March 3, 2025 — The DesignLights Consortium (DLC) has released an innovative resource designed to boost energy savings in the commercial building sector by encouraging the integration of networked lighting controls (NLC) with heating, ventilation and air conditioning (HVAC) systems.
Image courtesy of DLC
DLC research shows that adding NLCs to commercial lighting upgrades can cut a project’s new lighting load in half. Taking this a step further, integrating lighting controls with HVAC can save up to 30 percent of HVAC energy and 20 percent of the total energy load in large commercial buildings, according to ACEEE. Adoption of this strategy has lagged, however, largely due to the complexity of integration projects, which require collaboration between building owners and operators, electrical/lighting engineers and contractors, and mechanical/HVAC engineers and contractors, who often work independently.
DLC Executive Director and CEO Tina Halfpenny stated:
Our NLC-HVAC Integration Toolkit facilitates implementation of projects that can significantly reduce energy waste, while lowering operating costs for owners. Whether you have experience with NLC-HVAC integration or it’s a brand-new concept, the DLC’s toolkit opens the door to better coordinated projects that yield more energy and cost benefits. We’re excited to get it into the market and start seeing the results.
Development of the NLC-HVAC Integration Toolkit grew from findings of a working group comprising experts across the lighting, HVAC and utility industries convened by the DLC in 2023. The group named lack of communication between people working in lighting and those involved in HVAC controls as a major hurdle to achieving energy savings on a scale only possible by linking lighting controls with HVAC. In developing the toolkit, the DLC aims to break down barriers and improve collaboration between the professional worlds of lighting and HVAC, enabling greater savings.
Toolkit components include:
· Decision Tree to determine which projects are good candidates for integration and avoid those where success is unlikely;
· Case Studies presenting successful integration examples, searchable by building type;
· Template of a sample construction integration specification aligned with CSI Division 25 (a section within the Construction Specifications Institute (CSI) MasterFormat regarding integrated automation);
· Handbook that concisely describes the basic information that each group needs to know, with a glossary and references to relevant standards;
· Responsibility Matrix in the form of a sample spreadsheet that presents an integration project in terms of major tasks and indicates which party is responsible for each one.
By bridging the gap between NLC and HVAC systems, the toolkit can help facilities use building automation to level up energy efficiency. The toolkit is designed to fit the needs of an array of professionals — including building management system contractors, specifiers, utilities, manufacturers, engineers and designers — and is available to download free of charge.
The NLC-HVAC Integration Toolkit is available at DLC. The DLC website has more information about NLC-HVAC integration, including an introductory video based on a 2024 DLC Controls Summit presentation.
