As your building ages and its occupants change, it is important to review your building’s control strategies and operating procedures. Malfunctioning and outdated control logic can cause a building’s management system (BMS) to use more energy and prevent it from operating at peak performance. Retro-commissioning (RCx) allows you to identify energy- savings in existing commercial and industrial buildings by improving the BMS’s operation.
The Retro-Commissioning program helps get this process off to a smooth start and provides financial incentives and technical advice.
What is Retro-Commissioning?
When a new building is initially commissioned, it undergoes an assurance process that is conducted at the end of construction. Commissioning demonstrates that the new building operates as designed, with all systems working together at peak efficiency. Retro-commissioning is a similar systematic process that seeks to improve how the equipment and systems function together in an existing building. Depending on the age of the building, retro-commissioning can often resolve problems that occurred during design or construction or address problems that have developed throughout the building's life. Overall, retro-commissioning improves operations and maintenance procedures to enhance overall building performance.
Retro-commissioning is a cost-effective way to improve energy efficiency and reduce energy costs and peak demand. Since it focuses primarily on energy-using existing equipment and on low-cost improvements, it is usually more cost-effective than installing new equipment. In addition, given that a full understanding of a building’s energy using systems is essential to a proper retro-commissioning project, it is an ideal time to determine how best to limit peak energy use within a building. Retro-commissioning identifies non-essential loads that can be “shed” in times of peak energy use. As such, retro-commissioning is a cost-effective way to improve energy efficiency in existing buildings, reduce peak demand and provide increased owner satisfaction.
Using O&M tune-up activities and diagnostic testing, the process addresses root causes. Retro-commissioning is not a substitute for major repair work. Repairing major problems is a must before retro-commissioning can be fully completed.
A complete retro-commissioning process includes:
- A screening activity to identify candidate buildings on your properties
- A survey that results in a retro-commissioning investigation plan
- An investigation including diagnostic monitoring
- A retro-commissioning report that identifies O&M strategies for achieving energy efficiency and demand responsiveness opportunities
- Implementation of selected retro-commissioning improvements
- Applying persistence measures to ensure operational performance and savings
Retro-commissioning allows you to improve your building systems so they operate efficiently, effectively and reliably over time.
Call 877-WISE-USE (877-947-3873) for more information.