Cooperative Living March/April 2014 - 28

WI$E ENERGY U$E by James Dulley, Contributing Columnist
EFFICIENT
OUTDOOR
LIGHTING
Q.
A.
I need to add
outdoor lighting
for security
at my home. I'd also like
to use the lights for
entertaining. How can I
brighten outdoor spaces
without driving up my
electric bills? - Paul H.
Outdoor lighting can be effective
for security, but drives up
utility bills if done improperly.
Security lights are not always
best for entertaining, and vice versa.
Make your security and entertaining
lighting plans independently, then check to
see where they overlap. Security lighting is
usually on all night; entertainment lighting
is not. Choosing the proper security lighting
has a greater impact on your utility bills.
Before you consider adding outdoor
security lighting, make other low-cost
security improvements to your home. Make
sure window latches lock securely, install
bump-resistant door deadbolts, and consider
an alarm system.
View of an efficient and well-lighted house for security and entertaining. Source: Hadco
Light outdoor spaces
to entertain and secure
your home without
wasting energy
26
Once you feel the perimeter of your
home is relatively secure, plan your lighting.
Do an outdoor walk-around inspection of
your house at night to see where additional
lighting might help. Sometimes there is
enough brightness from a neighbor's home
to illuminate otherwise dark, suspect areas.
Prioritize lighting-need areas. Installing
just two 150-watt security lights and keeping
them on all night can increase your
electric bill by more than $100 per year.
Keep in mind, the wattage of a light
bulb does not determine how much light it
produces. Wattage refers to how much
electricity a bulb uses. Instead, look for light
output - measured in lumens - on bulb
packaging.
Compact fluorescent lamps (CFLs) and
light-emitting diodes (LEDs) produce more
lumens per watt of electricity compared to
standard incandescent bulbs. For example,
an L22 array LED fixture uses less than 25
watts to produce the same light output
(about 1,800 lumens) as a 100-watt incandescent
bulb.
When planning outdoor lighting, make
an effort to minimize nighttime light
pollution. Bright lights create a problem for
wildlife and can be annoying to neighbors.
Cooperative Living/March-April 2014
SOURCE: HADCO

Cooperative Living March/April 2014

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