Complete
Computer Solutions conserves over 40% lighting energy
Given
the current electrical energy price increases, and requests from
both Washington and Oregon governors to conserve, we recently undertook
the project of retrofitting our offices' 20-year-old fluorescent
fixtures with newer, more efficient, lower energy ballasts and lamps,
while improving the lighting environment for our staff.
We previously
had 22 4-foot, 4-lamp fixtures, each containing two older electro-magnetic
ballasts, rated at .77 amps x 2 = 1.54 amps per fixture. The older
T12 (one and a half inch diameter) fluorescent tubes used 34 or
40 watts per lamp.
Our new
electronic ballast powers the 4-tube fixture with only 1 ballast
per fixture, and when used to power only 3 of the newer T8 (one
inch diameter) lamps, consumes .77 amps per fixture, half of
the previous usage! The newer ballasts are quieter, cooler and
give a more even flicker-free light with less power loss to heat
the office. The three T8 lamps give approx. the same illumination
as before, but we've also paid a bit more per bulb to get a higher
quality light.
COSTS
(approx.)
22 ballasts x $20 = $440; 66 tubes x $3= $168; TOTAL =$608
And part of a weekend to install!
We estimate
at the current local power rates, this should pay back in less than
3 years, even sooner with the anticipated higher electric rates
later this year!
LINKS
US
Department of Energy: Energy Efficiency Recommendations
Magnetek Lighting Products
General
Electric: Business Lighting
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