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This California
Building Energy Initiative (CBEI) Program case study features
the Advanced Sterilization Products' Johnson & Johnson office
building at 33 Technology Drive in Irvine, California. It
is a two-story structure encompassing 76,000 square feet of
conditioned space, and was built in 1985. The building contains
office spaces, laboratories, clean rooms, computer rooms,
manufacturing areas and storage space. The building has various
tenants occupying the office spaces with a cafeteria on the
ground floor, a large computer room on the second floor, and
two smaller computer rooms on the first and twelfth floors.
Energy
engineers from Architectural
Energy Corporation (AEC) performed a walk-through evaluation
of selected energy systems and installed approximately a dozen
MicroDataLoggers
to monitor numerous datapoints
every five minutes for a fourteen-day period. The data from
the on-site evaluation, utility
bills, and short-term monitoring were analyzed, and best-case
scenarios were evaluated for saving energy and improving comfort
in the office spaces.
Five energy
conservation measures have been identified (see below) along
with an estimate of the implementation costs and associated
energy savings for the measures. Once the measures are implemented,
the customer will realize an estimated annual utility savings
of more than $73,000 or a 32 percent decrease
in electricity costs (see financial
summary).
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Recommended
Energy Conservation Measures (ECMs)
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Financial
Summary
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ECM #1 and #2
Schedule Trane and smaller packaged rooftop units
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ECM
#3
Installation
of VFD on the process air compressor
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ECM
#4
Economizer Operation
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ECM
#5
Schedule Hot Water Pump
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