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Case Studies and
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Case Study for Customer Location
CA100:
Reservoir or Lake Use:
The pond is a storm water collection basin for a refinery.
System Overview and Reservoir:
The pond is 6.7 surface acres, with an operating depth of 4 feet
and approximately 4 ft of sludge and slurry on the bottom. There
is no power to the pond. Prior to the SolarBees being installed,
they operated 2 x 10 hp of brush aerators that ran 24 hrs/day
for 365 days per year. Because there was no power to the pond,
two diesel generators were required to run the aerators.
Reported Problem Before SolarBee Installation:
The two main problems were noxious odors coming from the pond,
and the high costs associated with running the two brush
aerators. Goals were to control odors and provide energy savings
by eliminating brush aerators and the need to run power to the
site in order to avoid the continued use of diesel generators.
SolarBee Installation:
Date: December 2004, installed two (2) SB10000v12-OC odor
capping SolarBee machines. The SolarBees were tethered to shore
with the photovoltaic panels mounted on shore for one unit and
on the SolarBee directly for the other unit.
Results:
The two SolarBees have achieved continuous odor-capping and have
maintained residual dissolved oxygen levels at the top of the
pond, without any need for brush aerators. The SolarBees have
completely replaced the two 10 hp brush aerators and the need to
run the diesel generators for power. This replacement also
eliminated the unpleasant aerosols common with brush aerators.
There have been no maintenance issues with the SolarBees, and
the economic savings to the refinery have been substantial. The
SolarBees eliminated the $150,000 annual cost to rent, operate
and maintain the brush aerators and diesel generators. The
SolarBees also avoided the cost of running power to the site to
provide electricity to brush aerators, savings $150,000. Since
the cost of the installation of two SolarBees was $75,000,
payback in energy savings alone was less than 6 months.
One of two SolarBees being
installed in the refinery’s stormwater collection pond
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