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Growth in Datacentre Electricity Use 2005 – 2010. Growth in Datacentre Electricity Use 2005 to 2010. 2011 paper by Jonathan G. Koomey, Ph.D. and Consulting Professor, Stanford University. . Main Findings. Growth of Datacentre Electricity Use 2005 – 2010 - PowerPoint PPT Presentation
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Growth in Datacentre Electricity Use 2005 – 2010
Growth in Datacentre Electricity Use 2005 to 2010
2011 paper by Jonathan G. Koomey, Ph.D. and Consulting Professor, Stanford University.
Growth in Datacentre Electricity Use 2005-2010Main Topic•Results of growth in electricity use in datacentres from 2005 to 2010•Growth in electricity use vs. previous 5 year period•Percentage of electricity used by datacentres - Globally & in the U.S.•Reasons for the slowdown in growth
EPA Growth Projections for 2005-2010Secondary Topic•Projected growth figures vs. actual growth•Reasons for differences between papers•Methods used to analyse data
1. Growth of Datacentre Electricity Use2005 – 2010
• Globally - electricity use in datacentres grew by 56%
• U.S. - electricity use in datacentres grew by 36%
• Difference of 44% - Globally• Difference of 64% - U.S.
Main Findings
Both global and U.S. rates had doubled for 2000 - 2005
Due to reduction in server installed base & changes to the power use per server
Main Findings
2. Percentage of Electricity Use2005 – 2010
• 1.1 - 1.5% of global electricity use• 1.7 – 2.2% of U.S. electricity use
Average Power Consumption
• Global – 23.2 to 34.4 gigawatts• U.S. – 7.7 to 12.3 gigawatts
Main Findings
3. Projected Growth vs. Actual Growth• Globally - Electricity use projected to grow to
2.2% of total electricity used vs. actual growth to 1.3%
• U.S. - Electricity use projected to grow to 3.5% of total electricity used vs. actual growth to 2%
Projected growth = All trends continue.Upper bound = IDC figures for no. of servers + ‘00 – ’05 electricity use per server continues.Lower bound = IDC figures for no. of servers + no change to electricity use per server.Actual growth = Mid-point of upper and lower bound
Reasons for Slowdown in Datacentre Electricity Use
Virtualisation
•Higher server utilisation•Multiple virtual servers on single physical server•Less servers = Less electricity useFinanci
al Crisis
•Economic slowdown – companies cut costs by reducing numbers of servers•Less servers = Less electricity use
Reduction in number of
servers
Other Factors
• Cloud computing
• Datacentre efficiency
• Power consumption
per server
Breakdown of Electricity Use in a Datacentre
Servers
Volume Servers
Mid-Range Servers
High End Servers
Hard Disk Drives
Solid State Disks
Switches
Routers
Hubs
• Volume servers are the single biggest consumers of electricity in the datacentre
• Future power per server more important than server installed base
• Infrastructure equipment is the biggest group consumer of electricity
• Storage capacity less important than number of spindles
Breakdown of Electricity Use in a Datacentre
PUE - Power Usage Effectiveness: Used to measure efficiency of datacentre.
Total Power Entering Facility Power Consumed by IT Equipment PUE Ideal PUE = 1. This means that all the power entering a datacentre is consumed by the IT equipment.
Why is this an area of interest to the electronics industry?
Drivers to Reduce Electricity Use
Political & Legal – legislation, regulation and policiesEconomic – Cut costs & increase profitsScientific – Prevent damage to environment (e.g. greenhouse effect)Social – Reputation of company, social influence businesses, corporate social responsibility
Factors Affecting Future Electricity Use in Datacentres
• Virtualisation• Cloud computing – Higher server utilisation & less electricity• Power consumption per server vs. numbers of servers• Datacentre efficiency – since 2006 datacentre efficiency improving through
practices (e.g. more efficient heating & AC, smart lighting , etc.)
Questions?