![]() Historical barriers to integrating control systems at the building-level control have included complexity, cost, and challenges with occupant interactions with the controls. Integrating NLCs with HVAC, plug load controls, and space utilization assessments all enhance the value of NLC investments. ![]() These sensor networks allow for optimization of lighting, heating, ventilation, and air conditioning (HVAC) and plug load control to achieve significant reductions in building energy consumption. NLC products deploy distributed sensors throughout a building to collect more » granular data on building operations-these can allow multiple building systems to respond to real-time feedback on occupancy, daylight, and in some cases even temperature and air quality. But NLCs can be leveraged to achieve significant energy savings and value by enhancing control of other building systems. And as lighting system wattage declines because of the increasing efficiency of LEDs, advanced controls have less lighting energy to save and the cost-effectiveness of the NLC investment decreases. ![]() At the same time, NLCs can substantially increase the cost and complexity of the lighting retrofit. = ,įor the last few years, networked lighting control (NLCs) have promised significant energy savings beyond what is achieved through a basic light-emitting diode (LED) lighting retrofit. The LRC developed a technology transfer model to better understand what actions are required and by whom to move any technology toward full market acceptance. Technology transfer efforts must play a key role in gaining market acceptance. Discussions of technology barriers and developments are insufficient by themselves to achieve higher penetration of lighting controls in the market place. In addition, we believe that no lighting controls solution is effective or acceptable unless it contributes to, or does not compromise, the following goals: (1) Productivity-Planning, installation, commissioning, maintenance, and use of controls should not decrease business productivity (2) Energy savings-Lighting controls should save significant amounts of energy and money in relation to the expense involved in using them (acceptable payback period) and/or (3) Reduced power demand-Society as a whole should benefit from the lowered demand for expensive power and for more natural resources. (3) Minimize ongoing perceived overhead costs and inconvenience to the end user, or in other words, systems should be simple to understand and use. Cost should consider: hardware capital cost including wiring, design time required by the specifier and the control system manufacturer, installation time required by the electrician, and commissioning time and remedial time required by the electrician and end user. (2) Allow significant cost reduction compared to current market standard systems. Overcoming the identified barriers requires more » lighting control products on the market to achieve three main goals: (1) Achieve sufficient functionality to meet the key requirements of their main market. The primary barriers identified include cost effectiveness of lighting controls to the building owner, lack of standard communication protocols to allow different part of the control system to communicate effectively, and installation and commissioning issues. Working with lighting manufacturers, specifiers, and installers, the project identified technological and marketing barriers to the widespread use of lighting controls, specifically automatic-off controls, occupancy sensors, photosensors, dimming systems, communication protocols and load-shedding ballasts. The scope of the project was narrowed to identify barriers to the penetration of lighting controls into commercial-industrial (C/I) applications that employ fluorescent lamp technologies, and to recommend means for overcoming these barriers. The addition of a fourth year expanded the original project objectives to include an examination of the impact on fluorescent lamps from dimming utilizing different lamp electrode heating and dimming ratios. ![]() The initial objectives were: (1) identifying barriers to widespread penetration of lighting controls in commercial/industrial (C/I) applications that employ fluorescent lamp technologies, and (2) making recommendations to overcome these barriers. Department of Energy (DOE), the Lighting Research Center (LRC) at Rensselaer Polytechnic Institute completed the four-year research project, Reducing Barriers to the Use of High-Efficiency Lighting Systems. ![]()
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