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Energy Audit Articles
"Cost Saving Recommendations Come
From City Energy Audit", (c) A.J. Hoffman, Charlevoix
Courier, September 3, 2008
U.S. Energy Engineers
recently completed an energy audit of four city
buildings in Charlevoix.
The report concentrated on the lighting and heating
ventilation and air conditioning (or HVAC as the report
refers to it) needs of the buildings and how to save
energy for each of them. Based upon the review of
utility costs for all city buildings, the staff felt
they should focus their time on the four buildings which
consume the most energy.
“We looked at all aspects that would save the city
money,” said Dr. Felix Goto, President of U.S. Energy
Engineers. “We’re engineers, we’re not here to sell
anything.”
The four buildings that underwent the audit were City
Hall/Fire Department; Water Treatment Plant; Wastewater
Treatment Plant; and the Mt. McSauba Ski Lodge.
“Though we’ve done audits
for mostly companies in the Grand Rapids area, we’re
trying to do more audits for places up north because we
believe we can help with their energy and help them
better manage their resources,” said Goto. “I used to
work up north and there wasn’t such a push for energy
efficiency. We should target them because they usually
spend more than they should.”
Goto said that he’s seen other companies try to do
energy audits and fail because some of them may be
trying to sell a unit, where his company is getting paid
soley to come in, take measurements, do the math and
give solutions.
“Charlevoix faired pretty well,” Goto said. “I’ve seen
some better and I’ve seen some worse. Charlevoix has a
lot of older systems in their buildings, but they’re
well-maintained so they’re holding up pretty well.”
U.S. Energy Engineers put together a 30 page report of
their findings. The report was developed to research
ways for the city to save on escalating energy costs.
A few of the solutions Goto’s engineers suggested were
to do a thermo-stress analysis on the pipe system at the
water plant. Another suggestion included putting
lighting sensors up in the ski-lodge. “This is a $25
piece of equipment that could save the city a few
hundred dollars a year,” Goto said. “Also, you don’t
need 1,000 watt bulbs in there. That’s just too much.”
The report makes suggestions for many areas to have
occupancy and daylight sensors in many rooms, because
otherwise, the lights in those rooms are left on all day
long with nobody even in them.
The U.S. Energy Engineers also gave a variety of options
for conserving energy in the general boiler and hot
water systems at the water filtration plant.
“The city certainly benefited from the audit. It raised
our awareness of energy saving strategies and
techniques,” said Rob Straebel, Charlevoix City Manager.
“The things we get out of this audit are things that
will help inform us on making the right investments. The
report will let us know how much money we have to spend
to make money.”
Straebel got the idea for an energy audit from a
conference he attended from the Michigan Municipal
League about ways to cut energy costs. “I just called
around to other municipalities and they informed me that
they (U.S. Energy Engineers) had the best price for the
service,” he said.
Straebel and other staff members felt that it was
important for city council to discuss the information in
the audit because many of the recommendations could be
part of the proposed expenditures for the 2009-10 yearly
budget.
“Looking at the report and the money we need to spend,
it should take us about two years to break even and
re-cooperate the costs on most of the things, like
lighting,” said Straebel.
According to Straebel, it cost the city around $3,000
for the audit. The
audit brought six to eight engineers in from Grand
Rapids for about a day and a half to analyze the four
major buildings in the city.
“It’s a great service and I would recommend it to any
group or business to go ahead and do this,” Straebel
said. “It’s not just a smart thing to go through with
from an economic standpoint, but it’s a good thing for a
city to go through with to become more conscious of
their own carbon footprint.”
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