architecture. Good energy efficient lighting design enhances both
the design and the performance of buildings. Knowledge of the
opportunities and constraints of available and emerging lighting
technologies is key to success with this crucial design
- e-News #88: Outdoor Lighting
for safety, security, productivity, and enjoyment. Guidelines and
technologies available today can help meet these lighting needs
while providing good quality lighting that minimizes light
pollution, conserves energy, and enhances community ambience,
including the effect on wildlife and our view of the starry night
- e-News #68: Guestroom Controls for the Hospitality Sector
was San Francisco's first hotel to implement a cardkey
system to control lights and HVAC systems in guestrooms. Monitored
data from four rooms in the hotel showed a reduction in heating and
cooling energy of 45% during the peak cooling season. Computer
simulations based on monitored occupancy levels in the hotel
estimate a savings of 32% of annual heating and cooling costs.
Modeled across five different climate zones, the average savings
- Design Brief: Outdoor Lighting and Title 24
conserve energy and reduce electricity peak demand. The Outdoor
Lighting Standards regulate lighting power, controls, and allowed
lighting fixture types. Illuminated signs are also covered by the
- Design Brief: Efficient Lighting Systems
that reduce energy consumption also improve the visual environment
and provide maintenance savings. Lighting systems offer
extraordinary opportunities for cost-effective energy savings. In
addition, many strategies for reducing lighting energy use often
can improve the visual environment.
- Design Brief: Lighting Controls
productive in a well-lit space that fosters better visual comfort.
Lighting controls can increase the value of commercial buildings by
making them more comfortable, productive, and energy efficient.
These controls work either by turning lights off when they are not
needed or by dimming light output so that no more light is produced
- Design Brief: High Intensity Fluorescent Lighting
outshine their high-intensity discharge competitors. They are often
more efficient and feature lower lumen depreciation rates, better
dimming options, instant start-up, and better color rendition.
- Design Brief: Skylights with Suspended Ceilings
in large, low-rise commercial buildings have been custom designed
and site built, an expensive and labor-intensive process. This
design brief explores the benefits of a better alternative: splayed
modular skylight wells specifically designed for use with suspended
- Case Studies: Building Case Study - A Biotech Lab and Office
Institute in La Jolla, California, is a 123,000-square-foot
laboratory and office building completed in 1999. Among the energy
efficiency measures included in the building are systems for
limiting energy waste associated with its 92 fume hoods and its air
handling, space conditioning, and lighting systems.
- Design Brief: Daylighting
the Daylighting Designer's Toolkit, designers can improve the
visual environment, create a higher-quality space, and lower energy
costs for buildings.