<s>
Energy	B-General_Concept
Logic	I-General_Concept
is	O
a	O
vendor-neutral	O
approach	O
to	O
achieving	O
energy	O
efficiency	O
in	O
data	B-Operating_System
centers	I-Operating_System
.	O
</s>
<s>
Developed	O
and	O
initially	O
released	O
in	O
2007	O
,	O
the	O
Energy	B-General_Concept
Logic	I-General_Concept
efficiency	O
model	O
suggests	O
ten	O
holistic	O
actions	O
–	O
encompassing	O
IT	O
equipment	O
as	O
well	O
as	O
traditional	O
data	B-Operating_System
center	I-Operating_System
infrastructure	O
–	O
guided	O
by	O
the	O
principles	O
dictated	O
by	O
the	O
"	O
Cascade	O
Effect.	O
"	O
</s>
<s>
The	O
first	O
iteration	O
of	O
the	O
Energy	B-General_Concept
Logic	I-General_Concept
model	O
was	O
introduced	O
by	O
Emerson	O
Network	O
Power	O
on	O
November	O
29	O
,	O
2007	O
.	O
</s>
<s>
Described	O
as	O
a	O
“	O
new	O
approach	O
to	O
energy	O
optimization	O
,	O
”	O
the	O
model	O
was	O
developed	O
in	O
response	O
to	O
industry	O
feedback	O
suggesting	O
a	O
growing	O
emphasis	O
on	O
promoting	O
efficiency	O
initiatives	O
,	O
without	O
compromising	O
the	O
performance	O
and	O
reliability	O
of	O
the	O
data	B-Operating_System
center	I-Operating_System
.	O
</s>
<s>
The	O
Energy	B-General_Concept
Logic	I-General_Concept
data	B-Operating_System
center	I-Operating_System
efficiency	O
model	O
was	O
developed	O
based	O
on	O
research	O
and	O
modeling	O
of	O
a	O
5,000	O
square	O
foot	O
data	B-Operating_System
center	I-Operating_System
,	O
including	O
average	O
IT	O
equipment	O
densities	O
,	O
common	O
data	B-Operating_System
center	I-Operating_System
and	O
facility	O
infrastructures	O
(	O
power	O
,	O
cooling	O
,	O
etc	O
.	O
)	O
</s>
<s>
Energy	O
draw	O
for	O
the	O
5,000	O
square	O
foot	O
data	B-Operating_System
center	I-Operating_System
model	O
was	O
based	O
on	O
the	O
following	O
assumptions	O
:	O
</s>
<s>
For	O
the	O
purposes	O
of	O
the	O
Energy	B-General_Concept
Logic	I-General_Concept
model	O
,	O
the	O
cascade	O
effect	O
assumes	O
that	O
for	O
every	O
one	O
watt	O
of	O
energy	O
saved	O
at	O
the	O
server	B-Application
component	O
level	O
,	O
a	O
data	B-Operating_System
center	I-Operating_System
can	O
expect	O
to	O
realize	O
up	O
to	O
2.84	O
Watts	O
in	O
cumulative	O
energy	O
savings	O
as	O
the	O
initial	O
reduction	O
“	O
cascades	O
”	O
through	O
the	O
infrastructure	O
(	O
DC-DC	O
,	O
AC/DC	O
,	O
Power	O
Distribution	O
,	O
etc	O
.	O
</s>
<s>
The	O
Energy	B-General_Concept
Logic	I-General_Concept
model	O
proposes	O
ten	O
vendor-neutral	O
actions	O
that	O
are	O
forecast	O
to	O
reduce	O
cumulative	O
energy	O
consumption	O
by	O
up	O
to	O
50	O
percent	O
(	O
reducing	O
energy	O
consumption	O
to	O
585kW	O
from	O
the	O
data	B-Operating_System
center	I-Operating_System
's	O
initial	O
1,127	O
kW	O
load	O
)	O
.	O
</s>
<s>
The	O
ten	O
recommended	O
actions	O
prescribed	O
in	O
the	O
Energy	B-General_Concept
Logic	I-General_Concept
model	O
are	O
:	O
</s>
<s>
Implementing	O
data	B-Operating_System
center	I-Operating_System
cooling	O
best	O
practices	O
(	O
Optimizing	O
Airflow	O
,	O
Using	O
Optimal	O
Set	O
Points	O
,	O
Reducing	O
Energy	O
Waste	O
,	O
Etc	O
.	O
)	O
</s>
<s>
The	O
Energy	B-General_Concept
Logic	I-General_Concept
model	O
also	O
suggests	O
additional	O
opportunities	O
for	O
energy	O
savings	O
,	O
including	O
:	O
</s>
<s>
In	O
2012	O
,	O
Emerson	O
Network	O
Power	O
introduced	O
an	O
update	O
to	O
the	O
Energy	B-General_Concept
Logic	I-General_Concept
model	O
,	O
to	O
take	O
into	O
consideration	O
advances	O
in	O
IT	O
and	O
data	B-Operating_System
center	I-Operating_System
infrastructure	O
technology	O
.	O
</s>
<s>
Using	O
the	O
same	O
5,000	O
square	O
foot	O
data	B-Operating_System
center	I-Operating_System
benchmarked	O
in	O
the	O
2007	O
model	O
,	O
Energy	B-General_Concept
Logic	I-General_Concept
2.0	O
updates	O
the	O
ten	O
prescribed	O
actions	O
to	O
reflect	O
current	O
technologies	O
and	O
average	O
equipment	O
efficiency	O
.	O
</s>
<s>
As	O
a	O
result	O
,	O
the	O
updated	O
actions	O
are	O
forecast	O
to	O
yield	O
energy	O
savings	O
up	O
to	O
74	O
percent	O
(	O
reducing	O
energy	O
consumption	O
from	O
1,543	O
kW	O
to	O
408kW	O
in	O
the	O
model	O
data	B-Operating_System
center	I-Operating_System
)	O
.	O
</s>
