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DOE’s Public Street and Area Lighting Inventory Survey Suggests Future Growth in Adoption of Advanced Lighting Controls

DOE’s Municipal Solid-State Street Lighting Consortium (MSSLC) has released the results of a voluntary web-based inventory survey of public street and area lighting across the U.S., conducted during the latter half of 2013 and intended to improve understanding of the role of public outdoor lighting in national energy use.

Results were based on the responses of about 240 organizations that included 148 municipalities, 14 counties, 34 state departments of transportation (DOTs), 17 investor-owned utilities, and 32 municipally owned utilities, encompassing small, medium, and large populations and service territories and operating about 11 million public street and area luminaires. The number of responses varied by question and sometimes even by sub-question.

The findings suggest that advanced lighting control systems (such as digital wireless) are currently used by less than 10% of respondents, but 26% plan to install these systems within the next five years.

Click here to get the report.

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Artist Uses ETC Selador to Make His Paintings Pop

Lighting director Franck Evin used 40 ETC Selador® Desire® D22 luminaires in a London art gallery to make the colors in the artwork “pop.”

“Using ETC Selador LED is a radical way to fix the lights,” he says. “It looks fantastic!”

The challenge Evin faced was that the painter, Berlin-based Jonas Burgert, likes to paint in big, bold colors. To make the colors really stand out, he needed something that would generate bright and vibrant but well-balanced light, without the heat that would typically be generated by traditional light sources.

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After a number of tests with different fixtures, he decided on Desire D22 Lustr+ arrays, which produces a wide range of colors, from deeply saturated hues, to subtle pastels and whites. Setup was made easy by the fact that the luminaires can be programmed at the touch of a button on the back of each lamp.

Evin points out that with traditional LED fixtures, it would be difficult to achieve a balanced white. “Jonas is a specialist in mixing colors,” says Evin, “making them appear very dreamy. He is working with a new technique, with several different layers; that’s why they look so good with these lamps. He loves them, because it’s the first time you can really see the colors. It’s a different way to show the paintings.”

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“These fixtures are a great investment for the gallery,” continues Evin. “We did a test with the Selador D22s and traditional Source Four fixtures. But the D22s were smaller and lighter, and the light they produced was ideal for our needs.”

Jonas Burgert’s exhibition, Stück Hirn Blind, is on at London’s Blain Southern gallery in Hanover Square until November 22, 2014.

Interview with Philips Lighting’s Brian Bernstein on LED Luminaire-Integrated Controls

Craig DiLouie, LC recently interviewed Brian Bernstein, Global Head of Indoor Lighting Systems, Philips Lighting, about LED luminaire-integrated lighting controls.

DiLouie: How would you characterize demand for LED luminaires with integrated controls?

Bernstein: The demand for LED luminaires with integrated controls is increasing, driven by improving LED source performance, regulatory compliance requirements, and sustainability concerns. At the most basic level, all luminaires that use LED sources for illumination have some form of integrated control. All LED luminaires have memory and processing capacities, and most have some type of communications. LED luminaires with integrated controls may also offer a range of additional capabilities. Some communicate information about their own status and operations—including internal operating temperature, energy metering, and lifetime monitoring, which lighting system owners and managers can use to optimize system performance, efficiency, and maintenance. Other LED luminaires use integrated sensors to collect information on usage and environmental factors in illuminated spaces— including occupancy levels and activity patterns, temperature/humidity changes, and daylight levels… If the lighting system is integrated with a lighting management software platform on the back end, system owners and managers can store, visualize, and analyze historical information about luminaire performance and activities in illuminated spaces for decision support, greater insight into worker/customer behavior, and enhanced facility management.

Application-specific behaviors can be incorporated into the integrated controls of an LED luminaire itself, providing local, built-in responses that don’t require a lighting management system or networked controls. These responses act like a luminaire’s “reflexes,” triggered immediately and reliably by stimuli. For example, luminaires may respond to changes in daylight levels or occupancy by switching (turning on or off) or dimming (using ramp up/ramp down curves). When installed throughout a space, luminaires with local “reflex” behaviors create a distributed network of lighting controls that can potentially support all lighting system management activities.

LED luminaires with rich illumination capabilities, such as dynamic color-changing and tunable white light, can use integrated controls to offer responsive behaviors that benefit the users, as well as the managers and owners of the spaces. Targeting light levels to support specific tasks can help improve personal performance, while adjustments to color temperature can enhance occupants’ experience. Dynamic, color-changing scenes and effects can transform environments for special purposes and occasions, while full-color accent lighting can create a sense of excitement or relaxation in a space.

