SERVICES

EPCM Services

Engineering, procurement and construction management under one technical authority, from FEED to start-up.
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Processing plant under construction: tanks in scaffolding, conveyor gallery and stockpile

EPC & EPCM ENGINEERING SERVICES

EPCM places engineering, procurement and construction management under a single contract and a single technical authority. The client keeps the construction contracts and sees every vendor and subcontractor cost. +NR runs the engineering baseline, the procurement packages and the site coordination against that baseline, with one change control board and one performance measurement baseline from FEED to start-up.

Front-end engineering and capital basis

Front-end engineering and capital basis

FEED sets the capital number, the procurement strategy and the construction baseline that every later phase is measured against. The deliverables below are produced together, by the same discipline leads who will carry the detailed design.

  • Multidiscipline FEED to AACE Class 3, with capital accuracy of ±10 to 15%

  • Basis of design aligned with the operator's philosophy

  • Capital estimate with quantified contingency and an audit trail to scope

  • Procurement packaging strategy and long-lead item identification

  • Construction sequencing baseline

  • Risk register opened against the engineering baseline

  • Interface register maintained as a live document

  • Requirements traceability under the INCOSE V-model

Detailed engineering and procurement

Detailed engineering and procurement

Detailed design is issued as construction packages, and procurement runs against the same engineering baseline. Vendor data returns to the configuration register through change control, so the specification and the purchased equipment do not drift apart.

  • Process, mechanical, piping, electrical, instrumentation, civil and structural design issued as construction packages

  • Technical specifications and tender packages

  • Technical bid evaluation

  • Vendor data management and configuration register

  • Inspection and test plans agreed with vendors

  • Local content coordination where host country rules apply

  • Every deviation routed through the change control board

Construction management and start-up

Construction management and start-up

The client holds the construction contracts. +NR coordinates subcontractors technically and commercially on the client's behalf, keeps engineers at site to resolve changes at the asset, and stays through commissioning with the same team that produced the design.

  • Field engineering and site supervision

  • Technical and commercial coordination of subcontractors on the client's behalf

  • Progress measured against installed quantities

  • Change resolution at the asset, with quantified recovery options

  • Commissioning engineering and pre-start-up safety reviews

  • Performance test runs

  • Operating procedures and operator training

  • Handover documentation

Project controls, quality and HSE

Project controls, quality and HSE

Cost, schedule and quality are reported against one performance measurement baseline, on a monthly cycle, with the same granularity as the engineering scope. Contract models are chosen with the client to match its risk appetite and contracting standards.

  • Earned value management against the performance measurement baseline

  • Critical path schedule with contingency tied to identified threats

  • Monthly performance pack with variance analysis and forecast to completion

  • ISO 9001:2015 design and document control

  • ISO 45001 health and safety management at site

  • Process safety within the engineering deliverables, IEC 61511 where applicable

  • Non-conformance reports handled through the change control board

  • Reimbursable, target cost or hybrid contract models

  1. Crushing plant with stacker and stockpile under a clear sky
    01FEED and capital basis

    • Class 3 estimate, procurement strategy and construction baseline produced together

    • Risk and interface registers opened at this stage and kept alive to start-up

    • Long-lead items identified and placed on the critical path

  2. Fabricated vibrating screen being finished at the supplier workshop
    02Detailed engineering and procurement

    • Design issued as construction packages; tenders run against the same baseline

    • Vendor inspection and test plans followed at the supplier's yard

    • Vendor data fed back into the configuration register through change control

  3. Plus Natural Resources engineers inspecting process piping at a plant
    03Construction management and start-up

    • Engineers at site; changes resolved at the asset and recorded in the change log

    • Subcontractor progress validated against installed quantities

    • Pre-start-up safety review, performance tests and handover by the same team

How we work

EPCM engagements, in practice

How +NR runs EPCM programmes: contract structure, capital basis, vendor data, site measurement and continuity.

What is the difference between EPCM and EPC, and where does the risk sit?

Under EPC a single contractor takes the construction contracts and the associated price risk, and the owner buys a finished plant. Under EPCM the owner holds the construction contracts and +NR manages engineering, procurement and construction on the owner's behalf. The owner sees every vendor quote and subcontractor price, keeps the ability to change scope without renegotiating a lump sum, and carries the schedule and quantity risk with +NR reporting against a baseline. EPCM suits brownfield work and projects where scope will move; EPC suits well-defined scopes where price certainty matters more than visibility.

How is the capital estimate built and held during the project?

The FEED estimate follows AACE Class 3 practice, with ±10 to 15% accuracy and contingency assigned to identified risks rather than a flat percentage. Every line traces back to a scope item. After FEED the estimate is maintained against the live engineering baseline: change orders are quantified before approval, and the monthly performance pack shows earned value, variance and forecast to completion at the same granularity as the engineering scope.

How does vendor data get back into the engineering baseline?

Procurement packages are issued from the same specifications that detailed design is built on. When a vendor returns certified data, it enters the configuration register through the change control board, which checks the effect on interfaces, layouts and downstream disciplines before the data is accepted. Inspection and test plans are agreed with the vendor at award and followed at the supplier's yard.

How is subcontractor progress measured?

Against installed quantities taken from the engineering quantities, verified by field engineers at site. Invoiced amounts are reconciled to those quantities, never the other way round. Variance against the construction baseline is raised at the change control board with quantified recovery options. Health and safety at site is managed under ISO 45001 together with the client's own standards.

What does continuity between FEED and start-up mean in practice?

The discipline leads who produce the FEED carry the detailed design, follow the equipment through procurement and are present at site during commissioning. The risk register, interface register and change log opened at FEED are the same documents used at handover. Questions raised during pre-start-up safety reviews are answered by the people who made the original design decisions.