100 likes | 188 Views
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
E N D
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 • 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. 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 • Percentage of Electricity Use • 2005 – 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 • 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 • Other Factors • Cloud computing • Datacentre efficiency • Power consumption per server Reduction in number of servers
Breakdown of Electricity Use in a Datacentre • 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 Switches Hard Disk Drives Solid State Disks Hubs Routers
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 policies Economic – Cut costs & increase profits Scientific – 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.)