US Labs21 energy benchmarking data shows that the lighting
energy use in laboratories represents between 8 to 20% of the
total electrical energy use. While typically 10 to 20 percent
less energy is consumed by lighting in laboratory-type facilities
than by the HVAC system, it should be an essential component
of an integrated sustainable design approach, for at least two
reasons: a) efficient lighting still remains one of the most
cost-effective energy efficiency measures available; and b)
the visual environment has been shown to have a considerable
impact on occupant health, comfort, and productivity.
Efficient lighting design begins with understanding the tasks
to be performed in the laboratory. A design that incorporates
both dedicated task illumination and general ambient lighting
is most energy efficient. High-efficiency lighting components,
such as T8 fluorescent lamps and electronic ballasts, are the
starting point in energy-efficient lighting designs. Lighting
energy is also dramatically reduced by control systems that
turn off lights based on occupancy or adjusts lighting in response
to available natural light. In some laboratories, a remote lighting
system provides the benefit of isolating a large portion of
the lighting system from the laboratory space.
Follow the links below for more information on the following:
Lighting
Design
High-Efficiency
Lighting Components
Lighting
Control
Remote
Lighting Control
Best Practice
Click here for US Labs21 Best
Practice Guide on Daylighting in Laboratories
Click here for 2004 conference paper on Best
Practice Strategies for Laboratory Electrical Lighting Systems
(abstract only)
Click here to see how the Wolfson Medical School, University
of Glasgow, winner of the 2004
Green Gown Awards for energy efficiency, saved £7000
annually in electricity costs through its lighting system which
combines daylighting with a sensitive control system. For a
single building the system has payback of 8 years. Similar systems
have been installed for the Cardiovascular and Biomedical Research
Centres Building and the Cancer Research UK Beatson Cancer Research
Facility, the latter using triple glazed low emissitivity facade.
See also US case studies on:
Sandia
National Laboratories New Mexico – which achieved
actual lighting performance of 0.07W/m2, better than design
targets, thgouh efficient lamps and ballasts, LED exit signs
and programmable lighting controls
Fred
Hutchinson Cancer Centre, Seattle – which uses energy
efficient lamps and ballasts, programmable lighting controls,
motion detectors and low-e glass
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