Report | Fact Sheet
This document is a guide to help office building owners and energy managers reduce plug and process load (PPL) energy use. It includes a process for developing a PPL control strategy for office buildings, and discusses how the use of integrated controls, including those from lighting, can help connect multiple building systems, save energy in PPLs, and better understand building operations.
This document is a guide that describes the process needed to cost-effectively reduce PPL energy impact in retail buildings. It includes general and appliance-specific PPL control strategies, and discusses how the use of integrated controls, including those from lighting, can help connect multiple building systems, save energy in PPLs, and better understand building operations.
Potential non-lighting energy and operational benefits associated with advanced lighting controls (ALCs) and provides decision makers with a justification to specify integrated building systems.
Interoperability and system integration: System performance is a function of how well devices work together, and common platforms and protocols are needed to enable the exchange of usable data between lighting systems, other systems, the internet, and cloud services. Study results and webinar on connected lighting system interoperability.
"The decision guides found in this resource were created to help building owners find the right control strategy for PPLs in their buildings. The guides are developed for different building types and outline the costs, potential savings, complexities, and user friendliness of various control strategies and their applications to each building type. The guides also aim to help building owners determine whether a control is appropriate for particular project applications such as staged retrofit projects, whole-building retrofits, new construction projects, and projects that involve tenants and landlords. Lastly, the guides provide links to additional resources that can further help building owners assess and reduce the energy use that is associated with PPLs, find rebates for PPL control measures, and procure the right control types for their building equipment."
This fact sheet covers the potential for deeper energy savings and occupant comfort through the integration of lighting controls and automated shading. Research conducted by Lawrence Berkeley National Laboratory found an annual energy savings up to 30% in controlled zones compared to a baseline lighting system. Furthermore, occupant comfort (i.e., non-energy benefit) potential was identified, as the system maintained an acceptable level of Daylight Glare Probability at almost all times and maintained illuminance at the workplane at all times.
This report collected, aggregated, and analyzed zone- and fixture-level energy monitoring interval data from networked lighting controls (NLC) systems in 114 buildings across a variety of building types in North America, representing over 1,200 zones with an average of 60 days of monitoring data per building.
This report from the DesignLights Consortium, an ILC Organizing partner, aggregates data from nearly 200 NLC system installations and provides in-depth energy saving estimates and analysis for these installations.
The California Lighting Technology Center, in collaboration with the California Energy Commission, is conducting research to develop and evaluate technology that integrates automated controls for HVAC, electric lighting and dynamic fenestration systems.
This paper describes emerging plug and process load technologies, the characteristics necessary for successful integration into EMIS platforms, and research questions the U.S. Department of Energy and the national laboratories can pursue to rapidly advance the state of the art.
Understanding the needs of the industry and the customer to support the adoption of IoT technologies that can increase the uptake of energy saving products (e.g., LED lighting, sensors and controls) through energy savings opportunities (e.g., plug loads and HVAC) or valued non-energy benefits.
NextEnergy led an effort to train contractors, evaluate the experience of ALC/NLC demonstration projects, identify opportunities to reduce market barriers, and accelerate the increased adoption of ALC/NLC technologies within small and medium commercial buildings (SMCB). The LiTES Program defined SMCB as commercial buildings under 100,000 square feet. The LiTES Program efforts also included evaluating current ALC/NLC utility incentives, piloting ALC/NLC incentives specific to SMCB, and identifying opportunities to better align utility incentives with current ALC/NLC technology to support accelerating the adoption of ALC/NLC in SMCB.
The LiTES Program sought to reduce energy use in small and medium commercial buildings (SMCB) by accelerating the adoption of ALC/NLC through contractor training and technology deployment. Leveraging recommendations already outlined by the DesignLights Consortium Commercial Advanced Lighting Controls (DLC CALC) project, NextEnergy, in coordination with partners, led an effort to train contractors and evaluate the experience of ALC/NLC system demonstration projects in small and medium commercial buildings.
In coordination with utility partners Consumers Energy and DTE Energy (DTE), LiITES led an effort to pilot and evaluate current utility incentives and identify opportunities to align incentives with current advanced lighting controls technology. The LiTES Program piloted utility incentives for advanced/networked lighting controls specific to SMCB and sought to identify opportunities for improvement.
Fact sheet of three-month study of NREL's Research Support Facility (RSF) that demonstrated that a device inventory and a limited device-level metering effort can produce a disaggregated plug load breakdown, uncovering energy savings opportunities. This study is limited to the RSF, however, and should be validated in other buildings to see if the method is generally effective.
The Lighting Research Center investigated potential opportunities for using lighting controls to reduce HVAC energy using lighting sensors in commercial buildings. Research report conducted for the Lighting Energy Alliance.
Fact sheet that addresses the implementation of connected building technology being evaluated by Nantum by Prescriptive Data, that has been developed by a real-estate company to manage its portfolio. Nantum is cloud based, powered by machine learning, and predictively ramps the building HVAC systems up and down to optimize efficiency based on occupancy patterns, weather conditions, and real-time electricity consumption. The system also provides energy efficiency recommendations to building operators in real-time.
Fact sheet that addresses when occupants interact with buildings and the data generated. The technology under consideration tests the promise of the Internet of Things (IoT) by using relatively inexpensive and easy-to-install wireless, lighting-fixture-based sensors that detect and record changes in occupancy, temperature, visible light, infrared radiation, and LED power consumption.
GSA's GPG program commissioned LBNL to assess wreless ALC at two federal sites in Northern California. Results showed 54% normalized energy savings for GSA when fluorescent lamps with dimmable ballasts were retrofitted with wireless ALC, and 78% when the wireless ALC retrofit was coupled with LED fixtures. Wireless ALC integrated with LED fixtures is recommended for new construction and renovations, with simple payback between 3 and 6 years. It should also be considered for retrofits in facilities with minimal existing controls, high lighting energy usage, and high electricity costs.
GSA’s Green Proving Ground program recently assessed the potential of wireless sensor technology to provide a cost-effective and facilities-friendly way of helping data center operators visualize and implement system changes that reduce overall energy consumption. Findings include significant cost savings, as well as a substantial reduction in cooling load and CO2 emissions. Sensors utilizing a wireless mesh network and data management software to capture and graphically display real time conditions for energy optimization were installed in a demonstration project.
This ZNE Technology Application (TA) Guide provides an overview of luminaire level lighting control (LLLC). The full LLLC approach provides controllability at each fixture with real-time energy tracking and data collection, and it aligns with current trends and interests in space utilization, occupant satisfaction and productivity. This TA guide describes the system, features and benefits, energy performance from both modeled and measured results, application considerations, costs and trends.