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Residential and Commercial Consulting( Design and Engineering Services
Induction Lighting Demonstration and Survey for
Car Dealerships Exterior Display Lighting
Statewide Emerging Technologies ET 06.09


Report, December 5, 2006


Prepared by:
Doug Avery
Design and Engineering Services
Customer Service Business Unit
Southern California Edison
December, 2006 Induction Lighting Demonstration and Survey for Car Dealerships Exterior Display Lighting
Southern California Edison








Page i
Design & Engineering Services






March 3, 2008

Project Management

Nancy Clanton, PE, Clanton & Associates, Inc. of Boulder, Colorado managed this project.
Subcontractors on this project included Stacia Okura and Bob Kasman, RLW Analytics of
Sonoma, California and Chris Winters, Quality Light and Electric of Bloomington, California.

For more information on this project, e-mail doug.avery@sce.com

Acknowledgements

Southern California Edisons Design & Engineering Services group is responsible for this project.
It was developed as part of Southern California Edisons Emerging Technology program under
internal project number ET 06.09, as funded in Program Year 2006.

Disclaimer

This report was prepared by Southern California Edison and funded by California utility
customers under the auspices of the California Public Utilities Commission. Reproduction or
distribution of the whole or any part of the contents of this document without the express
written permission of SCE is prohibited. This work was performed with reasonable care and in
accordance with professional standards. However, neither SCE nor any entity performing the
work pursuant to SCEs authority make any warranty or representation, expressed or implied,
with regard to this report, the merchantability or fitness for a particular purpose of the results of
the work, or any analyses, or conclusions contained in this report. The results reflected in the
work are generally representative of operating conditions; however, the results in any other
situation may vary depending upon particular operating conditions.
Induction Lighting Demonstration and Survey for Car Dealerships Exterior Display Lighting
Southern California Edison








Page ii
Design & Engineering Services






March 3, 2008

Table of Contents

1.0

Introduction ....................................................................................... 8

1.1

Approach ........................................................................................................................................... 8

1.2

Background ..................................................................................................................................... 10

1.3

Project Goals and Objectives .......................................................................................................... 11

1.4

Market Potential .............................................................................................................................. 12

2.0

Test Procedures ............................................................................... 13

2.1

Survey Design ................................................................................................................................. 13

2.2

Data Collection/Monitoring ............................................................................................................ 13

2.3

Experiment Setup ............................................................................................................................ 14

2.4

Photos .............................................................................................................................................. 16

3.0

Results ............................................................................................. 19

3.1

Overall Results ................................................................................................................................ 19

3.2

Overall Quality of Lighting Systems .............................................................................................. 24

3.3

Qualitative Question Summary ....................................................................................................... 26

3.4

Data Analysis .................................................................................................................................. 28

3.5

Discussion ....................................................................................................................................... 30

3.6

What does it all mean? .................................................................................................................... 30

3.7

Future Research Recommendations ................................................................................................ 30

3.8

Prior Work ...................................................................................................................................... 31

4.0

Conclusions ...................................................................................... 32

5.0

References ....................................................................................... 32

6.0

Appendices ....................................................................................... 33


Induction Lighting Demonstration and Survey for Car Dealerships Exterior Display Lighting
Southern
California
Edison
Page
iii
Design & Engineering Services






March 3, 2008
Abbreviations and Acronyms

CCT
Correlated Color Temperature in degrees Kelvin
CRI
Color Rendering Index
FC Footcandles
IESNA Illuminating
Engineering Society of North America
MH Metal
Halide
W Watts

Table of Figures

Figure 1: Metro Nissan Motors in Redland, CA .............................................................. 4

Figure 2: Respondents at the test site. ........................................................................ 4

Figure 3: Frequency distribution of responses to Question18, Please rate your impression of
the overall quality of the light on a scale of 1 to 5, with 1 being very low quality and 5 being
very high quality. ................................................................................................... 5

Figure 4: Frequency distribution of responses to Question 19 How does the lighting in this
area compare with the lighting at similar dealerships at night? ...................................... 6

Figure 5: System A Luminance Measurements (cd/m
2
) of 1000 watt MH . This system
resulted in a maximum luminance of 97000 cd/m
2
(the highest of the three systems). ...... 9

Figure 6: System B Luminance Measurements (cd/m
2
) of 750 watt MH . This system resulted
in a maximum luminance of 72000 cd/m
2
. ................................................................... 9

Figure 7: Luminance Measurements (cd/m
2
) of 2-200 watt induction ©. This system resulted
in a maximum luminance of 68,000 cd/m
2
(the lowest of the three systems). ................. 10

Figure 8: Experiment Set-Up .................................................................................. 15

Figure 9: Overall View of Back Lot from Position A ..................................................... 16

Figure 10: Check-In Tent ........................................................................................ 17

Figure 11: System A 1,000 W Metal Halide - Day .................................................... 17

Figure 12: System B 750 W Metal Halide - Night ..................................................... 18

Figure 13: System A 400 W Induction - Night ......................................................... 18

Figure 14: Sample Graphical Display of Means and Confidence Intervals ....................... 21

Figure 15: October 14
th
mean and 95% confidence intervals of survey responses, Q1-Q10.22

Figure 16: October 14
th
mean and 95% confidence intervals of survey responses, Q11-Q19.
........................................................................................................................... 22

Figure 17: Frequency distribution of responses to Question18, Please rate your impression
of the overall quality of the light on a scale of 1 to 5, with 1 being very low quality and 5
being very high quality. ......................................................................................... 24