Superconductor Cables for LV DC Power Distribution ... - First Element

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Superconductor Cables for Data Center
Applications

March 24, 2010

Agenda


Introduction to AMSC


AC Superconductor Cables


LV DC Superconductor Cables


A Challenge


Market/Ticker:

NASDAQ/AMSC


Founded:

1987


Headquarters:

Devens, MA


Other locations:

Wisconsin,



Pennsylvania, Austria,



China


Employees:

650+


Patents owned or licensed:

700+

About American Superconductor

$0
$50
$100
$150
$200
$250
$300
$350
$400
FY01
FY02
FY03
FY04
FY05
FY06
FY07
FY08
FY09E
FY10E
Revenue in millions
Estimates as of
11/19/09
AMSC

Power Systems



Produces power electronic

D
-
VAR® and SVC reactive

compensation systems


Provides
licensed wind
energy

system
designs

AMSC
Superconductors


Produces
HTS
wire


Designs
, develops and
licenses HTS products,
and manages large
-
scale
HTS projects

Partnering with
AMSC

AMSC
offers
a unique corporate experience base
:


23
-
year history in the development and manufacture of superconductor wire
and systems


Involvement in two
-
thirds of the world’s
HTS superconductor project
installations


Supplier of >75% of all HTS wire used in power applications


In
-
house System
Planning Department experienced in modeling
superconductor cable systems


Cryogenic system design expertise tailored to HTS projects


Protection and control system design expertise


Turn
-
key superconductor cable system integration
experience


AMSC
offers
unmatched capabilities

5

AMSC and First Element Offer
a Unique HTS
Partnering Experience


DATA CENTER DESIGN SUPPORT
: First Element and
AMSC can
assist in completing any
studies
needed to
site, size and evaluate the system impact of

HTS
cables


CABLE SPECIFICATION SUPPORT
:
AMSC can develop
cable electrical requirements.


CRYOGENIC SYSTEMS
:

AMSC can develop

specifications for, and provide
the cooling system and
assist in evaluating
cryogenic
refrigeration options.


SYSTEM INTEGRATION SERVICES
:
AMSC
and First
Element can define the
scope of supply, timelines,
installation, and commissioning requirements


including turnkey services
-

for the overall HTS cable
project.


AMSC is Uniquely Suited as an HTS Cable Project Partner

Superconductor Cables for Data Centers

AC Cables


High power cables as
alternative to conventional
power cables

LV DC Cables


Extremely
compact


Extremely light


Allows for new
data center
design concepts

LIPA 138kV, 575MVA

Cable System

22kV, 50MVA

Cable

1.4
3.3
4.2
28.8
95.6
0
20
40
60
80
100
208V
480V
600V
4160V
13.8kV
3
-
phase MVA
Maximum AC Superconductor Cable Rating
Power Transfer Equivalency of
Superconductor Cables


Same Voltage, More
Power

-
Greatly increased
power transfer capacity
at any voltage level

Superconductor cables
provide much greater power
transfer than conventional cable

*

Superconductor
rating based on conventional 4000A breaker rating

Application Advantages of AC Cable

Photo courtesy MIT


Single cable can replace multiple
cables


Lower power losses bring power
into a data center


Lower installation costs


One of these


or


All of this?

Superconductor Cables for LV DC Power
Distribution in Computer Data Centers

A DC
power distribution
system
within Data
Centers could
increase
the efficiency of typical
operations by over 28
%*

* “
DC Power for Improved Data Center Efficiency
””,

Lawrence Berkley National Laboratory’s (LBNL) , 2006, p60



Data Center Power
Consumption

Superconductor Advantages with DC Power


When carrying DC current,

superconductors themselves

are perfectly lossless


Regardless of length


Regardless of power rating


Benefits


No power limitations based on current
-
based losses


Allows higher current levels


Allows longer cable runs


Superconductors
offer significant advantages in data
center applications

Superconductor Cables for LV DC Power
Distribution in Computer Data Centers

* “
DC Power for Improved Data Center Efficiency
””,

Lawrence Berkley National Laboratory’s (LBNL) , 2006, p60



Copper Realities


Voltage Drop
limits length

and
therefore data center design


Resistance

produces heat and
increased cooling costs


Large

number of cables are
Heavy
, expensive to install,
and require significant support

