Mechanical completion
Completion status should be verified system by system, with clear punch-list ownership and boundaries between construction, pre-commissioning and commissioning.
Electrical energization
Energization requires verified protection settings, inspections, permits, communication protocols and a controlled sequence accepted by responsible parties.
Functional and performance testing
Functional tests prove systems operate correctly; performance tests show the plant can meet contractual and operational expectations under defined conditions.
Consultant Field Note
In real plant reviews, the most useful conclusion is rarely a single KPI. It is the connection between test evidence, alarms, operator logs, grid events and the corrective action that can be executed without creating new reliability risk.