Comments on: Google: ‘The World’s Most Efficient Data Centers’

By: Après Google, Facebook intègre des batteries dans les serveurs de ces Data-Center - Philippe Scoffoni

Thu, 29 Apr 2010 09:53:40 +0000

[...] data-center grâce à l’air extérieur permettent aux derniers data-center de Google d’atteindre un chiffre record du Power Usage Effectiveness ou PUE de 1.13. Pour rappel voici la définition du PUE d’après le site GreenIT [...]

By: Julien Airaud · GreenIT links round up

Julien Airaud · GreenIT links round up — Thu, 04 Dec 2008 12:37:38 +0000

[...] PUE & DCiE (metrics) documented at The Green Grid : http://www.thegreengrid.org/gg_content/TGG_Data_Center_Power_Efficiency_Metrics_PUE_and_DCiE.pdf PUE is an emerging standard promoted by The Green Grid and others in the data center industry to provide a consistent way to measure the ratio of power delivered to IT equipment versus the total amount of power used by the facility. PUE allows data center managers to calculate how much power is driving the actual IT equipment versus non-IT elements such as cooling and lighting — Datacenter knowledge [...]

By: Lenny

Lenny — Tue, 11 Nov 2008 12:06:04 +0000

All, I am currently running large commercial data centers with a PUE of less than 1.3. When the infrastructure becomes more fully loaded I expect it to drop to 1.26 – 1.28. This is in an large co-location site with out containers all built with off the shelf products.
I am currently implementiong some free cooling and expect to drop the PUE to an annualised PUE of around 1.15.
This is without alternative energy forms.
I see googles / mircosofts numbers being quite reasonable and easy to achieve without spending big on infrastructure. Going green does not means spending big dollars, it means spending your dollars in the right areas.

By: Microsoft Chicago Data Center Launches « The Digital Cave

Microsoft Chicago Data Center Launches « The Digital Cave — Mon, 20 Oct 2008 17:51:39 +0000

[...] PUE measurement is among the lowest reported, and very close to energy efficiency data recently reported by Google, suggesting that both companies are on the cutting edge in their efforts to make their data [...]

By: carl m

carl m — Wed, 15 Oct 2008 00:32:18 +0000

It is interesting to me that Google does not highlight to the media the infrastructure in place that makes a PUE of 1.12 possible? A data center having unlimited alternative power should not set a standard for all others to follow (for PUE purposes only). Without the assistance of alternative power, a PUE 1.12 is impossible to achieve. SUN also claims a low PUE and my best bet would be that they have alternative power available too. In the upcoming year(s) I hope to see EPA separate bio fuels from alternative power in PUE calculations. I certainly looked into a 2MW PV grid but unfortunately (in my area) there is not the space.

By: Power Usage Effectiveness (PUE) « Chris Vaughan

Power Usage Effectiveness (PUE) « Chris Vaughan — Thu, 02 Oct 2008 19:53:03 +0000

[...] article on Google having the lowest ever “published” efficiency score to [...]

By: Google Shoots but misses PUE Target « The Digital Cave

Google Shoots but misses PUE Target « The Digital Cave — Thu, 02 Oct 2008 16:19:01 +0000

[...] not drive into the analysis further. Data Center Knowledge originally broke the news here. The numbers they tout are given just the most passive of glances despite some very [...]

By: L’Innovation comme avantage compétitif au service des métiers : l’exemple des datacenters de Google « Entreprise 2.0

Thu, 02 Oct 2008 15:09:11 +0000

[...] Google annonce fièrement : “We’re happy to report that today, on average for all Google designed data centers, we meet the EPA’s most optimistic scenario for 2011” et marque les esprits : “In the time it takes to do a Google search, your own personal computer will use more energy than we ….” [...]

By: Ron Croce, Validus DC Systems

Ron Croce, Validus DC Systems — Thu, 02 Oct 2008 13:33:38 +0000

I’m excited to see Google take such a strong approach to promoting greater data center efficiency. But, I think what’s lost in this post is one of the most inherent issues with the efficiency of a data center to begin with: facility level power distribution. This is, however, called out on Google’s website (http://www.google.com/corporate/datacenters/step1.html), saying, “Up to a third of the total energy consumed by a typical server is wasted before reaching the computing components. The majority of these losses occur when converting electricity from one kind to another. The power supply, which converts the AC voltage coming from a standard outlet to a set of low DC voltages, is where most of the energy is lost.” While technologies like “evaporative cooling techniques” are certainly important in taking excessive heat, by fixing the problem at the root – inefficient electric distribution – you can generate less heat in the first place (which means less to cool). This occurs because, as Google notes, there are conversions (AC to DC), as well as transformations (higher voltage to lower voltage), that need to take place in a data center, which create excess heat at each point of change. With AC power distribution you are looking at 5-7 conversions and transformations, opposed to 2 with DC power distribution – reducing energy consumption anywhere from 15-50%. When it comes to energy efficiency in the data center, I’m as big a fan as anyone of unique and inventive technologies, but if you simply start at the source (electricity), you may be surprised how far you’ll get (www.validusdc.com).

By: Google Touts Energy Efficient Data Centers - Bits Blog - NYTimes.com

Google Touts Energy Efficient Data Centers - Bits Blog - NYTimes.com — Wed, 01 Oct 2008 23:41:13 +0000

[...] Miller, editor of DataCenterKnowledge.com, a Web site that tracks the industry. Mr. Miller, who has a more detailed analysis of Google’s disclosure on his Web site, said he welcomed Google’s willing to pull back [...]