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Inside Title 24

ARCHITECTURAL LIGHTING recently published an inside look at California’s tough new version of the Title 24 energy code.

Read it here.

Lighting and Control Aspects of ASHRAE 189.1-2014 Green Building Standard

189.1-1In November 2014, ASHRAE published ANSI/ASHRAE/USGBC/IES Standard 189.1, Standard for the Design of High-Performance, Green Buildings Except Low-Rise Residential Buildings.

The standard, which updates the previous 2011 version, covers site sustainability, water use, energy, indoor environmental quality, and the building’s impact on the atmosphere, materials and resources.

The standard provides states and other jurisdictions a green building standard in mandatory code language. These jurisdictions can adopt Standard 189.1 in whole or in part. The U.S. Green Building Council (USGBC), creators of LEED, supported the development of 189.1 because LEED is a voluntary green building rating system, not intended to be a code. Another green building model code is the International Green Construction Code (IgCC), published by the International Code Council (ICC), which recognizes 189.1 as an alternative compliance standard.

In August 2014, ARCHITECTURAL RECORD reported that the USGBC, ASHRAE, AIA, IES and ICC partnered to harmonize 189.1, IgCC and the LEED rating system. Under this agreement, 189.1 will provide the baseline requirements aligned with LEED prerequisites and the IgCC. The IgCC will provide as an alternate set of prerequisites for LEED. ASHRAE, USGBC and IES will sponsor IgCC, and the ICC and AIA will sponsor 189.1. Integrated development will be managed by a steering committee.

The result will be a streamlined and effective set of regulatory options for jurisdictions across the United States, aligned with LEED. Regulators get the right tool for the job, adopting code-ready language instead of trying to codify LEED. Designers ideally will get less confusion.

The lighting sections of ASHRAE/IES 189.1-2014 primarily cover light pollution, energy efficiency, daylighting and occupant lighting control. Each major section is divided into three main areas: Mandatory Requirements plus a Prescriptive Option and a Performance Option. As indicated by its name, Mandatory Requirements are mandatory. The Prescriptive Option entails completing the Mandatory Requirements plus a series of prescriptive requirements. The Performance Option involves simulation and related calculations.

This special report by the Lighting Controls Association summarizes the lighting and control requirements. Note that for each feature described, exceptions may apply. Consult ASHRAE/IES 189.1-2014 and the authority having jurisdiction for specific requirements and interpretation relevant to your project.

Lighting and controls

In regards to energy-using building systems, ASHRAE/IES 189.1-2014 references the ASHRAE/IES 90.1-2013 energy standard as a baseline. Lighting and controls must comply with Section 9 of 90.1-2013 with some modifications and additions.

Energy Efficiency (Section 7)

Mandatory Requirements:

1. For lighting systems constituting a connected load greater than 50 kVA, energy consumption must be measured using a device with remote communication capability. At a minimum, data must be recorded at least hourly and provided at least daily. Data must be transmitted to a data acquisition system that stores the data for a minimum of three years. The system must be capable of generating user reports at least monthly and containing hourly, daily, monthly and annual energy consumption. Section 7.3.3.

189.1Prescriptive Option requirements:

1. Interior and exterior lighting power allowances lower than 90.1-2013 are in effect. This is accomplished by referencing a factor in a table. For example, using the Building Area Method, the lighting power allowance for office building areas is 0.82W/sq.ft. Standard 189.1-2014 presents a multiplier of 0.95, so if using the Building Area Method, the designer would have an interior lighting power allowance of 0.95 x 0.82. Section 7.4.6.1.

2. Satisfaction of ENERGY STAR performance criteria is required for installed lighting that includes integral LED lamps. If the Alternate Renewables Approach is taken (Section 7.4.1.1.2), satisfying ENERGY STAR criteria is also required for lamps and both commercial and residential luminaire types covered by the labeling program. Section 7.4.7.3.

3. Hotels and motels with more than 50 guest rooms must install automatic controls for the lighting, switched outlets, TV and HVAC equipment serving each guest room. Within 30 minutes of the room becoming vacant, the control device must automatically turn OFF power to lighting and switched outlets. Captive keycard systems are not recognized for compliance. Section 7.4.3.9.1.

