"The Natural Philosopher" wrote in message
...
On 01/10/13 09:47, harryagain wrote:
"Andy Burns" wrote in message
...
John Williamson wrote:

The Natural Philosopher wrote:

I think that's a little on the high side, megawatts, yes.

Each.....

In 2011 the total UK datacentre power was estimated[1] as 6.4GW with
6.7%
growth P/A. Assume half that's cooling, so relatively smooth inductive
load, and the other 3.2GW is consumed during 4ms out of every 20ms
cycle,
which makes it equivalent to 16GW peak, or 2/3 of the UK's average base
load ... still insignificant Harry?


[1]
http://www.techweekeurope.co.uk/news/uk-data-centre-power-could-fuel-6m-homes-46116


" Power consumption in UK data centres was estimated to be 6.4GW
annually."

Interesting. What is anuual power consumption? Energy? GW isnt energy...

Most of it goes on cooling/ventilation not DC driven cevices.

twaddle.

even basic schoolboy theory will tell you that a heat pump can remove 3-4
times the power it consumes in terms of heat, so the natural ratio would
be 75% -80% devices producing (unwanted) heat and 20-25% running the
aircon.

Most of it goes on the fans shifting air.