Industrial Commissioning: Why Projects Drift
When an industrial project ends up behind schedule, in the vast majority of cases observed, the culprit is neither civil works, nor manufacturing, nor assembly. It's commissioning — the startup phase — that drifts. Pre-startup tests that reveal non-conformities, ITRs (Inspection and Test Records) poorly filled, specialized teams that can no longer be mobilized, broken link between execution and documentation. Here's why this phase systematically breaks down and how you can control it.
Commissioning, The Final High-Risk Stretch
Commissioning is the final phase of an industrial project where equipment is started up, tested under operational conditions, and handed over to operating teams. It's the most critical phase: it's typically at this point that the majority of observed delays emerge. Not from civil works, nor manufacturing, nor installation.
The industrial commissioning cycle is organized into several milestones:
- Mechanical Completion (MC) — all equipment is installed, connected, insulated. Plumbing, electrical, instrumentation, structure: physically ready.
- Pre-Commissioning — cold tests: electrical continuity, tightness, motor rotation.
- Ready for Commissioning (RFC) — checklist validated by the DO, authorization for pressurization/voltage/circulation.
- Hot Commissioning — progressive startup, ramp-up, validation of performance against specifications.
- Performance Test Run — official demonstration of contractual performance, triggering acceptance.
Why Commissioning Systematically Drifts
Cause 1: Documentation Arrives Late
To start commissioning, you need material certificates, welding test reports, NDT reports, piping calculation notes, pressure test reports. If these documents aren't ready (they're being completed in the previous phase), commissioning waits. On a site with 80-200 pieces of equipment, the absence of 5 documents blocks 5 pieces of equipment, which blocks their commissioning loop, which blocks the overall startup.
Cause 2: ITRs (Inspection and Test Records) Are Not Structured
Each piece of industrial equipment has about ten ITRs to validate: isometric test, dielectric test, calibration, instrumentation loop, insulation, painting, labeling. On Excel, traceability of validated versus pending ITRs is lost. At startup, you discover that calibration of a critical pressure sensor (SIL 2) is missing for safety, you have to bring back the specialized calibration subcontractor. Delay: 2 to 4 weeks.
Cause 3: Specialized Teams Are No Longer Available
At the commissioning phase, contractors have already redeployed their teams to the next jobs. A Siemens TIA Portal PLC programmer who was available in March is no longer available in June. A certified IECEx instrument technician may be committed elsewhere for 6 weeks. If you didn't lock in availability, you wait.
Cause 4: No Formalized DO/Contractor Coordination
Commissioning is joint work: the contractor starts, the DO validates. Without a formalized procedure and countersigned workflow (the contractor proposes validation, the DO accepts or refuses with reason), it devolves into ambiguity. Contractors consider their lot finished, the DO thinks there are still tests, and nobody knows when commissioning is really complete.
Cause 5: No Commissioning ↔ Payment Link
When payments aren't tied to validation of commissioning milestones, the contractor has no incentive to stay on site once manufacturing is invoiced. You need a retention mechanism on the commissioning phase (10-20% of lot contract) that is only released at countersigned validation of each milestone: MC, RFC, performance test.
The Cost of Commissioning Drift
The 4 Pillars To Stop Drifting
- Structuring by systems and subsystems with digitized ITRs, validated in electronic workflow with signature.
- Formalized countersigned coordination: workflow Mechanical Completion → Pre-Commissioning → RFC → Performance Test, each step validated by DO + AMO + CDP + contractor.
- Real-time Management View on commissioning milestone progress, alerted on drifts.
- Automatic link with Finance: payment application triggering occurs at validated milestone, not before.
How PunchLink Addresses It
PunchLink integrates a complete commissioning module: structuring by lot and weighted phase (up to 14 phases: studies, procurement, manufacturing, assembly, MC, pre-comm, RFC, hot comm, performance test, MES, GPA), digitized ITRs with countersigned validation, automatic generation of acceptance report in Word, automatic link with payment applications per AFNOR P 03-001.
A real-time Management View aggregates project progress in weighted percentage (sum of phase % × phase weight), lists blockers (blocking reservations, HSE not cleared, DOE missing), and enables the DO to see technical debt before it makes commissioning drift.
Frequently Asked Questions
What is the difference between Mechanical Completion and Commissioning?
Mechanical Completion (MC) marks the end of physical assembly: everything is connected, insulated, and sealed, but nothing is started. Commissioning follows with cold and hot tests to validate proper operational performance.
What exactly are ITRs?
Inspection and Test Records — the detailed documentation of each test and inspection performed on industrial equipment. For a motorized valve, this will typically include: tightness test, motor test, loop test, positioner calibration, IECEx validation if ATEX zone, countersignature.
How many commissioning milestones typically per project?
On a 5-20 M€ TCE project, there are generally 4 to 7 major milestones per lot: Mechanical Completion, Pre-Commissioning, Ready for Commissioning, Hot Commissioning, Performance Test Run, sometimes Reliability Run. Multiplied by 8-14 lots, that's 40 to 100 milestones to track.
Does PunchLink manage instrumentation loops?
Yes via the ITR module. Each loop is a sub-element of the instrumentation lot with its own validation cycle: sensor calibration, loop test (4-20 mA, HART), PLC functional test, final test under operational conditions. Each step signed by the contractor and validated by the DO.
Can payment triggering be linked to a commissioning milestone?
Yes. In PunchLink, each lot phase has a weight (% of contract) and a status. When a phase reaches a validation threshold (for example 80%), a payment application is automatically proposed. The DO validates or adjusts, then the application becomes invoiceable.