Building Operating Management September 2011 - FacilitiesNet

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energy consumed by the data center
to the energy consumption of just the
IT equipment (e.g., servers, switches
and storage). Building owners with
data centers in their buildings (usually
in commercial office space) must
work with tenants to ensure that they
have the proper metering in place to
capture the IT energy consumption
output of the uninterruptible power
supply (UPS).
In March 2011, EPA released an energy
performance scale for senior care
facilities. Now, nursing homes, assisted
living communities, and certain
types of continuing care retirement
communities are eligible to earn the
Energy Star. A senior care community
is defined as all buildings in a multibuilding
campus setting or a standalone
facility that are designed to
house and provide care and assistance
for elderly residents including assisted
living, skilled nursing, and select conbuildingoperatingmanagement
SEPTEMBER 2011
Just Connect...
data center energy consumption is
critical for our country’s energy security
because of the energy-intensive
nature of these operations. In 2006,
data center and server energy use was
estimated at approximately 61 billion
kilowatt hours (kWh), or 1.5 percent of
total U.S. energy consumption, costing
approximately $4.5 billion. According
to an EPA report to Congress
published in 2007, the energy use of
data centers, servers, and infrastructure
more than doubled from 2000 to
2006, and it is expected to continue to
grow exponentially.
In late 2010, EPA released an energy
performance scale for data centers
to enable operators to measure
and compare their energy performance
to similar facilities across the
nation. During EPA’s analysis of data
center energy use, which drew upon
information from both stand-alone
data centers and data centers located
within commercial buildings, an important
finding was that the variability
in energy use was more dependent on
energy management practices than
on operating characteristics.
EPA’s energy performance scale for
data centers is based on a common industry
metric, power usage effectiveness
(PUE), which is the ratio of total
There are now 14
facility types which
are eligible for a
1 to 100 Energy
Star score using
Portfolio Manager,
including data
centers and senior
care facilities
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