System architects are currently engaged in a conversation about how much control or intelligence to integrate into the luminaires themselves, and how much to distribute to other layers of the lighting system architecture. Some of the questions that need to be addressed are:

- What capabilities should go into the local “reflex” layer, the luminaire’s OS?
- What should be the responsibilities of the application/analytics/presentation layer?
- What role does middleware play in distributing lighting system intelligence, and what kind of software and devices are optimal?

Some systems thinkers are moving beyond LED luminaires with integrated controls to imagine a “digital ceiling” – a distributed computing platform that combines a network of intelligent luminaires with external control devices, databases, and software to deliver extraordinary illumination and value beyond illumination. For owners and managers of illuminated spaces, value beyond illumination includes optimized workflows and energy efficiency based on deep insight of facility utilization. For users of illuminated spaces, value beyond illumination includes the delivery of in-context information and location-based services, such as indoor wayfinding, personalized marketing (in-store couponing), and presentation of relevant online offerings.
The US lighting control market is largely analog-only at present, and much of it is wired and load-control based. Systems with analog controls don’t share data of their operations and cannot support enhanced intelligence or value beyond illumination. An enormous opportunity exists at the moment to realize value for customers by moving from analog to digital lighting control systems, up to and including fully integrated connected lighting systems with intelligent luminaires.

DiLouie: What would you estimate as present and future market share (say in five years) for LED luminaires with integrated controls compared to LED luminaires without integrated controls? What is driving demand for LED luminaires with integrated controls?

Bernstein: The percentage market share varies depending on how you define LED luminaires with integrated controls. In general, the market share for intelligent luminaires is relatively low today, but is expected to be much higher in five years. Within that timeframe, we anticipate that the market will reach a tipping point, with the center of gravity shifting from analog or load-based control to digital control, profoundly affecting the lighting industry from end to end. Once this transition is complete, we expect the lighting industry to look much more like the electronics and IT industries, rather than the traditional lighting industry of the last 100 years or so. This transition has already started to occur.

With advanced capabilities, digital control and systems integration, projects that used to be strictly about providing excellent, energy-efficient illumination are now focusing more on how to use the lighting infrastructure to deliver measureable business value to customers. Can the digital ceiling, the network of intelligent luminaires, increase the total value of illuminated spaces for owners, operators, and users? Can cities integrate intelligent lighting management practices into their comprehensive city planning, management, and resiliency initiatives? If so, the pace of adoption will accelerate.

DiLouie: Please describe a typical system. How is it specified, installed and used?

Bernstein: There are no typical systems. One of the great advantages, and also one of the challenges, of intelligent and connected lighting systems is their flexibility. Systems can be any size, from a few lights in a single enclosed office, to a network of tens of thousands of individually controllable light points distributed across several geographical areas. Systems can incorporate a wide range of capabilities, including basic illumination, comfort, and energy savings to specifically targeted, personalized illumination integrated with a variety of personalized services and in-context information. Lighting systems can focus solely on general and task illumination, or they can deliver spectacular, large-scale experiences for corporate branding, civic pride, cultural experiences and events.

There are no one-size-fits-all systems. Specifying and designing effective and successful intelligent and connected lighting systems starts with gathering customer and business needs, then tailoring a solution that delivers the specific illumination and other desired capabilities. This approach implies a greater collaboration between traditional lighting design/specification practices and other practices, such as IT systems planning and deployment, systems integration, electrical design and installation, environmental design, and architectural design. At the very least, lighting designers and specifiers who want to succeed in the new world of integrated systems need to educate themselves on the advanced capabilities of connected lighting systems, and on the role that lighting infrastructures can play in the new digital ecology.

Lighting manufacturers and forward-looking system designers need to help the lighting design community navigate this new and emerging territory by offering a range of pre-configured solutions, in which typical lighting behaviors and system responses are pre-defined in a template or recipe to deliver key value in specific applications, such as office spaces or stores of a certain size. In addition to helping specifiers better understand the potential capabilities and value of intelligent systems, these packaged offerings will provide easier installation and quicker deployment as specifiers develop expertise.

Systems thinking is the second great disruption that the lighting design community has had to absorb in the last 10 years, after the introduction of LED lighting itself. Intelligent and connected lighting systems do not spell the end of lighting design, but the beginning of an expanded and more central role for lighting designers. With spectrally tunable digital light available in virtually any form factor – as well as the ability to embed LED light sources in the environment and make them responsive to changing conditions and the preferences and habits of individuals – lighting designers can have a profound effect on the health, comfort, safety, and effectiveness of people, and on sustainability, energy efficiency, and resiliency.

DiLouie: What are the advantages of luminaire-integrated controls for the lighting designer?