4. Lighting in commercial and industrial storage stack areas must be controlled by an occupancy sensor. The sensor must reduce lighting power by at least 50% within 20 minutes of the stack area becoming unoccupied. Section 7.4.6.2.

5. Continuously illuminated security and emergency lighting is limited to 0.1W/sq.ft. Additional security and emergency lighting can be added as long as it is controlled by an automatic control that turns it OFF when it is not needed. Section 7.4.6.3.

6. Sign lighting that operates more than one hour per day during daylight hours must be operated with controls that automatically reduce lighting power by at least 65% for one hour after sunset to one hour before sunrise. A notable exception is metal halide, high-pressure sodium, induction, cold cathode and neon sign lighting that automatically reduces lighting power by 30% during the same hours. Section 7.4.6.4.

7. All other sign lighting must feature controls that automatically turn the lighting OFF during daylight hours. The controls must automatically reduce the lighting power by at least 30% for period from midnight (or within an hour of the end of business operations, whichever is later) to 6:00 AM (or business opening, whichever is earlier). Section 7.4.6.4.

8. Exterior lighting serving uncovered parking areas must be controlled by a photosensor that automatically turns OFF the luminaire during daylight hours. The lighting must also feature an astronomical time switch that turns the luminaires OFF on a schedule. Section 7.4.6.5.

9. An exterior luminaire serving an uncovered parking area, if larger than 50 rated input watts and mounted 24 ft. or less above the ground, must be automatically reduced based on occupancy. Specifically, lighting power must be reduced by at least 40% when no activity has been detected in the controlled area after 15 minutes or less. No more than 1500W of lighting power can be controlled by a single controller. Section 7.4.6.5.

Note that the above or any other controls required in 189.1-2014 that coincide with stretch control options in 90.1-2013’s Table 9.6.3 cannot be applied to earn bonus power credits.

Site sustainability (Section 5)

Mandatory Requirements:

1. Exterior luminaires must have controlled backlight and uplight emissions plus glare control so as to minimize “light pollution.” Exterior luminaires must meet BUG (backlight, uplight, glare) ratings, referenced in IES TM-15, Addendum A. Section 5.3.6.

2. Exterior luminaire uplight emission (percentage of light emission above 90 degrees) is restricted based on lighting zone, in turn based on population density (see the definitions). Section 5.3.6.

Indoor Environmental Quality (Section 8)

Mandatory Requirements:

1. Lighting in at least 90% of enclosed office spaces (<250 sq.ft. of floor area) must provide multilevel lighting control or bilevel control with separate task lighting. Section 8.3.5.1.

2. Multilevel lighting control is also required in multioccupant spaces, including conference rooms, meeting rooms, multipurpose rooms, classroom (or other training or lecture rooms), ballrooms, cafeterias and gymnasiums. Each control device must be labeled with its light settings. Section 8.3.5.2.

3. Gymnasium, auditorium, ballroom and cafeteria lighting must be zoned as at least two independently controlled groups of luminaires. Section 8.3.5.2.

Prescriptive Option:

1. Luminaires installed 3 ft horizontally of any permanently installed presentation surface (such as a whiteboard, chalkboard or projection screen) must be controlled separately from other general lighting in the space. Each control device must be labeled with its light settings. Section 8.4.3.

Performance Option:

1. Lighting must be provided for each permanently installed presentation system. The lighting must be controllable by the occupant or occupants. Each control device must be labeled with its light settings. The light settings at a minimum should include those below, depending on the type of presentation system.

2. Permanently installed whiteboards: The lighting and controls must be able to light the whiteboard with a vertical light level of an average of 300 lux (about 28 footcandles, rounding up) or higher. The average-to-minimum light level ratio across the whiteboard’s full area must be 3:1 or lower.

3. Permanently installed screens for front-screen projection units: The lighting and controls must be able to light the screen to a vertical light level of 50 lux (about 5 footcandles, rounding up) or lower. Maximum-to-average light level ratio across the full screen must be 2:1 or lower. Compliance is not met by turning OFF all luminaires in the space.

