continuing education systemenergy independence and security act of 2007 for federal buildings....

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This program is registered with the AIA/CES for continuing professional education. As such, it does not include content that may be deemed or

Continuing Education System

education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing or dealing in any material or product. Questions related to specific materials, methods and services will be addressed at the conclusion of this presentation.

Finelite Inc., is a registered provider with The Green Building Certification Institute. This course is USGBC-approved for one GBCI CE hour. LEED Green Associates and LEED AP’s with specialty must self-report all CE hours online through “My Credentials” at www.gbci.org .

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AIA/GBCI LearningObjectives

Study the findings of a recent research project to:

11 Review and understand why we need more 11

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ylight as we age.

Understand how to use luminaires in a new way to achieve energy efficiency, lighting quality, and construction cost goals.

Discuss lighting energy metrics:- Luminaire efficiency - Luminaire distribution effectiveness

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Review the impact of a task low ambient approach on the construction and operating costs.

Review a project where collaboration between the client and design team made task lowambient a reality.

Research Delivers Change

Research Goals Research Results• Achieve 50% electricity savings

• Meet all current standards

• Provide individual user control

• Reduce construction and ti t

• 56% savings in electricity

• IES light levels maintained

• 100% user satisfaction

• Lower installed costs are possibleoperating costs

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• $0.30 per sf operating costs saved annually

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An Important Focus

75%75%75%75%

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By the year 2040, approximately three-quarters (75%)of the built environment will be either new or renovated.

Source: McKinsey + Company 2007

Buildings Have a Big Impact

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2030 Carbon Neutral

The push toward Net-Zero by 2030Energy Independence and Security Act of 2007 for Federal buildings.

Architecture 2030 - all buildings shall be carbon-neutral by 2030

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Key methodology

LPD LPD LPD

Light the Task Light the Vertical Surfaces

Ambient Lighting Power Density

can be Reduced

~ 0.04 w/ft2 ~ 0.04 w/ft2 ~ 0.4 w/ft2

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Key Results Summary

Task Low Ambient Delivers:

• Proper task illumination levels

• Improved user satisfaction

• 50% reduction in energy consumption

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• Reduction in installed and operating costs

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The Benefits of Flexibility

Individual user control 30-70 fc

Fl ibilitFlexibility:• Any Task• Any User• Any Age• Anytime• Anywhere

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LPD~ 0.04 w/ft2

Task Lighting Technology

We were able to document:

Traditional fluorescent task lights place 3 to 4 times more light on the surfaces than is recommended!

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Task Lighting Technology

150 FC @ 24W 60 FC @ 6W

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We were able to document:

Traditional fluorescent task lights place 3 to 4 times more light on the surfaces than is recommended!

150 FC @ 24W @

The Multi-Generational Workforce Is Here to Stay

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The Impact Of ContrastThe following examples show how the decrease in retinal illuminance causesa decrease in the ability of the viewer to see contrast between text and background.

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Physics Supports Task Lighting

The light intensit at 7’ is 1/49 of

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The light intensity at 7’ is 1/49 of what it is at the source.

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LED Task Luminaires Are a Critical Decision

Summary:

• Cut energy use by 50%

• Deliver the right light levels and luminance uniformity

• Make it beautiful

• Achieve strong user preference

• Keep within existing budgets

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Understanding the Criteria

Use the Following Criteria to Properly Light Vertical Services

D fi th hit t th h• Define the architecture through vertical brightness

• Use fixture energy effectively

• Average 20fc on a 50% reflective surface

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LPD~ 0.04 w/ft2

• Use luminaire with a forward throw asymmetric distribution

• Provides uniform overall glow

Wall Washing

• Provides uniform overall glow

20© Copyright 2011 Design Blitz, a California Corporation. All rights reserved.