Bernstein: With intelligent and connected LED-based systems, lighting designers can be further involved in delivering optimized illumination and value beyond illumination. Forward-looking designers are well positioned to articulate the value of the digital ceiling and fully integrated intelligent lighting management. Designers with a good understanding of connected lighting themes and systems can participate in substantive dialogue with customers about how to use connected lighting as an approach to realizing measurable value beyond illumination. In business settings, these values include optimized facility management, HVAC (heating, ventilating, and air conditioning) cost reduction, and enhanced employee performance and satisfaction. In retail settings, these values include positive impact on top-line results, customer conversion, and customer retention. It’s possible to articulate similar outcomes and values in other contexts, such as healthcare, public, and education.

DiLouie: Installer?

Bernstein: Intelligent and connected lighting systems represent both opportunities and challenges for installers. Installers form an integral part of the value chain for both traditional lighting and intelligent lighting, but the transition from one to the other requires installers to transform their business practices. A savvy installer can increase their worth by acquiring skills in deploying intelligent and connected lighting systems, allowing them to deliver enhanced value to customers and realize the opportunity to attract differentiated, higher-margin projects.

DiLouie: Owner?

Bernstein: Facility owners are already paying to install and maintain the lighting infrastructures in the spaces they manage. By moving to connected lighting systems that distribute controlled, intelligent luminaires throughout the illuminated environment, business owners can realize significant operational and energy cost savings for a small incremental cost increase relative to a non-intelligent system. They can also optimize facility operations by using the lighting infrastructure as a pathway for information and intelligence on occupancy and activities in managed spaces. In these ways, facility owners can realize the advantages both total cost of ownership (TCO) and total value of ownership (TVO) from initial hardware and installation costs equivalent to traditional systems that deliver less value.

DiLouie: Distributor?

Bernstein: Like installers, distributors have an opportunity to embrace the digital ceiling and become part of the intelligent LED lighting revolution. Not every application requires intelligent luminaires, but developing expertise in this space can extend distributors’ repertoire and differentiate them from competitors. A distributor that positions itself as the go-to practice for the latest and greatest information about cutting-edge lighting technology has a distinct advantage over a traditional lamps-only distributor.

DiLouie: What are ideal applications for LED luminaires with integrated controls?

Bernstein: There are many! A basic application may consist of occupancy and daylight sensors integrated into ceiling troffers to switch luminaires on and off in an open floor plan or enclosed office. A more sophisticated application may call for integrating all luminaires with a facility’s IT network to collect real-time and historical occupancy information that facility managers can use to evaluate space utilization, increase HVAC and facility maintenance efficiency, and fine-tune illumination rules to achieve the optimal balance between user experience and energy efficiency.

We see value for interior applications in offices, retail environments, schools, hospitals, sports arenas and many, many other spaces, but we also see tremendous opportunities for incorporating intelligence into outdoor roadway, area, and site lighting applications. For these applications, the largest impacts on TCO and TVO relate to asset management and tightly controlling light levels based on activity and environmental factors. Point-by-point roadway luminaire status via a single dashboard or view, for instance, can dramatically increase maintenance efficiency and contribute to good safety practices.

DiLouie: What are the disadvantages of this approach to lighting control? Putting it another way, for what applications or application conditions would this approach be unsuitable?

Bernstein: Done right, integrated connected lighting systems should present no disadvantages. System designers must always keep in mind that the first responsibility of a lighting system is to deliver excellent illumination. The “beyond illumination” capabilities that a connected lighting system can provide should never come at the expense of excellent illumination.
As for suitability, it’s important to consider where intelligent illumination is required and where traditional illumination may be sufficient. In office buildings, highly occupied spaces can benefit from intelligent luminaires, while many common and utility spaces – such as loading docks, stairwells, bathrooms, and hallways – can have conventional luminaires with separate or central controllers to turn lighting on/off for basic comfort, task support, convenience, and energy savings. Through the use of gateways and other networking and integration devices, application spaces that do not require intelligent luminaires can still be part of a facility-wide connected lighting system.

DiLouie: What are typical pitfalls with this approach, and how can they be mitigated through good design and installation practices?

Bernstein: The key to good design and installation practices is to know what measurable business value a given customer wants to realize, and then deliver a system that supports that value without compromising excellent illumination.

As in factory automation and business systems, success is predicated on defining the desired outcomes prior to deployment. Approached in this manner, system design can reduce cost by specifying intelligent luminaires only where needed for specific and relevant purposes. Ideally, you use a hybrid approach in which you define a common facility-wide system architecture that offers management and control of both intelligent and non-intelligent luminaires from multiple suppliers. You can install the appropriate luminaires for your various illumination needs in the context of a connected lighting system that delivers illumination and targeted, measurable business value beyond illumination.

DiLouie: Many of these packages feature controls that are wireless. What are the advantages and disadvantages of this control method?

