Decommissioning

Planning withdrawal from service with closure in mind.

What we do

Retiring a facility requires technical definition and a work sequence consistent with the asset’s condition. Planning integrates inventory, interfaces, materials and site requirements to guide closure activities.

Preparing for the end of the lifecycle

Closure begins before dismantling. It is necessary to understand which equipment and systems fall within the scope, which services must be maintained and what information is needed to organise interventions.

The assessment considers retirement options, materials recovery and the subsequent condition of the site. Environmental, safety and authorisation requirements are reviewed with the responsible project functions.

Service scope

The scope is defined according to asset condition, project stage and available information.

Define and assess

Inventory, condition and interfaces are reviewed to establish scope boundaries. The assessment compares retirement options and identifies constraints affecting planning.

  • Asset inventory and background information
  • Options and service boundaries
  • Interfaces with operating facilities
Technical capabilities

Assessing options at the end of service

Full or partial retirement, or repurposing

Options are assessed against asset condition and the functions that must be maintained. The decision requires clear ownership boundaries, service boundaries and interfaces with neighbouring facilities.

  • Condition of equipment and structures
  • Systems that remain available
  • Site constraints

Materials and final condition

The inventory supports planning for material recovery, reuse and handling. The sequence and records must be linked to closure conditions and any specialist assessments required.

  • Inventory and traceability
  • Logistics and intended destinations
  • Verification of handover condition

Deliverables and coordination

Information for decision-making

Deliverables are agreed when the service is defined. The bases used, results and outstanding checks are documented so that the information can carry through to the next stage.

  • Options study and retirement scope
  • Overall decommissioning and logistics plan
  • Records and service close-out criteria
Background information to get started

An initial review confirms what information is available and what needs to be completed. To prepare for that discussion, it is useful to have:

  • Facility inventory, drawings and history
  • Ownership boundaries and shared utilities
  • Closure objectives and site requirements

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