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					                                                                            Information Systems Panel Briefing Sheet




Green IT Infrastructure
This briefing sheet on Green IT Infrastructure has been                   b)   Energy efficiency – buying more energy
prepared in conjunction with the ICE Information Systems                       efficient IT equipment reduces utility bills and
Panel.                                                                         reduces carbon footprint.
                                                                          c)   Product and company differentiation – based
Summary                                                                        on increasing consumer demand manufacturers
2% of global CO2 emissions are caused by the current IT                        have to respond to these demands in order to
hardware in use today. This includes equipment like PC,s                       maintain or increase their profitability
servers, cooling , power supplies, networks (LAN and                      d)   Corporate Social Responsibility (CSR) –
WAN), printers and disk storage. Global IT spending is                         green IT helps enhance the brand of a business
projected to reach approximately $2 trillion in 2010, with a                   and shows the communities that they operate in
compound growth rate in spending of over 6%. (Source                           that they are responding to concerns over global
IDC)                                                                           warming

If left unchecked, then with the continued expansion in IT
spending, that is being used to drive commerce and
industry , CO2 emissions will continue to increase or even
accelerate.

This, coupled with large increases in the cost of the
power, to run all this hardware has now created two major
problems for all IT infrastructure users. How can I
convince my customers (who increasingly demand green
credentials from their business partners) that I am running
a Green IT operation. And more directly, particularly in
the current economic climate, how do I reduce the size of
my power bill?

Introduction
Green IT is a business issue as well as an environmental
one. The problems that need to be addressed are:
                                                                     Green IT and all associated infrastructure must also
    •    increasing cost of power                                    consider the full lifecycle energy costs of any IT related
                                                                     hardware:
    •    removing the need for capacity growth
                                                                     For example:
    •    demonstrating green credentials

                                                                     IT Hardware           Embedded               Day to day
But ‘Green IT’ is about much more than social                                              energy                 usage
responsibility. If implemented correctly, it is possible to
see Green IT as an opportunity, a pivotal basis for                  Desktop PC and        70%                    30%
business growth, economic benefits and operational                   monitor
stabiity                                                             Server                25%                    75%

Impetus for Change                                                   Laptop PC
                                                                     Cell Phone
                                                                                           80%
                                                                                           80%
                                                                                                                  20%
                                                                                                                  20%

There are three drivers for this change
                                                                     In this way the provision of desktop services would
    a) government mandate – regulators in the EU                     consider a server based solution because of the reduction
        and US are targeting IT products and                         in embedded energy costs tat could deliver.
        operations, including materials used in building
        computing infrastructure, disposal of electronic
        equipment and greenhouse gas emissions.
Briefing sheets are provided free of charge to help increase knowledge and awareness. They may be freely copied. Care is taken to
ensure information is correct, however readers are advised to consult source documents for authoritative information.
Institution of Civil Engineers, One Great George Street, Westminster, London SW1P 3AA Registered Charity No. 210252
.

Infrastructure, Power and
                                                                     A potential action plan
Cooling Concerns
                                                                     In order to address these concerns there is a 10 point
Server Cooling can be a bigger problem than Server                   action plan that businesses could consider to maximise
Power – the cost of cooling racks of serves has risen from           the benefits offered by a green IT strategy
50% of total power to 200% of total power consumption.
                                                                          a)   start a discussion within your business
Server Virtualisation can increase the utilisation of                     b)   define a policy and an implementation strategy
primary servers from an average 10% to over 60% - and                     c)   engage with the staff and use their enthusiasm
this could reduce the need for extra servers as demands
                                                                          d)   start measuring power consumption to ensure
for server power grows.
                                                                               you have a benchmark
                                                                          e)   set a goal and publicise it to the organisation
Heat Recycling – new data centres should be designed
                                                                          f)   develop a power reduction strategy ficusing on
to reuse the heat that is generated by the IT infrastructure
                                                                               the data centre, desktop computing, network and
Only 10% of businesses do this today.                                          printing
                                                                          g)   develop procurement guidelines that take
Putting pressure on Vendors – ensure that vendors do                           account of environmental measures particularly
not lock you into specific solutions that require their                        lifecycle costs
software/hardware combinations. These solutions must                      h)   create an disposal policy that has environmental
also integrate with any monitoring systems as well so that                     criteria
any improvements in power usage can be monitored
                                                                          i)   Once you have identified the obvious savings in
                                                                               terms of hardware for example, start to consider
Data Centre Design – the primary drivers for change will                       the secondary opportunities such as recycling
force business to change. Any policy changes must :                            heat
    •    Be quantified, based on usage and have                           j)   Appoint a manager who has responsibility to
         tangible benefits                                                     deliver the environmental strategy and ensure
                                                                               that it is reported on at Board level
    •    Integrate tools for monitoring power usage
    •    Take account of environmental effects along the
         complete lifecycle
    •    Usage of alternative energy sources


Strategic Planning Concerns

Over the next three years it is estimated that:


    •    50% of organisations will have implemented
         tangible environmentally friendly policies within
         their IT organisations


    •    25% of new data centres will have mechanical,
         electrical , thermal and computer hardware
         setups designed for maximum energy efficiency


    •    To achieve these ‘Green IT’ savings businesses
         should expect to have to increase their IT
         budgets by between 10 and 15%




Briefing sheets are provided free of charge to help increase knowledge and awareness. They may be freely copied. Care is taken to
ensure information is correct, however readers are advised to consult source documents for authoritative information.
Institution of Civil Engineers, One Great George Street, Westminster, London SW1P 3AA Registered Charity No. 210252

				
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