4. Permanently installed screens for rear-projection units: The lighting and controls must be able to light the screen to a vertical light level of 150 lux (about 14 footcandles, rounding up). Maximum-to-average light level ratio across the full screen must be 2:1 or lower. Compliance is not met by turning OFF all the luminaires in the space.

Cuyahoga County Public Library-Garfield Heights Branch 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 a library’s energy-efficient lighting, designed to contribute to a goal of the building being designated as LEED Silver. Lighting control design by Ardra Zinkon, lighting designer, Tec Studio. Lighting controls by Lutron Electronics.

With LEED Silver as the goal, high-end expectations are met within this 30,000-sq.ft. new construction library branch through careful planning and integration of the lighting design solution. The lighting system for this project operates at a minimum of 16% less than 90.1 primarily through the use of fluorescent product to maintain the budget.

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The Café is illuminated with fluorescent pendants equipped with DALI dimming ballasts. Suspended CMH track fixtures highlight the display of current periodicals. The track is equipped with a current-limiting device for reduced energy consumption, and is tied to the DALI system through the use of an addressable switching module.

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As daylight filters in through the clerestory windows, continuous runs of linear fluorescent provide task illumination throughout the open architecture; at stack and computer stations and respond to RF photosensors. The linear pendants provide a hint of uplight emitted from the side cut-outs, ensuring contrast ratios are within recommended practice.

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Stack Areas require higher illumination than Seating or Computing, creating a challenge in an open environment. Ballast tuning was used within the multi-layered control strategy. An estimated savings of 25% has been calculated for these areas.

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Free-standing meeting rooms reside within the open structure. Fluorescent pendants provide even illumination, and are controlled via local occupancy sensor. Lighting can be easily re-configured (if needed) due to the use of a raised floor system for wiring and RF controls.

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Skylights within the teen area bring natural light into the space to ensure the location remains attractive to visitors, tucked into the back of the library. Daylight Harvesting has been used throughout the space for additional savings.

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In addition to reduced lighting power density and the innovative use of controls, this project has been approved for an innovation credit following the LEED credit for Sustainable Purchasing: Reduced Mercury in Lamps.

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LCA TV: Encelium’s New and Improved Energy Management System

This short video, produced by the Lighting Controls Association at the 2014 LIGHTFAIR event, introduces the building industry to Encelium’s new and improved Energy Management System.

Lighting Controls Innovation Award Call for Submissions

The Illuminating Engineering Society’s 2015 Illumination Awards program is now open for submissions.

This program recognizes individuals for professionalism, ingenuity and originality in lighting design based on the individual merit of each entry. Judging is based on how well the lighting design meets the specified criteria for the category the project is entered in. Anyone may enter the program.

The Illumination Awards program is comprised of five program categories, one of which is the Lighting Controls Innovation Award Sponsored by the Lighting Controls Association. This award recognizes projects that demonstrate exemplary use of lighting controls in nonresidential applications. Click here to see previous winners.

Other awards include:

* The Edwin F. Guth Memorial Award for Interior Lighting Design
* The Outdoor Lighting Design Award Sponsored by Eaton’s Cooper Lighting Business
* The Aileen Page Cutler Memorial Award for Residential Lighting Design
* The Energy and Environmental Lighting Design Award Sponsored By Osram Sylvania

The submission process will close on February 14, 2015 at 11:59pm EST.

Click here to learn more and subject a project.

California Approves Lighting Controls Acceptance Test Technician Certification Providers

The Energy Commission has approved the California Advanced Lighting Controls Training Program (CALCTP) and the National Lighting Contractors Association of America (NLCAA) as Lighting Acceptance Test Technician Certification Providers.

This action gives CALCTP and NLCAA authorization to train and certify qualified individuals and employers beyond the interim period established by the 2013 Energy Standards. Individuals interested in becoming a Certified Lighting Controls Acceptance Test Technician or Employer can apply to either of these Providers.

Click here to learn more.

Lutron’s Jim Yorgey Elected NLB Chair

James M. Yorgey, PE, LC, CTS, Lutron Electronics Company’s technical applications manager, has been elected chair of the National Lighting Bureau.

