Google's PUE

Daniel Golding dgolding at
Thu Oct 2 19:15:29 UTC 2008

I am really skeptical of this, Patrick. PUE's of between 1.2 and 1.3 -  
sure. But below 1.2 on an annual basis? And its not even their newest  
facility. Color me skeptical.

- Dan

On Oct 1, 2008, at 1:52 PM, Patrick W. Gilmore wrote:

> [#include: boiler-plate apology for operational content]
> Google has released its PUE numbers:
> <>
> There is a nice explanation of this, including a graph showing why  
> DC efficiency is more important than machine efficiency (on the  
> second page) at this link:
> < 
> >
> I think GOOG deserves a hearty "well done" for getting a whole DC  
> under 1.2 PUE for a whole year.  (Actually, I think they deserve a  
> "HOLY @#[email protected], NO @*&@#-ing WAY!!!")
> Personally, I think only a self-owned DC could get that low.  A  
> general purpose DC would have too many inefficiencies since someone  
> like Equinix must have randomly sized cages, routers and servers,  
> custom-built suites, etc.  By owning both sides, GOOG gets a boost.   
> But it's still frickin' amazing, IMHO.
> For their next miracle, I expect GOOG to capture the waste heat from  
> all their servers and co-gen more electricity to pump back into the  
> servers. :-)
> -- 
> patrick

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