Bernstein: Wireless is one technology appropriate for providing the communications portion of an intelligent luminaire. There are also many wired options, including DALI, Ethernet, power line carrier (PLC), and 0-10V control. The key is not only how the data gets the last few feet to and from the luminaire, but how the entire system can use a number of technologies to minimize initial /deployment costs while realizing measurable business value. To realize its value, wireless must find its place as part of an integrated system – alongside in-luminaire and independent sensors, panels, and switches – as well as the potential integration with building management systems.

Wireless can be effective method to deliver data to a luminaire, but it does not work well in all environments. Wireless is most effective in very open areas, such as warehouses, open-plan offices, and classrooms. It may also be a good option in retrofit situations. In renovations and new construction, Power-over-Ethernet (PoE), and other wired approaches, can be very economical in terms of first and deployment costs.

Keep in mind that purchasing wireless from one vendor, luminaires from another, and integration services from a third can be an expensive proposition. Much more attractive is an integrated wireless/luminaire solution from a single vendor.

DiLouie: What protocols are most popular? What are the pros and cons of each?

Bernstein:

• Wireless
Pros: Retrofit, potentially fewer wires
Cons: Relatively high inital cost, no standards for lighting, can be unreliable for high-bandwidth lighting control (for dynamic and color-changing effects and light shows, for example)
• Power-over-Ethernet (PoE)
Pros: Easy installation, easy integration
Cons: Limited wattage per fixture, no standards for lighting
• DALI
Pros: Established (in Europe)
Cons: Hard to commission, expensive, limited data, not well established yet in US
• Powerline Carrier (PLC)
Pros: Uses existing infrastructure
Cons: Interference, not currently available for lighting
• Load control, 0-10V
Pros: Standard
Cons: No data, no intelligence

DiLouie: What is the potential for integrated non-lighting sensors into LED luminaires? What is the market outlook for this approach?

Bernstein: Occupancy sensors can trigger lighting, collect data on facility utilization and maintenance activities, support room scheduling, and enhance security. Visible light communications (VLC) can be used for luminaire and connected lighting system commissioning, as well as indoor positioning and location-based services offering ambient intelligence to employees and consumers. Some sensors and measurement devices—cameras, toxic gas sensors, and smoke detectors, for example—can be used for capabilities unrelated to lighting. Deciding whether to integrate non-lighting sensors into the lighting infrastructure, or install them as a separate sensor network, is sensor- and application-dependent. Do you need a smoke detector or a security camera in every luminaire? The answer requires an evaluation of the application space and other factors, such as the cost that the sensor would add to each luminaire.

DiLouie: Does the increase in adoption of lighting controls, and specifically LED luminaires with integrated controls, create any opportunities for industry players to sell software and services? What players will be involved, what could they offer, and how would they benefit?

Bernstein: Absolutely. The lighting industry is beginning to look more like the electronics industry, with a strong emphasis on software and services. Thanks to the connected lighting system architecture, existing industry segment consulting groups (such as those in retail, for example) can deliver enhanced and significant value to their customers through data collection and targeted, location-based communications within a facility.

Similarly, lighting controls companies are starting to transition from analog-only controls to the new world of digital controls. Because the value of a connected lighting system is directly proportional to the number of integrated devices that the system supports, illumination providers are adding controls capabilities, or partnering with controls companies. We have no doubt that the vertical integration of intelligent luminaire electronics, luminaires, controls, analytics, and visualization will deliver unique value to customers.

DiLouie: If you could tell the entire electrical industry just one thing about LED luminaires with integrated lighting controls, what would it be?

Bernstein: With LED-based lighting systems, you have devices that include embedded processing capacity, memory, and communications installed throughout your facility, creating a digital ceiling. What do you want to do with the power of this digital ceiling? Connected lighting systems can deliver tremendous TCO and TVO, simply by leveraging the lighting infrastructure that you’ve already installed and maintained.

DiLouie: Is there anything else you’d like to add?

Bernstein: The best way forward to address the largest number of customer needs in the global marketplace is to deploy hybrid connected lighting systems that allow you to specify the optimal luminaires for various applications, independent of their control capabilities. With hybrid systems architectures, you can use both conventional and LED luminaires from multiple manufacturers, combine multiple methods of distributing data and power, and use multiple wireless communications methods to flexibly deliver the specific capabilities required by a customer’s specific lighting application and business needs. The more devices you can integrate and connect within a lighting system, the greater the value that facility owners and users of spaces can realize.

Hubbell Building Automation Unveils New Family of Energy-Saving LightHawk2 Lighting Control Sensors

Hubbell Building AutomationHubbell Building Automation (HBA) has enhanced its popular wall switch vacancy and occupancy sensor family with the introduction of the LightHAWK2™. From conference rooms, offices, and hallways to storage areas, restrooms, and hotel guest rooms, the LightHAWK2™ sensors provide building operators superior control and energy-savings.

