Re-tuning helps enable:
- Cost-effective facility energy savings (up to 25%)
- Significant cost savings
- Improved building occupant comfort
- An in-house O&M capability that benefits organizations for years.
Re-tuning is a systematic process aimed at minimizing building energy consumption by identifying and correcting operational problems that plague buildings at no-cost or low-cost. Re-tuning relies on building automation system data to identify and implement control improvements at no cost other than the time to program the changes.
These low-cost or no-cost operational improvements ultimately improve the buildings' energy efficiency, reduce operating costs, and improve occupant comfort.
An active energy management program utilizes many practices to reduce energy use. Re-tuning is one practice that has been verified to produce energy savings ranging from 5% to 25% in federal sites. Re-tuning is an effective, low-cost and relatively easy method for reducing building energy use primarily accomplished through the building automation system controls.
The primary steps of re-tuning include:
- Basic building information collection
- Trend-data collection and analysis
- Building walk down
- Identify and implement re-tuning actions
- Report findings and recommended actions and implementations
- Analyze savings
- Continued use of re-tuning in operation and maintenance.