COMMISSIONING
Supporting safe, thorough testing and verification of electrical and mechanical systems.
Ensuring all systems operate reliably and meet design specifications before handover.
Commissioning
Commissioning is the critical handover between construction and operation - where systems are proven, tested, and brought safely online. S.A.S Transition’s teams are specialists in electrical, mechanical, and control system commissioning, ensuring every installation performs exactly as designed.
Our capabilities cover HV and LV testing, VLF and insulation resistance testing, primary and secondary injection, relay verification, and full functional testing of switchgear and transformers. On the mechanical side, we manage pressure testing, flushing, balancing, and integrated system testing (IST) - providing confidence that all systems are ready for operation.
Every stage of our commissioning process is backed by QA/QC validation, test records, and verification protocols, all tracked through SASTpro for full transparency and traceability. With extensive experience across data centres, renewables, oil and gas, nuclear, and grid infrastructure, we bring control and clarity to the most demanding commissioning environments.
Areas of Expertise
Global Experience
S.A.S Transition has delivered commissioning and energisation support for major infrastructure across Europe and beyond - from data centres and grid systems to renewable and offshore assets.
Our engineers are trusted for disciplined, safe, and efficient commissioning across every sector.
Project
Data Centre
Client
Confidential
Location
Amsterdam, Netherlands
Delivered HV/LV installation and commissioning works, including QA/QC verification and system energisation for a hyperscale data centre campus.
Project
Data Centre
Client
Confidential
Location
Groningen, Netherlands
Construction and testing of critical electrical systems, including containment, cable terminations, and integrated commissioning of mechanical plant.
Project
Data Centre
Client
Confidential
Location
Rotterdam, Netherlands
Full construction phase support and QA/QC inspection for HV and LV switchgear installation, with final energisation and documentation handover.
Project
Data Centre
Client
Confidential
Location
Brussels, Belgium
Commissioning and energisation of electrical and mechanical systems, including integrated testing, QA/QC, and safety documentation through SASTpro.
Project
Data Centre
Client
Confidential
Location
Mons, Belgium
End-to-end commissioning and energisation activities for multiple data halls, covering switching operations, QA/QC, and system verification testing.
Project
Data Centre
Client
Confidential
Location
London, United Kingdom
High-voltage switching, energisation, and commissioning works with QA/QC oversight during live data centre expansion.
Project
Data Centre
Client
Confidential
Location
Dublin, Ireland
Ongoing maintenance and callout support across multiple data halls, including preventive testing, fault diagnostics, and isolation management.
Project
Data Centre
Client
Confidential
Location
Frankfurt, Germany
Delivered commissioning support, testing, and QA/QC verification of mechanical and electrical systems during final completion phase.
Project
Data Centre
Client
Confidential
Location
Copenhagen, Denmark
Mechanical and electrical maintenance program with COHE/LOTO safety controls and 24/7 fault response coverage for mission-critical systems.
Project
Data Centre
Client
Confidential
Location
Amsterdam, Netherlands
Switching, isolation, and QA/QC inspections for electrical installation and commissioning works during new build data centre construction.
Project
Oil & Gas
Client
Confidential
Location
Aberdeen, Scotland
Commissioning and maintenance support for offshore electrical systems, including HV switching, safety management, and QA/QC verification.
Project
Oil & Gas
Client
Confidential
Location
Amsterdam, Netherlands
Construction and energisation of electrical distribution systems, incorporating COHE/LOTO controls, QA/QC inspections, and mechanical interface testing.
Project
Renewables
Client
Confidential
Location
Groningen, Netherlands
HV commissioning and energisation of grid connection systems for wind and battery assets, including testing and QA/QC documentation.
Project
Nuclear
Client
Confidential
Location
England, United Kingdom
Maintenance, inspection, and QA/QC verification of electrical and mechanical systems within operational nuclear facilities under strict safety governance.
Project
Renewables
Client
Confidential
Location
Denmark
Commissioning, flushing, and pressure testing of mechanical and electrical systems for a renewable power generation project.