To earn this credit, your project building must have a Building Automation System (BAS) that monitors and controls HVAC and lighting systems.

The minimum BAS functions for HVAC include monitoring the status of sensors and controlled devices, scheduling equipment off when not in use, scheduling set points and setbacks, and trending equipment status.

The minimum BAS functions for lighting includes scheduling lights to turn off during unoccupied times.

Earning the credit

Teams generally pursue this credit only if they already have a BAS in place, but in some situations they may expand the level of automation as part of the LEED process.

Buildings with an existing BAS often do not have automated lighting controls included, and teams in this situation often make the mistake of overlooking the need to address lighting automation as part of this credit. It’s okay to have one automation system that deals with lighting only and another that handles HVAC systems.

Providing local automatic controls (occupancy sensors) for lighting is considered to be an acceptable level of automation for this credit; no BAS tie-in is required. 

Older BAS installations with pneumatic controls will qualify for the LEED requirements, but upgrading to Direct Digital Controls (DDC) will provide a system that is fully integrated and responds quicker and with more accuracy to system inputs.

Benefits of BAS

Building Automation Systems help to achieve an optimal balance between energy efficiency and occupant comfort. A BAS is made up of three key components including sensors, controllers, and controlled devices. These components act together to monitor building conditions, compare those conditions to desired conditions, and signal equipment to adjust as necessary to bring the building within desired setpoints. 

Consider these questions when approaching this credit

• Does the existing BAS meet the scope of the LEED requirements?
• Is there an older system in place that is in need of an upgrade?
• Are there any financial incentives from local utility or government agencies to help cover the cost of a new BAS?
• Does our building include complex HVAC and lighting systems that warrant a BAS?
• Does our existing BAS include lighting control?