Copper, though effective, introduces design limitations

Conventional copper
bus work from DC
plant to PDUs

12

Degaussing Systems

Ship moving though the earth’s

magnetic field creates a magnetic

disturbance that is detectable

by enemy magnetic mines

Degaussing Systems

Baseline Copper System

DDG1000


HTS

Single loop, 1/10 the weight


Today, heavy, bulky copper cables are used to “hide” ship magnetic signature.

Current capacity of copper often requires multiple cables to be used in a single loop

=

Degaussing Systems

LV DC superconductor cables are in service
today in very demanding environments

Superconductor Cables for LV DC Power
Distribution in Computer Data Centers

Refrigeration

HTS

Cable

Junction

Box

Monitoring

* “
DC Power for Improved Data Center Efficiency
””,

Lawrence Berkley National Laboratory’s (LBNL) , 2006, p60



LV Superconductor DC
1000
-
8000A Power Cable

Equivalent Power Density of
Copper to Superconductors

Typical helium
cryocooler

Cryostat

Practical deployment of Superconductor Cables
in Data Centers


Refrigeration required


Larger bending radius required for cryostat (3
-
6’)


Tap points increase thermal load


Minimize number of tap points







Allows long runs from more centrally located DC plants


Allows higher current runs


HTS CABLE

Drops within PDU or
to multiple PDUs

Advantages of LV Superconductor Cable

* “
DC Power for Improved Data Center Efficiency
””,

Lawrence Berkley National Laboratory’s (LBNL) , 2006, p60




No

voltage drop
frees up data center design (better
floor space utilization)


No electrical resistance

reduces

data

center power
consumption by up to 20% (losses and cooling)


Small single cable
reduces construction cost and
time


One 2” diameter, 1 lb/ft cable carries >4000A an
unlimited

distance with no voltage drop

Superconductors
offer significant advantages in data
center applications

48VDC Losses: Cu Vs Superconductor Cables


Loss parity with copper for shorter distances and
lower current


Efficiency increases significantly with distance
and current

Length

150 ft

150 ft

500 ft

1000

ft

Current

2000 A

4000 A

4000 A

4000 A

Superconductor cooling

power

3.3kW

4.6kW

7.3kW

9.3kW

Cu* Losses

3.4kW

6.6kW

22.kW

44.3kW

Loss

Improvement

2%

8%

66%

79%

Superconductor cables reduce energy
consumption

* 0.5A/mm
2

copper capacity

Estimated Installed Cost 48VDC:

Cu Vs Superconductor Cables


One cable replaces many, reducing cost and
speeding and simplifying installation


Superconductor cables have smaller footprints
easing installation


Lower weight reduces cable tray costs

Length

150 ft

150 ft

500 ft

1000

ft

Current

2000 A

4000 A

4000 A

4000 A

Installed

Cost Savings


(HTS to Cu)

0%

20%

40%

55%

Superconductor cables are economical


0.5A/mm
2

copper capacity


Copper cost installation estimates provided by First Element

Advantages of a Superconductor Cabled Data
Center


Establishes a new standard in power delivery efficiency


A complete superconductor cabled data center is
estimated to reduce a power requirements by 20% or
more


Lower cabling installation costs


Savings driven by amperage and cable length


Enables relocation of equipment to less expensive
locations


Rectifiers, batteries, and UPS systems typically consume
10% or more of a data center’s floor space


Free up space on data center floors


Superconductor cables are game changers

AMSC LV DC Superconductor Cables


AMSC can design and build DC superconductor cables of:


Any voltage


Any current rating


Any length


Completely engineered with cooling system and monitoring


AMSC wants to:


Develop standard LV DC product range for data center
applications


Develop standardized connections, etc



AMSC is looking for Partner Companies to Deploy LV HTS
Data Center Cables