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• Emphasize texture

Wall Grazing

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• Vertical brightness defines space

• Improves appearance

• Reduces ambient fixture count

• Reduces energy

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Understanding The Criteria

• 30fc maintained ambient

• Uniformity 3:1 max to min in immediate work area

• Lighting Power Density = 0.4 w/ft2

• Use the right amount of fixtures

• Reduce ambient fixture quantity

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LPD0.4 w/ft2

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Luminaire Efficiency Products Must Do More

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Application EffectivenessTypical Industry Practice

Ambient: 2T8 on 12’ centers

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• 544 linear feet of ambient luminaires

• Avg. Illuminance: 77fc

• LPD: 0.95 w/ft2

• No user control• 12 power feeds

Standard Layout Example

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Application EffectivenessDo More With Less

Task: 8w LED desk lamp Vertical: (6) 1T8 luminairesAmbient: 1T8 on 16’ centers

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• 420 linear feet of luminaires (vertical + ambient)

• Avg. illuminance: 32fc

• LPD: 0.44 w/ft2

• User control: 30-80fc• 9 power feeds

Task Low Ambient Example

T8 Suspended Luminaires

• 90%+ luminaire efficiency

• 70-80% uplight distribution with widespread optics

• Shielding for downlight distribution

• Luminous element

• Quality construction for clean lines

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High PerformanceRecessed Luminaires

• 80%+ efficiency

• Wide, even distribution for spacing flexibility

• Uniform brightness and visually comfortable

• Easy installation

• Below ceiling accessBelow ceiling access

• Sturdy and low cost construction

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TaskIlluminance (fc)

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3048

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Luminance Uniformity Ratios Around Seating Area = 11:1

Across Broad Viewing Areas = 26:132

Meets Targets1

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VerticalIlluminance (fc)

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2

5

2

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Across Broad Viewing Areas = 1.3:1

Meets Targets1

Task & VerticalIlluminance (fc)

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50



Meets Targets2

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Ambient Only

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Illuminance (fc)

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18 20



Meets Targets26

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Task + Vertical + AmbientIlluminance (fc)

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70

30

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Luminance Uniformity Ratios Around Seating Area = 2.6:1


Meets Targets28

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Energy Savings

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Lower Installed Cost

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National Grid

Collaborative Design Approach

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National Grid

Efficiency Strategies for Lighting Include:

• Pendant luminaires with 1T8 lampon 16’ centers

• 6 watt LED task lamps

Task Low Ambient Approach

Massive energy savings

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44% below ASHRAE 90.1

Double LEED Platinum

National Research Energy Laboratory

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• Toward Net-Zero building• T8 lamps on 16’ spacing• 6w LED Desk lamps

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SHI International

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• 0.6 w/sf for Task, Vertical, and Ambient • 1T8 lamp on 18’ spacing• Recessed and wall mounted vertical illumination• 7.4w Dimmable LED Desk lamps

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Pendant Luminaires on 18’ Centers• 1T8 on 18’ centers

• Pendant indirect/directPendant indirect/direct luminaires 8’ AFF

• 1.18 BF

• Avg. Illuminance: 33 fc

• Task Illuminance: 30-80 fc

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• LPD: 0.51 w/ft2

• 54% below ASHRAE

• Wide spread optic for improved uniformity

LED Task16% of total LPD

T8 Vertical8% of total LPD

T8 Ambient76% of total LPD

Recessed 2x2 Luminaires on 10’ x 10’ spacingOpen Plan Layout

• 3T8 2x2 on 10x10 Spacing3T8 2x2 on 10x10 Spacing

• 0.78 BF for vertical

• 0.90 BF for ambient



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• LPD: 0.49 w/ft2

• 55% below ASHRAELED Task

16% of total LPDT8 Vertical

8% of total LPDT8 Ambient

76% of total LPD

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Recessed 2x2 Luminaires in Private OfficePrivate Office Layout

• 2T8 2x2 in 10x12 office• 2T8 2x2 in 10x12 office

• 1.13 BF for ambient



LPD 0 68 /ft2

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• LPD: 0.68 w/ft2

• 38% below ASHRAE

For more informationVisit http://cltc.ucdavis.edu/content/view/83/262/

Visit www.finelite.com

Vi it / hVisit www.energy.ca.gov/research

New Buildings Institute – Advanced Lighting Guidelineshttp://www.newbuildings.org/ALG.htm

Emerging Technologies Coordinating Councilhttp://www.etcc-ca.com

LEEDhtt // b /

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http://www.usgbc.org/

IESNAhttp://www.iesna.org/

ASHRAEhttp://www.ashrae.org/

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Thank YouThis concludes our presentation.

For more information, please contact:

Finelite IncFinelite, Inc.30500 Whipple Road

Union City, CA 94587-1530

Ph (510) 441-1100Fax (510) 441-1510

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www.finelite.com

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