The Woodruff Garage Lighting Retrofit
kWh
CO2
$
May 2009
7,106
21.29
604
Cumulative
25,426
37,884
2,161
Cumulative savings are calculated from project completion (February 2009).
By now most of you have noticed a difference in the parking garage in the form of lighting. In February, in part through a grant from Grants To Green, the Woodruff Arts Center replaced the high energy Metal Halide lights in the parking garage with low energy fluorescents. The two major benefits from this project are the energy savings and reduced relamping expense.
The fluorescent lighting that we installed uses 1/3 the energy of the
old lights. Multiply that by 170 lights and it equates to us lowering our
carbon dioxide emissions by 306,209 pounds and a savings of $15,000
a year. This will be a large help in meeting our Energy Star Program
pledge to lower our overall energy consumption by 10%.
In addition to the energy savings, we are using far less bulbs. The met-
al halide bulbs that we replaced lasted only a year and contained 28
milligrams of mercury. The current bulb that we have in place will last
3 years and contains only 3.5 milligrams of mercury. That equates to is
over a $4,000 savings in purchase light bulbs, but more important for the environment, is that we are
keeping 4,364 milligrams of mercury out of the waste stream.
We hope that as you travel through the parking garage, that you not only take a moment to enjoy
the new lights, but also think of how much less of an environmental impact that they are having.