Retro Commissioning / Re-Commissioning
Optimise Building Systems To Improve Efficiency And Performance
Retro-Commissioning vs. Continuous Commissioning: Key Differences
Both approaches support energy efficiency and sustainability goals, but while retro-commissioning addresses existing inefficiencies, continuous commissioning ensures systems remain optimised over time.
Retro-Commissioning (RCx)
Retro-commissioning is a one-time process that focuses on improving the performance of existing building systems. It typically involves a detailed evaluation of the building’s current systems, identifying inefficiencies, and implementing corrective measures to restore systems to their optimal performance. The goal is to address performance gaps, reduce energy consumption, and improve occupant comfort. Once the initial fixes are made, retro-commissioning is usually complete.
Scope
Focuses on existing systems that may have been underperforming over time due to aging, neglect, or changes in building use.
Process
A comprehensive, one-time assessment and optimization of building systems, followed by corrective actions and adjustments.
Timing
Done as a standalone project or at key moments when performance issues are identified.
Continuous Commissioning (CCx)
Continuous commissioning, on the other hand, is an ongoing process that uses real-time data to monitor, assess, and optimize building systems continuously. It typically involves the integration of automated monitoring systems and control strategies that enable ongoing performance adjustments. Continuous commissioning ensures that building systems remain efficient as conditions change over time, including shifts in occupancy, weather, or energy use patterns.
Scope
Focuses on maintaining and fine-tuning system performance over time through continuous monitoring and data-driven decisions.
Process
Involves ongoing adjustments, often using building management systems (BMS) or other automation tools to optimize operations continuously.
Timing
An ongoing, adaptive process designed to keep systems running at peak efficiency over their lifecycle.
Services
- Commissioning Authority (CxA)
- Estidama Independent Commissioning Agent (ICA)