by lorenzo » Sat 22 Jul 2006, 10:44:59
I found these interesting pieces about the rising energy costs of server farms. Soon, the electricity to run a server will cost more than the actual cost of that server! That's how dramatic the situation is.
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Google warns of spiralling energy costsIt could soon cost more to power you server than buy it according to a Google engineer
A Google engineer has warned that if the performance per watt of today's computers doesn't improve, the electrical costs of running them could end up far greater than the initial hardware price tag.
That situation that wouldn't bode well for Google, which relies on thousands of its own servers.
"If performance per watt is to remain constant over the next few years, power costs could easily overtake hardware costs, possibly by a large margin," Luiz Andre Barroso, who previously designed processors for DEC, said in a September paper published in the Association for Computing Machinery's Queue. "The possibility of computer equipment power consumption spiralling out of control could have serious consequences for the overall affordability of computing, not to mention the overall health of the planet."
More here:
http://news.zdnet.co.uk/hardware/server ... 045,00.htm
[Nobody knows how many servers Google operates, but it is estimated to be in the tens of thousands.]
Now just imagine that energy prices go through the roof; this will imply that the internet might expand far less quickly or even decay. Business, government, citizens, would suffer; our entire society has become very dependent on the internet. Obviously, this would be a huge disaster for mankind.
But there are pretty nice solutions. I have one, I think:
1. Most of the energy used to operate a server farm goes to cooling.
2. The world's best wind energy places are there where very few people live. See this world wind energy potential map:
http://www.worldchanging.com/images/windmap.jpg
3. Some of these places are also consistently cool.
Now comes the catch. It is difficult to invest in wind energy there, because nobody lives there. It would also be prohibitive to export electricity thousands of miles away to populated areas, the line losses would be too great.
But you can put a server park there, power it by wind, and export the data. Because contrary to electricity which travels 'physically', these data travel 'virtually', in fibre-optic cables that have been laid in the oceans - no line losses worth mentioning here.
The world's busiest data cables all come pretty close to the areas with huge wind potential: New Foundland, the Aleutians.
Check this map for those transoceanic internet cables:
http://www.cybergeography.org/atlas/alcatel_large.gif
So instead of exporting electricity, you export data. The electricity is cheap, the server farm's cooling requirements are partly solved by the cool ambient temperatures. Moreover, these far away places won't be targetted by terrorists anywhere soon, etc... So this could be a very good deal.
Simple but brilliant idea, isn't it? (ehe). Anyone want to invest?