Recommissioning

Recommissioning is the process of restoring a facility, system, or piece of equipment to a state of reliable operation after a period of inactivity, decommissioning, or major changes, with the aim of meeting current performance and safety standards.

The process is typically structured and iterative, encompassing planning, data gathering, system analysis, fault diagnosis, implementing adjustments or retrofit measures, testing, verification, and documentation of results.

In building and facility management, recommissioning follows established commissioning practices and aims to restore or improve energy efficiency, occupant comfort, reliability, and safety. It often relies on performance measurements and control optimization.

Recommissioning is distinct from new commissioning and retrocommissioning and may be triggered by renovations, occupancy changes, equipment outages, or aging systems. It is used in commercial buildings, industrial plants, data centers, ships, and energy infrastructure.

Benefits typically include energy savings, longer equipment life, reduced downtime, improved indoor air quality and comfort, and lower operating costs.