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Green	
  Cloud?	
  
The	
  current	
  and	
  future	
  development	
  of	
  energy	
  consumption	
  by	
  data	
  
center...
Typical workplace:
PC:	
  120	
  Watt
Monitor:	
  70	
  Watt
Annual	
  power	
  consumption:	
  400	
  kWh/a	
  
And today?
Notebook	
  
23	
  Watt,	
  annual power	
  consumption:	
  54	
  kWh
Tablet
4	
  Watt,	
  annual power	
  cons...
Cloud	
  computing is efficient…
§ Lean,	
  efficient end-­‐user	
  devices
§ Large,	
  efficient cloud data center
§ B...
But:	
  
Cloud	
  computingis growing extremly
• More	
  and more servers and data centers
• More	
  network infrastructur...
Forecasts
Source:	
  Cisco	
  2015
Netto	
  effect:	
  rising or decreasing energy consumption?
Study	
  prepared	
  for	
  the	
  German	
  Federal	
  Minis...
Findings:	
  Annual	
  IT	
  energy	
  consumption	
  in	
  Germany	
  in	
  2010	
  
and	
  2015
Source:	
  Stobbe	
  et	...
Our approach:	
  ICT	
  is global
types	
  of	
  devices,	
  their	
  technical	
  characteristics,	
  usage	
  patterns,	...
Some	
  facts	
  that	
  demonstrate	
  the	
  limitations	
  of	
  the	
  approach
§ Germany	
  has	
  a	
  relatively	
...
Some figures
Stock	
  of	
  IT	
  devices	
  in	
  Germany	
  and	
  the	
  world	
  (in	
  millions)
Germany World
2010 2...
Findings:	
  Annual	
  global	
  IT	
  energy	
  consumption	
  in	
  2010	
  and	
  2015
Forecast:	
  Energy	
  consumption of global	
  cloud computing
The	
  impact	
  of	
  cloud	
  computing	
  on	
  IT	
  energy	
  consumption
§ Energy	
  consumption	
  by	
  networks	...
Thank you!
Questions?
ICT4S - Green cloud? the current and future development of energy consumption by data centers, networks and end user devices
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ICT4S - Green cloud? the current and future development of energy consumption by data centers, networks and end user devices

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Dr. Ralph Hintemann, Dr. Jens Clausen

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ICT4S - Green cloud? the current and future development of energy consumption by data centers, networks and end user devices

  1. 1. Green  Cloud?   The  current  and  future  development  of  energy  consumption  by  data   centers,  networks  and  end-­‐user  devices   Dr. Ralph Hintemann, Dr. Jens Clausen ICT4S Amsterdam, August 2016
  2. 2. Typical workplace: PC:  120  Watt Monitor:  70  Watt Annual  power  consumption:  400  kWh/a  
  3. 3. And today? Notebook   23  Watt,  annual power  consumption:  54  kWh Tablet 4  Watt,  annual power  consumption:  11  kWh Smartphone <  1  Watt,  annual power  consumption:  2,5  kWh  
  4. 4. Cloud  computing is efficient… § Lean,  efficient end-­‐user  devices § Large,  efficient cloud data center § Better  capacity  utilization Masanet et  al.  (2014):   technical  savings  potential  of  87%  of  energy  consumption   if  typical  office  applications  are  shifted  to  the  cloud  
  5. 5. But:   Cloud  computingis growing extremly • More  and more servers and data centers • More  network infrastructure (mobile  and fixed networks) ©  ristaumedia.de  -­‐ Fotolia ©  vschlichting -­‐ Fotolia.com ©  ristaumedia.de  – Fotolia.com
  6. 6. Forecasts Source:  Cisco  2015
  7. 7. Netto  effect:  rising or decreasing energy consumption? Study  prepared  for  the  German  Federal  Ministry  of  Economic  Affairs  in  2015: Annual  IT  energy  consumption  in  Germany Model  base  calculations  with  more  than  90  different  product  groups Four  basic  parameters  were  determined  for  each  product  group: § Type  and  number  of  devices   § Load-­‐dependent  electric  power  consumption § User-­‐specific  applications  and  load  profiles § Dependencies  on  other  product  groups
  8. 8. Findings:  Annual  IT  energy  consumption  in  Germany  in  2010   and  2015 Source:  Stobbe  et  al.  2015,  representation  by  authors What about the global  development?
  9. 9. Our approach:  ICT  is global types  of  devices,  their  technical  characteristics,  usage  patterns,  and  dependencies   between  product  groups  vary  only  little  in  the  globalized  world Projecting the  findings  from  Germany to  the  global  development  
  10. 10. Some  facts  that  demonstrate  the  limitations  of  the  approach § Germany  has  a  relatively  good  network  infrastructure § The  structure  of  data  centers  in  Germany  is  significantly  different  from  that  in   other  countries:   § German  data  centers  are  the  most  modern  in  Europe  in  terms  of  the  age  of   the  buildings,  the  IT  equipment,  etc.  (DCD  Intelligence)   § Germany  has  been  a  less  attractive  location  for  major  cloud  providers  to   date—among  other  things  because  of  high  electricity  prices     § The  structure  of  television  sets  in  Germany  is  very  different  from  the  global   average:   § Share  of  CRT  devices  in  Germany  in  2015:   18  %,   § global  share  of  CRT  devices  in  2015:   40  %    
  11. 11. Some figures Stock  of  IT  devices  in  Germany  and  the  world  (in  millions) Germany World 2010 2015 2010-­‐2015 2010 2015 2010-­‐2015 Servers 1.9 2.2 +16% 40.9   53.0   +30% PCs  incl.  thin  clients 33.2 30.3 -­‐9% 1319.0   1127.5 -­‐15% Laptops 33.5 42.5 +27% 681.0 1126.4 +65% Smartphones  and   tablets 14.7 93.6 +537% 419.0 4301.0 +926% TVs 61.1 68.6 +12% 2350.0 2570.0 +9%
  12. 12. Findings:  Annual  global  IT  energy  consumption  in  2010  and  2015
  13. 13. Forecast:  Energy  consumption of global  cloud computing
  14. 14. The  impact  of  cloud  computing  on  IT  energy  consumption § Energy  consumption  by  networks  and  data  centers  will  presumably   increase  very  significantly  between  2010  and  2025 § The  decline  in  IT  end-­‐user  devices'  energy  consumption  during  the   period  under  consideration  is  considerable.  But  there  is  a  significant   increase  in  the  number  of  smartphones  and  tablets,  while  the   number  of  the  other  end-­‐user  devices  is  not  decreasing  overall.   § Total  IT  energy  consumption  will  increase  in  the  future.  To  a  large   extent,  this  development  is  to  be  attributed  to  cloud  computing.  
  15. 15. Thank you! Questions?

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