Nowadays, ever-evolving energy code requirements and the increasing demand for energy-saving products have made lighting control sensors a must-have for building owners and managers. Building on HBA’s history of innovation, the new LightHAWK2™ family of wall switch vacancy and occupancy sensors offer a variety of options and features that fulfill the demands of even the most discerning user.

Different lighting applications require different sensor technologies that deliver the best sensor coverage and performance. Fully understanding this, HBA has made the LightHAWK2™ available with the most reliable indoor motion sensor technologies available today including: Passive Infrared (PIR), Ultrasonic (US), and Dual Technology.

The enhanced LightHAWK2™ family includes six different options including the most versatile and widely used version, the LightHAWK2™ Dual Technology Sensor. Featuring HBA’s patented IntelliDAPT® technology, the Dual Technology Sensor combines US and PIR technologies for unequaled motion detection.

Three new options in the family include the LightHAWK2™ Dimming PIR Sensors featuring 0-10V dimming; the LightHAWK2™ Night Light PIR Sensor combining PIR technology with the added safety and comfort of a night-light; and the LightHAWK2™ Low Voltage Sensor designed to work with a power pack or as part of a lighting control system.

All LightHAWK2™ models include a built-in photocell that when activated during commissioning, allows the lights to remain off when there is sufficient natural light. This feature provides even greater energy savings.

Additionally, LightHAWK2™ wall switch sensors are built to last and feature HBA’s RhinoTuff™ vandal-resistant lens and a wrap-around galvanized steel-mounting strap.

Click here to learn more.

Market Research Suggests High Degree of Confidence with LED Lighting and Controls

Given current adoption of commercial building energy codes, conventional wisdom indicates that LED lighting is frequently specified with automatic lighting controls. However, there is little public data available concerning market penetration of LED lighting, how often it is specified as controllable and with lighting controls, owner preferences, and how satisfied specifiers and installers are with these technologies.

To develop useful information, in October and November 2014, three surveys were conducted among target subscriber segments of LightNOW, a bi-weekly newsletter published by the author’s company, and lightingCONTROL, a monthly newsletter published by the Lighting Controls Association. The results suggest robust market penetration for LED sources in new luminaire sales and a fairly high degree of preference and confidence related to LED lighting paired with automatic lighting controls.

It’s important to note the results are projectable to the parent lists—e.g., manufacturers subscribing to the LightNOW newsletter—not the industry as a whole. Nonetheless, the results are suggestive of trends in the industry.

The LightNOW Survey

The first survey targeted 1,679 individuals working for lighting manufacturers and subscribing to LightNOW, and sought to answer two questions. What is the current market penetration of LED lighting in new luminaire sales, and how many of these luminaires are controllable?

Among the 80 respondents (4.8 percent response rate), 45 were identified as representing companies that sold luminaires for the U.S. nonresidential building market that included a mix of LED and traditional light sources. By focusing on these respondents and excluding respondents among the many new companies that exclusively sell LED luminaires, an interesting picture emerges:

• The large majority of these respondents report growth in their solid-state product sales revenue in 2014 over 2013. About six out of 10 (62 percent) and one out of four (26 percent) said they experienced significant or modest growth, respectively.

• Thirty-five respondents were identified as manufacturers of luminaires for indoor applications. The average respondent reported that 46 percent of their known 2014 U.S. indoor luminaire sales (in terms of units) were sold with LED light sources.

Lighting manufacturers of indoor luminaires with both LED and traditional light sources

Lighting manufacturers of indoor luminaires with both LED and traditional light sources

• Among these 35 respondents, the average respondent reported that 75 percent of their indoor luminaire product line is sold with dimming being standard or as a standard option, while 25 percent is non-dimmable.

Respondents were also asked about outdoor lighting sales, but the response was disqualified due to the total number of respondents being fewer than 30, the minimum threshold required for statistical validity.

The above results indicate significant growth in the penetration of LED lighting among the target population. They also suggest that many LED indoor luminaires sold into the nonresidential U.S. market by this population are controllable as a standard or standard option.

This information sets the stage for the research conducted by the Lighting Controls Association.

Lighting Controls Association Surveys

The Lighting Controls Association conducted two surveys of 1,756 electrical engineer (59 qualifying respondents, an effective response rate of 3.4 percent) and 3,508 electrical contractor (83 qualifying respondents, an effective response rate of 2.3 percent) subscribers to its monthly newsletter. Respondents qualified by indicating they specify, recommend and/or approve luminaires and lighting controls for commercial projects in the United States. The goal was to create a snapshot of behavior and satisfaction regarding LED lighting and lighting controls.