Mark Lien, L.C., CLEP, CLMC, HBDP, LEED BD&C, government & industry relations director for Bureau-sponsor OSRAM SYLVANIA, was elected vice chair. Cary S. Mendelsohn (Imperial Lighting Maintenance Company), representing the interNational Association of Lighting Management Companies (NALMCO), was elected secretary/treasurer.

Philips Lighting Controls Offers Online Courses

Philips Lighting Controls offers free online courses covering operation, benefits, protocols, indoor controls, outdoor controls and architectural lighting controls.

Check out the course offering here.

Daintree Networks Takes Building Energy Management into the Cloud

Daintree Networks recently launched an offering that merges cloud-based computing with building automation technology to enable comprehensive energy management that far surpasses simple lighting control.

Daintree’s Building Energy Management as a Service (BEMaaS™) approach makes its ControlScope™ software available as a subscription-based cloud application instead of locally on a physical server. Choosing this option will give customers a simple, cost-effective and highly scalable solution for managing all facets of building energy loads and related applications with a low total cost of ownership (TCO).

Additionally, customers can buy monitoring and optimization services that allow them to continuously stay on top of changes in their building operations by leveraging expertise from Daintree Networks’ building energy professionals. This is a true end-to-end energy management service offering that spans various building applications and control down to individual devices including lighting, thermostat, plug load, fans and more.

Click here to learn more.

OSRAM SYLVANIA Releases Next Generation of Encelium Polaris 3D Software

OSRAM SYLVANIA has released the latest version of its flagship ENCELIUM® lighting management software – Polaris 3D®. ENCELIUM by OSRAM is a scalable lighting control system.

Accessible anytime, anywhere via an Internet connection, the Polaris 3D software is the core element of the ENCELIUM system that facilitates the commissioning, usage and data analysis of the lighting installation. The 3D color gradient visualization shows how efficient an installation is and immediately reports the savings achieved. Now, the new Polaris 3D 3.5.1 software is even easier to use and offers additional flexibility for buildings to comply with local building codes, offer a comfortable work environment for employees, reduce their lighting energy consumption by as much as 75 percent, and qualify for several points toward LEED certification.

New features and improvements include the following:

1. Polaris 3D now allows the configuration of a dual ballast equipped fixture with Cool White and Warm White lamps for Automatic Tuning of White Light. By manipulating the level of the ballasts controlling the Cool White and Warm White lamps in the same fixture, the color temperature of the light can change according to the current time of the day, providing the most suitable environment for an employee at that moment.

2. Automatic Association of Zones and Schedules decreases commissioning time.

3. A Pop-up Warning Wizard lists issues to be resolved prior to configuring a system, making it easier to view and settle them.

3. Some buildings, such as hotels, use a temporary partition wall to split a room into two areas for different functions or meetings. When the temporary partition wall is placed across the room creating two zone, Polaris 3D now can Automatically Replicate Zones for Spaces with Partition Walls so commands are automatically replicated to both zones, or they can be treated as unique spaces.

4. New Comfort Property Settings allow facility managers to set parameters for reduced lighting levels during non-peak hours of the day to still save energy, without sacrificing employee comfort. Lighting levels can be set at a reduced level when a space is not in use, but if an employee enters the semi-illuminated area, it can be set to increase around an employee as they travel, providing more comfort for the individual.

5. Users can configure lighting by Simultaneous Occupancy and Time Schedules within one zone. If a scheduled event has passed, occupancy sensing will become active.

6. Previously, if the lights were shut off for a presentation in a board room, the HVAC system might think the room was not in use and shut off the air conditioning. Now with the new Assign Occupancy Sensing by Zone & Occupancy Behavior feature, Polaris 3D can instruct the HVAC system to remain on based on true occupancy sensor status, despite the HVAC system seeing that the fixture is off.

7. Users can now Lock or Disable System Inputs Based on Triggers, such as a contact closure, schedule or zone status. These overrides can be used in situations such as a school lockdown where the principal needs to ensure lights remain on during an emergency situation.

8. Real Time Visible Status Notifications are now available, including fire alarm and emergency backup power.

9. Occupancy sensors with Built-in Push Buttons can be enabled through Polaris 3D.