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Commissioning Fundamentals1 / 13

What is Commissioning?

Definition, scope, why it matters, and how it differs from testing and handover.

9 min read ยท Jacob Willis, Net Zero Lead


Commissioning is the process of verifying that building systems are installed correctly, configured properly, and deliver the intended performance. It's not testing (does it run?), and it's not handover (does the occupant know how to use it?). Commissioning is the bridge between design intent and actual performance.