Sustainable Chicago, Spring 2017 - page 5

throughout the building, the Rookery can now track
the best time to use outside air versus mechanical
cooling, “Or, at some points, running the two at the
same time which was very foreign to an engineer
like myself,” Freeman said. “The data from our ver-
ification process assured me, handily, that this sys-
tem works.”
The Rookery was also an early volunteer in the
Retrofit Chicago Energy Challenge, a program that
promotes energy efficiency leadership among the
city’s building stock. “We expected them to tell us
the same things as other energy efficiency companies
who have come through with cookie cutter ideas”
Freeman said. However, after implementing large-
scale measures in response to the retro-commission
feedback, the Rookery’s engineering team was able
to find small but still very profitable measures after
taking part in Retrofit Chicago. For example, an in-
crease in outside air intake as part of the cooling
load created pressure issues that resulted in some
negative losses in the exhausting system. By finding
inefficiencies and identifying fixes that ran the gamut
from high capital to low or no cost, the Rookery was
able to budget in energy efficient retrofits.
Retrofit Chicago issues a number of awards to
further encourage its membership. Last year, the
Rookery was inducted into the Mayor’s Leadership
Circle. This award is given to facility teams that have
reached or exceeded the 20% energy reduction tar-
get; the Rookery hit 24%, the equivalent of 1.4 mil-
lion kWh saved annually. Freemen himself had
previously won the Most Valuable Engineer in 2014,
which recognizes individuals who have achieved sig-
nificant energy savings at his or her facility.
More than anything else, a standardized and
streamlined energy management operation has been
the key to updating the Rookery’s systems. “These
processes and procedures that Shawn put together
are very common throughout all of Able Engineer-
ing’s buildings and it makes it easy to take a build-
ing through a process like LEED because a lot of the
hard work in documenting procedures is already
done,” said Josh Schubert, Director of Energy Engi-
neering at Goby.
Chicago-based Goby was founded as an energy
management consulting firm, but has been moving
into the technology sector. Their building data man-
agement platform, SeaSuite, is used by properties
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