When designing outdoor lighting, you need to consider the purpose of the
lighting along with the basic methods for achieving energy efficiency.
Outdoor lighting for homes generally serves one or a combination of three
main purposes:
Aesthetics
Illuminate the exterior of the house and landscape.
Security
Illuminate the grounds near the house or driveway.
Utility
Illuminate the porch and driveway to help people navigate safely to
and from the house.
Here are some basic methods for achieving energy-efficient outdoor lighting:
Security and utility lighting does not need to be bright to be effective.
Use fluorescent, high-intensity
discharge, or low-pressure
sodium lights unless incandescent lights are automatically controlled
to be on for just a few minutes each day.
Consider incandescent flood lights with combined photosensors and motion sensors in the
place of other security lighting options.
Use photosensors with fluorescent, high-intensity discharge, or
low-pressure sodium lights.
Make sure outdoor light fixtures have reflectors, deflectors, or
covers to make more efficient use of the light source and help reduce
light pollution.
Use timers and other controls
to turn decorative lighting on and off.
Use outdoor solar
lighting where and if applicable.