Sidelighting
Photocontrols Field Study
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A
Field Study Sponsored by:
Southern California Edison Company, Pacific Gas & Electric
Company, Northwest Energy Efficiency Alliance
Final
Report: Revised Final Report Including Errata (File
size- 1.01 MB)
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HMG has conducted the first large-scale
US field study of energy savings from daylight-responsive lighting
controls (photocontrols) in commercial buildings that are lit by windows
(sidelit spaces).
The aim was to determine how much energy
is actually being saved, and whether any characteristics of the
building, the control system or its commissioning lead to more or less
successful outcomes.
The study found a wide variety of
characteristics that are statistically associated with successful
photocontrols. These characteristics included the type of building, the
size, height and transmittance of the windows, the design of the control
system, and whether the occupants were trained to use the system.
This information can give designers,
program managers and commissioning agents the tools to influence design
at an earlier stage, and achieve the greatest daylight energy savings
and the best-functioning buildings for their clients.
Copyright: Copyright © 2005,
Northwest Energy Efficiency Alliance, Pacific Gas and Electric company,
and Southern California Edison. All right reserved, except that this
document may be used, copied and distributed, without modification.
Disclaimer: Neither NEEA, PG&E or SCE of any of their employees
make any warranty, express or implied, or assumes any legal liability of
responsibility for the accuracy, completeness, or usefulness of any
data, information, method, policy, product or process disclosed in this
document, or represent that its use will not infringe on any
privately-owned rights, including but not limited to patents, trademarks
or copyrights.
Acknowledgements: Project Managers for this project included Jack
Melnyk at Southern California Edison Co., Steven L Blanc at Pacific Gas
and Electric Company, and David Cohan Northwest Energy Efficiency
Alliance.
The project was conducted by the Heschong Mahone Group, Inc. Key HMG
project staff included Lisa Heschong, Principal Investigator; Jon
McHugh, Technical Director; Abhijeet Pande, Owen Howlett, Erin Reschke,
and Brian Sipp.
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