The electrical engineer respondents are frequent specifiers of LED lighting and controls. Ninety-six percent reported that they specified LED luminaires intended for operation with automatic lighting controls in one or more commercial building new construction projects over the past 12 months. The average respondent specified LED lighting with automatic lighting controls in roughly 75 percent of their projects completed in the previous year. The average respondent specified LED lighting as more than 50 percent of the lighting load in roughly 55 percent of their projects.

The electrical contractor respondents also indicated an appreciable level of experience with LED lighting and lighting controls. Thirty-five percent of respondents indicated they’d completed 10+ projects over the previous 12 months in which LED lighting was installed, and 24 percent indicated they’d completed 10+ projects in which LED lighting was greater than 50 percent of the installed lighting load. Twenty-eight percent completed 10+ projects in which LED lighting was installed with automatic lighting controls. Eighty-six percent said their firm installed LED lighting and automatic lighting controls over the previous year; these respondents were permitted to continue taking the survey (69 respondents).

Further, as a side note that is nonetheless of value, the average electrical contractor respondent reported that in roughly 45 percent of the commercial building projects they completed over the previous year, the lighting control system was commissioned—that is, proper installation was verified and performance tested prior to delivery to the owner.

Satisfaction with LED and controls

Responding on a 1-7 scale, with 1 being “not very valuable,” 4 being “somewhat valuable,” and 7 being “very valuable,” the average electrical engineer respondent reports that based on their experience, commercial building owners typically consider dimmable lighting to be more than “somewhat valuable” (5.2). The average electrical contractor respondent produced the same score (5.2). This suggests that many owners place a fairly high value on flexible lighting for energy management purposes as well as to satisfy visual needs.

A majority of electrical engineer respondents generally prefer to work with LED when specifying lighting controls that manually dim the lights for visual needs (74 percent), automatically dim to save energy (84 percent), or automatically switch to (58 percent) compared to fluorescent, HID and incandescent sources. The average electrical engineer respondent reports that the LED lighting they specify is dimmable and designed with dimming controls “often” (5.0 on a 1-7 scale, with 1 being “never,” 2 being “very rarely,” 3 being “rarely,” 4 being “sometimes,” 5 being “often,” 6 being “very often,” and 7 being “always”). This suggests that the LED source is a popular pairing with lighting controls for both energy management and visual needs among respondents.

Electrical engineers

Electrical engineers

Given the above, it is not surprising that the average electrical engineer respondent is fairly confident about these technologies. Responding on a 1-7 scale, with 1 being “not satisfied,” 4 being “somewhat satisfied,” and 7 being “very satisfied,” the average respondent is more than “somewhat satisfied” with the performance of LED lighting (5.7), performance of LED lighting when operated by automatic lighting controls (5.6), and technical support provided by LED lighting (5.2) and lighting control (5.2) manufacturers. The average respondent is “somewhat satisfied” with the ease of commissioning lighting controls for LED lighting (4.1), suggesting greater potential for improvement than the other areas studied.

Electrical engineers

Electrical engineers

Satisfaction ratings among electrical contractor respondents also indicated a high degree of confidence in the technology. The average electrical contractor respondent reported being more than “somewhat satisfied” with ease of installation of LED lighting (5.3), ease of installation of lighting controls for LED lighting (5.0), performance of LED lighting (5.9), and performance of LED lighting when operated by lighting controls (5.6). The average respondent is “somewhat satisfied” with the ease of commissioning lighting controls for LED lighting (4.6).

Electrical contractors

Electrical contractors

The average electrical contractor respondent further reported (on a 1-7 scale, with 1 being “never” and 7 being “always”) that they are called back to service a problem with the control system within three months of installation “rarely” (3.2), and that when a problem occurs, it’s easy to identify the non-functional component “sometimes” (4.6). Installation of lighting controls results in success without overcoming physical and/or programming challenges “sometimes” (4.4). The average respondent requests manufacturer pre-training on the control products “rarely” (3.6), and reaches out to the manufacturer for commissioning support “sometimes” (4.0).

Despite these values leaning toward the positive, there appears to be potential for improvement. Overall, the results indicate these respondents are generally satisfied with installation, commissioning and performance of lighting controls, but that installation and commissioning can sometimes prove challenging.

Electrical contractors

Electrical contractors

Other preferences

A majority of electrical engineer respondents generally prefer to specify hardwired (80 percent) over wireless (11 percent, with 9 percent having no preference) technology for connecting automatic lighting controls used to control LED lighting. For spaces where installing low-voltage control wiring would be costly or difficult, however, preference for wireless jumps to 24 percent.

Electrical engineers

Electrical engineers

Electrical contractor respondents showed a stronger preference for wireless, with 30 percent preferring to install it in challenging applications and 23 percent preferring to install it generally in commercial spaces.

