operates as designed before it begins supporting live workloads. It’s the process that puts installed systems to the test and confirms they’re ready for real-world operating conditions.
Electrical distribution, cooling equipment, backup power, and control systems all undergo testing. Just as importantly, commissioning verifies how these systems respond together during normal operations and simulated failures.
The data center commissioning process commonly follows a five-level framework, progressing from factory acceptance testing and equipment inspections through functional performance testing and integrated systems testing.
This work starts well before construction wraps up. Identifying problems early gives engineers time to resolve them before they interfere with critical project milestones.
Why Commissioning Matters for Time-to-Power
Power availability is a major obstacle facing data center developers. AI workloads and high-performance computing demand enormous electrical capacity, putting additional pressure on an already constrained power infrastructure.
The Uptime Institute’s 2025 Global Data Center Survey found that 36% of operators were very concerned about power availability over the next 12 months. Securing sufficient electrical capacity has become a defining challenge for new developments.
And even after a facility secures power, there’s still work to do. An approved utility connection and completed electrical installations don’t automatically make a data center operational. Backup generators must perform as expected. Cooling equipment needs to respond under load. Power distribution systems must demonstrate they can handle disruptions without compromising critical operations.
Picture a hyperscale facility preparing to bring its first computing hall online. During integrated systems testing, engineers discover that a backup power transfer isn’t functioning correctly. The team must investigate the failure, implement a fix, and repeat the test before the facility can safely support production workloads. One failed test has the potential to push back an expensive launch.
The stakes extend well beyond the opening date. Businesses rely on data centers for uninterrupted access to essential applications and digital services. And downtime is expensive. DataBank reports that unplanned downtime costs an average of $9,000 per minute, or $540,000 per hour.
Thorough commissioning catches vulnerabilities before they threaten live workloads. For developers racing to meet demand, the priority is clear: bring capacity online as efficiently as possible while establishing the reliability customers expect from day one.
H2: Common Challenges That Delay Data Center Commissioning
Commissioning schedules leave little room for surprises, especially when construction teams are already working against aggressive deadlines. Several recurring challenges put those timelines at risk:
- Equipment availability and testing failures: Long lead times for transformers, switchgear, and other electrical equipment delay installation and testing. When equipment fails acceptance testing, engineers must troubleshoot the problem and complete necessary repairs or replacements before moving forward.
- Utility and contractor coordination: Commissioning depends on multiple teams completing their work in the correct sequence. Delayed utility energization or unfinished electrical installations disrupt scheduled testing and push critical milestones further out.
- Incomplete documentation: Missing test records, equipment specifications, or updated drawings create bottlenecks during inspections and final approvals. These details become especially costly when teams discover gaps near the scheduled handoff.
- Limited workforce capacity: Experienced commissioning engineers and critical-facilities professionals are in demand across multiple projects. Without qualified personnel available when testing begins, activities stall and deadlines come under pressure.
These challenges rarely stay isolated. As we’ve explored in our discussion of broader infrastructure dependencies, data center development involves interconnected systems and project teams. A delay in one area often creates problems further down the schedule.
The Growing Demand for Skilled Commissioning Professionals
Building data center capacity requires more than securing land, equipment, and utility connections. Developers also need experienced people who understand how to bring complex facilities into operation.
Finding those professionals is becoming increasingly difficult. The Uptime Institute’s 2025 Global Data Center Survey found that 46% of operators struggled to find qualified candidates for vacant roles, while 37% reported difficulty retaining staff. The report also identified significant shortages in electrical and mechanical trades.
Commissioning depends on highly specialized expertise. Electrical engineers evaluate power systems, mechanical specialists verify cooling performance, and commissioning technicians execute critical tests. Experienced project managers keep those activities coordinated and ensure issues receive attention before they jeopardize deadlines.
For developers managing several projects at once, waiting until commissioning begins to address workforce needs is a costly gamble. HNM Systems helps organizations get ahead of these demands through staff augmentation and workforce development programs that support complex infrastructure projects.
We’ve seen firsthand how much the right workforce strategy matters. In one engagement, HNM helped a customer build 37% of its data center workforce, providing the specialized talent needed to support a major infrastructure initiative.
How to Keep Data Center Commissioning Projects on Schedule
Successful commissioning starts with decisions made long before the first integrated systems test. Developers who treat workforce readiness and testing requirements as essential parts of project planning are better positioned to avoid last-minute disruptions.
- Build commissioning into the project schedule early. Define testing requirements and identify equipment dependencies during initial planning. Account for troubleshooting and retesting rather than assuming every system will pass on the first attempt.
- Coordinate utility and construction milestones. Keep energization requirements aligned with installation progress. Every team should understand which activities depend on power availability and how changes affect the commissioning schedule.
- Secure specialized professionals before they’re needed. Assess technical staffing requirements across the full project lifecycle. Involving experienced personnel early helps expose execution gaps while there’s still time to address them.
- Maintain clear documentation and accountability. Assign responsibility for testing records, issue resolution, and milestone approvals. Keep documentation current so missing information doesn’t become an obstacle during final inspections.
- Plan for changing workforce demands. Staffing needs often intensify as multiple systems become ready for testing. Flexible workforce arrangements give project teams access to additional expertise when workloads peak.
The earlier these priorities become part of the project plan, the more control developers have over commissioning timelines.
Supporting Data Center Infrastructure with HNM Systems
Data center development is moving quickly, and the demand for experienced technical professionals isn’t slowing down. Keeping projects on schedule requires workforce strategies that match the complexity and pace of today’s infrastructure investments.
Through our dedicated data center workforce solutions, HNM Systems connects organizations with specialized talent across construction, commissioning, and critical-facilities operations. Our capabilities include electrical engineering, project management, and technical workforce development.
Our experience goes beyond filling individual positions. We’ve helped a national technology infrastructure contractor scale its data center and technology services business, supporting the workforce demands of a growing operation.
Having qualified professionals in place at the right time keeps complex infrastructure projects moving. HNM Systems builds workforce solutions that reduce staffing bottlenecks and support execution from construction through operational readiness.
Planning a data center infrastructure project? Send us a message and let’s discuss the technical talent and workforce solutions needed to keep your project moving forward.
