Designing Next Generation Data Centres
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Data Explosion• 1bn new web pages created daily
• Data creation to increase
5-fold in 2 years
• Video expected
to be 50% of
internet traffic
by 2012
• Enterprise storage
requirements increase
50% every year
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Nexus 5548Catalyst 6509-V-E
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Top Of Rack or End of Row
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CPU 1 CPU 2
Appliance 1 - UCS C210-M2
Core 1 Core 2 Core 3 Core 4 Core 1 Core 2 Core 3 Core 4
UCM – Pub & TFTP UCM – SubscriberUnity Connection Presence
CPU 1 CPU 2
Appliance 2 - UCS C210-M2
Core 1 Core 2 Core 3 Core 4 Core 1 Core 2 Core 3 Core 4
UCM – Subscriber Unity Connection PresenceUCM – Subscriber
2 cores =
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Equipment Quantity Size in U Typical Power Max BTU
VSS Cat 6509-VE 2 21 1558.70w 6469.53
Nexus 5548 2 1 390w <1998
Nexus 2248 2 1 110w 322
Nexus 2232 2 1 270w 806
UCS210-M2 2 2 343w 1168
Total Per DC 25 2671.7 10763.53
Site Total 50 5343.4 21527.06
Equipment Quantity Size in U Typical Power Max BTU
Cat 6509-VE 2 21 1558.70w 6469.53
Cat 6509-VE DC 2 21 3395.28w 17051.29
MCS-7845 4 2 257w 875
MCS-7835 4 2 189w 645
Total Per DC 50 5845.98 26560.82
Site Total 100 11691.96 53121.64
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All content in this presentation is protected – © 2008 American Power Conversion Corporation
PUE – Power Utilisation Effectiveness &
Enhanced Capital Allowance (ECA)
Richard Symons
Data Centre Specialist
June 2011.
APC by Schneider Electric – Giles Pattison – 7th April 2011
Agenda
● HOW IS ENERGY EFFICIENCY DEFINED?
● POWER AND COOLING EFFICIENCY CALCULATIONS
● ECA IS FOR ENERGY SAVING TECHNOLOGY
● WHAT QUALIFIES ?
● ENERGY TECHNOLOGY LIST ( ETL)
● HOW CAN CUSTOMER CLAIM ECA ?
APC by Schneider Electric – Giles Pattison – 7th April 2011
How is efficiency defined?
Power usage effectiveness (PUE) and Data Center infrastructure efficiency (DCIE)
PUE is a ratio of total power coming into the data center to the power going
to the IT.
For example if it takes 1.5 times as much energy to run your data center as
than is required to for just the IT equipment.
DCIE is represented as a percentage of IT load power divided by total data
center power, and is the inverse of PUE.
Higher DCIE values indicate a more efficient data center.
APC by Schneider Electric – Giles Pattison – 7th April 2011
Carbon footprint
● Vary parameters
● Experiment with “What if”
● Make tradeoffs
Power/cooling efficiency
Data Center Capital Cost
Make informed decisions BEFORE you invest in your data center
APC by Schneider Electric – Giles Pattison – 7th April 2011
Enhanced Capital Allowance
(ECA) Scheme for Energy
Saving Technologies
APC by Schneider Electric – Giles Pattison – 7th April 2011
Enhanced Capital Allowance for energy-
saving technologies
● The Carbon Trust manages the Energy Technology List (ETL) and promotion
of the ECA scheme on behalf of Government.
● To help bring about a low carbon economy and reduce UK CO2 emissions by:
1. Influencing the design, availability, and uptake of the most energy-efficient
equipment types within the remit of the scheme;
2. Promoting the ETL as a principal procurement tool for designers,
specifiers and purchasers interested in energy-saving capital equipment.
APC by Schneider Electric – Giles Pattison – 7th April 2011
ETL – Technology Groups
● Air-to-air energy recovery
● Automatic monitoring and targeting equipment (
● Boilers
● CHP
● Compact heat exchangers
● Compressed air equipment
● Heat pumps for space heating
● HVAC Equipment
● Lighting
● Motors and Drives
● Pipe insulation
● Refrigeration equipment
● Solar thermal systems
● Warm air and radiant heaters
● Uninterruptable Power Supply
Businesses may claim
100% first-year capital
allowance
APC by Schneider Electric – Giles Pattison – 7th April 2011
More information from . . .
● ECA Scheme for energy-saving technologies
Information for purchasers
- www.eca.gov.uk/energy
- Carbon Trust Advice Line on 0800 085 2005 or email customercentre@carbontrust.co.uk
● HM Revenue & Customs
● www.hmrc.gov.uk/manuals/camanual/CA23100.htm
● Tel: 020 7147 2541
APC by Schneider Electric – Giles Pattison – 7th April 2011
FINANCIAL GAINS FOR CUSTOMER
DUE TO ECA SCHEME
●EXAMPLE of ECA claim : If Client X made a profit of
£100,000 during current tax year and had purchased ECA
certified UPS project worth £70,000 during the same tax
year, then Client X will pay tax on £30,000 (£100,000 less
£70,000) only, instead of £100,000
●** UPS Project cost benefit includes : UPS systems,
delivery & offloading including craneage, direct install cost
covering cabling, battery build, project management, any
site modifications and UPS project specific professional
fees too.
APC by Schneider Electric – Giles Pattison – 7th April 2011
FINANCIAL GAINS FOR CUSTOMER
DUE TO ECA SCHEME
● Usual rate of capital allowance for plant and machinery is
20% p.a. on sliding scale basis and is spread over a
number of years.
●However with ECA the customer is allowed by HMRC to
use up the full cost of the UPS project ** as capital
allowance within the first year of purchase.
●This ECA scheme indirectly boosts the cash flow for the
customer for the first year.
●The ECA allowance is written off against customer’s own
taxable profit.
APC by Schneider Electric – Giles Pattison – 7th April 2011
Questions?
APC by Schneider Electric – Giles Pattison – 7th April 2011
Nick Morris, NextiraOne
Senior Design Consultant
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