Electrical contractors

Electrical contractors

This suggests that wireless lighting control has gained in popularity for applications where installing control wiring is difficult or cost-prohibitive, and has even achieved a fair degree of acceptance for other applications. It also suggests wireless control is more preferable to installers.

A majority of electrical engineer respondents (67 percent) generally prefer to work with 0-10V as a control communication method compared to digital (13 percent), with the remainder having no preference. Nonetheless, the average electrical contractor says typical owners consider the ability to zone luminaires individually more than “somewhat valuable” (5.1), a popular feature of intelligent lighting systems. This suggests that digital lighting control, despite its many benefits and strong compatibility with the LED light source, has not yet achieved major market share against the traditionally popular option, at least among these respondents.

The average electrical engineer respondent specifies LED luminaires with controllers and sensors integrated into the luminaire “sometimes” (4.0). Nearly one in four electrical contractor respondents (24 percent) generally prefer to install LED luminaires with the lighting controller and any sensors integrated into the luminaire, while 40 percent prefer to install them as separate components and 36 percent had no preference one way or the other.

Electrical contractors

Electrical contractors

The average electrical engineer respondent selects a lighting control system that is intended to be configured for central operation at a single workstation “sometimes” (3.8). The average respondent also stated that owners typically consider lighting control systems that produce energy consumption and performance monitoring data to be “somewhat valuable” (4.4). The average electrical contractor respondent agreed in their own evaluation of value perceived by typical owners (4.4). One interpretation is that this capability is not generally preferable but may be preferred for some applications such as larger buildings.

Electrical engineers

Electrical engineers

The average electrical engineer respondent reported that owners typically consider lighting control systems that are easily integrated into other building systems to be “somewhat valuable” (4.9). The average electrical contractor respondent again agreed (4.9), but added that automatic lighting controls they install are integrated with a building automation system “rarely” (3.9), again suggesting stronger preference for certain applications but not others.

The average electrical engineer respondent reported that owners typically consider lighting control systems that are scalable to accommodate future expansion to be more than “somewhat valuable” (5.2). Again, the average electrical contractor respondent agreed (5.2).

The ability to control the color shade of white light is not as popular as the ability to control intensity, with the average electrical engineer respondent reporting owners typically consider white light color tuning to be less than “somewhat valuable” (3.1). Again, the average electrical contractor respondent agreed, though these respondents perceive somewhat higher interest among owners (3.9). This may be because it is a relatively new capability that is now gaining awareness.

Electrical engineers

Electrical engineers

Electrical contractors

Electrical contractors

LCA TV: WiHUBB by Hubbell Building Automation

This short video, produced by the Lighting Controls Association at the 2014 LIGHTFAIR event, introduces the building industry to Hubbell Building Automation’s wireless WiHUBB Lighting Control system.

Städel Museum Wins IES Lighting Control Innovation Award Of Merit

The Lighting Control Innovation Award was created in 2011 as part of the Illuminating Engineering Society’s Illumination Awards program, which recognizes professionalism, ingenuity and originality in lighting design. LCA is proud to sponsor the Lighting Control Innovation Award, which recognizes projects that exemplify the effective application of lighting controls in nonresidential spaces.

This month, we will explore the role that lighting controls play in enhancing the visitor experience at Städel Museum. Lighting and control design by Andreas Schulz, Tanja Baum, Alexander Rotsch and Thomas Möritz, lighting designers for Licht Kunst Licht AG. Photography by Norbert Miguletz. Lighting by Zumtobel.

The inner courtyard, or Städel Garden, is studded with 195 circular skylights. They range from 1.5 meters in diameter along the sides to 2.5 meters in the center. The exhibition space beneath adds 3,000 square meters to the museum.

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The skylights are equipped with a complex system of horizontal, movable screens.

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Downlights are recessed into the coffered ceiling; a peripheral track holds adjustable LED projectors for accent lighting.

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Looking back towards the staircase, all lighting equipment is confined to two troughs with track-mounted fully adjustable LED spotlights for general as well as display accent lighting. All LED lighting fixtures have adjustable color temperatures.

4

The circular skylights are omnipresent in the underground Gartensaal. The domed ceiling appears weightless as it is supported only by slim stilts that are concealed by light partition walls.

5

The perimeter of the skylights carries tightly arranged LED boards that supplement the natural light. Both intensity and color temperature of the lighting elements are individually controllable within each skylight. The narrow gap between the diffuser and the concrete edge accommodates connecting points for LED spotlights and framing projectors.

