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Networked Lighting Controls
Memo: Clarifications to the 2020 Report: “Energy Savings from Networked Lighting Control (NLC) Systems With and Without LLLC”
This memo provides clarity on interpreting the presented information and further elaborates on key points in the 2020 Savings Report.
Key Takeaways
- The control savings factors (CSFs) in the 2020 report represent average savings across a diverse set of projects, which include both optimally and sub-optimally programmed systems. Energy efficiency programs that implement mechanisms to specify or verify proper NLC system programming can expect higher savings, as CSFs are influenced by system setup and optimization.
- High-end trim and other control strategies deliver distinct savings. While high-end trim reduces the lighting load first, other strategies save energy from the remaining load. To maximize savings, EE programs can incentivize and measure these strategies separately, using the CSFs provided in the updated report for independent assessment.
Key Takeaways
- NLC integrated with HVAC can save 30% of the HVAC load through occupancy control, at a small fraction of the cost of HVAC replacement.
- Incentives for uncontrolled LED lights destroy opportunities for these deep, cost-effective energy savings, because each new LED locks out these opportunities over the 10+ year product lifetime.
Lighting Controls Best Practices
This resource explains the following basic networked lighting control strategies: dimming, high end trim, occupancy/vacancy sensing, scheduling, and daylight harvesting, and gives an overview of how to implement them to maximize energy savings.
Key Takeaways
- Describes five basic networked lighting control strategies: dimming, high end trim, occupancy/vacancy sensing, scheduling, and daylight harvesting.
- Explains how to apply each strategy effectively to maximize energy savings.
Future-Proofing Energy Efficiency with Networked Lighting Controls
This is a summary of the potential study commissioned by the DLC titled "Economic Potential of Networked Lighting Controls in Commercial Buildings: Tapping the Added Value of HVAC Connections."
Key Takeaways
- Learn how integrating HVAC and NLC systems can enhance energy efficiency, increase ratepayer savings, and lower carbon emissions.
- Action items for regulators and energy efficiency programs based on the new data.
Evaluating the Non-Energy Benefits of Advanced Networked Lighting Controls
This resource, which summarizes research commissioned by the DLC and conducted by Skumatz Economic Research Associates, Inc. (SERA), identifies non-energy benefits (NEBs) specific to NLC usage and develops a methodology for assigning them quantitative values.
Key Takeaways
- “Non-energy benefits” of NLCs can enable inclusion of anticipated savings from productivity gains, safety and security enhancements, extended equipment lifecycles, and more in cost-benefit calculations.
- Developing a methodology for assigning quantitative values to NEBs will enable utility incentive program staff and others to use an expanded set of metrics for measuring the cost-effectiveness of NLC implementation.
- Research showed statistically significant non-energy benefits from NLCs for both lighting decision makers and building occupants.
NLC5 Cybersecurity Overview
UPDATED 12/21/2022 - CSA/ANSI T200 updated from a service to a standard. Through research and outreach, the DLC has identified several cybersecurity standards and services that satisfy the cybersecurity criteria in the NLC5 Technical Requirements. To help manufacturers and other users find an appropriate standard and/or service for their networked lighting control system, this resource provides additional information on each standard and service and summarizes their application.
Key Takeaways
- Summaries of cybersecurity services and standards recognized by the DLC (updated 7/14/22 to include PSA standard)
- Descriptions of the primary application and timeline for certification of the cybersecurity standards listed in Tables CS-1 & CS-2 of the DLC NLC5 Technical Requirements
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