6

Different conservational or curatorial requirements may apply to each of the zones of the hall, and precise target horizontal or vertical illuminance levels are achieved by measuring out the daylight ingress through a series of reduction layers, up to a full black-out, that automatically uncurls within the skylight. Artificial lighting is then added as required. A complex control
system coordinates the daylight reduction as well as the diffuse LED panels and possible spotlights whilst adapting to a flexible zoning of the hall.

7

A diaphanous fabric material stretches over the skylight apertures. It diffuses the incoming light but still allows one to get a sense of the blue sky and connect with the exterior.

8

Universal Launches True Blue Merchandising Program for Distributors

Universal Lighting Technologies recently launched True Blue, a new merchandising program that supplies bright and attractive point-of-purchase items to its loyal distributors.

Signage and other merchandising materials are designed to help increase sales and customer awareness of key product opportunities on the distributor level. Displaying these support materials gives Universal’s distributors the opportunity to engage customers, increase counter sales, drive repeat business, and prominently place high interest items to leverage branch counter area.

One of the key benefits of the program is helping distributors endorse the new CENTO product family of sensors and power packs. The promotion allows distributors to stock an initial amount of sensors, and receive a free CENTO Awareness Kit. The kit includes literature, aisle blade, floor decal, shelf wobblers and an adhesive countermat. These items help the distributor inform their customers about Universal’s sensor and power pack components – a key part of today’s comprehensive lighting control strategy.

The new Universal merchandising items include a variety of options. From acrylic counter units to put sample products and literature on display at a distributor counter, to the very popular counter stools, and even a ceiling mounted light thief box, which illuminates Universal’s complete product portfolio.

Lutron’s Pekka Hakkarainen Receives NEMA Kite & Key Award

The National Electrical Manufacturers Association (NEMA) recently honored three Kite & Key award winners during its annual meeting, Illuminations Weekend, on November 8, in San Diego, California.

This year’s winners are Pekka Hakkarainen, PhD, vice president of Lutron Electronics Company; Kevin Coderre, technical director at RSCC Wire & Cable; and Mike Leibowitz, program manager at NEMA.

Dr. Hakkarainen has been involved in NEMA activities since the mid-1990s. His first chair position at NEMA was with the Lighting Controls Council from 2002 to 2004. During his tenure as chair, the council became the Lighting Controls Section in late 2004. Dr. Hakkarainen is the immediate past chair of the Lighting Systems Division, and currently chairs the High Performance Buildings Council and the Daylight Management Council. He has also served on the board of the Global Lighting Association, of which NEMA is a member.

Mr. Coderre became involved with NEMA High Performance Wire and Cable Section in 1990, developing the next generation aerospace wires. He first served as a chair of the 7HW Shipboard Technical Committee beginning in the mid-1990s until 2000, and then again from 2001 until 2011. This committee, which he now vice-chairs, upgraded Navy cable specifications with state-of-the-art electronic cables. He also has chaired the High Performance Wire and Cable Aerospace Technical Committee since 2004. This committee is tasked with converting numerous military standards into NEMA documents. The most significant is ANSI/NEMA WC 27500, which is the main cable standard for most aerospace platforms worldwide.

Mr. Leibowitz is the first NEMA staff person to be honored with a Kite & Key award. Since becoming a program manager in 1991, he has led the building wire and cable, conduit fittings, flexible cord, magnet wire, and outlet box industries in meeting their technical and product standardization objectives. During this time, Mr. Leibowitz also served as secretary of IEC Technical Committee 55 Winding wires; secretary of the U.S. National Committee Technical Advisory Groups for IEC SC 23A Cable management systems, IEC TC 55 Winding wires, IEC TC 90 Superconductivity, and IEC TC 113 Nanotechnology for electrical and electronic products and systems; and secretary to several technical harmonization committees of CANENA, the Council for Harmonization of Electrotechnical Standards in the Americas.

Lutron to Host Twitter Chat on Properly Managing Daylight with Lighting Controls

Lutron Electronics will hold its first Twitter chat on Tuesday, November 11, at 2 p.m. EST. The discussion will focus on properly managing daylight with lighting controls. Lutron’s Brent Protzman, PhD, LC, CEM Manager – Energy Information & Analytics, will serve as the moderator and will share his expertise with the lighting industry on how to effectively design for daylighting.

Twitter users can follow @Lutron and use the hashtag #LutronChat to participate in the discussion. You can also search for “#LutronChat” on Twitter to see everything said during the chat. Lighting industry professionals who specialize in indoor and outdoor lighting interested in enhancing the visual environment of a space are invited to tweet their questions, concerns and opinions during the chat.

Dr. Protzman will share insights on the effect of daylighting design, achieving daylight autonomy, benefits of dynamic fenestration, best practices of daylighting design and ways to manage daylight glare. He will also share related tools and links to articles, whitepapers, industry news, and case studies on the topic.