go out and buy an amp meter ,take the readings of the computers
when their fired up
amps x whatever voltage you are using = watts
no one here can answer your question with out more information but
you can do it yourself with an amp meter and do the math or
better still get an electrician to do it
I have... Never went above 2 amps even during full load and while burning a CD
Barton 2600+@2.3GHz
1GB RAM
HDD
DVDRW
DVD
9800Pro
2CC lights
7 Case fans (3 of them led)
4 PCI cards
I would imagine that ups/generators like that cost huge.
So, the best solution (being backwards wise) would've been getting laptops. They don't really care if there's auxiliar power or not
Just to give you a rough reference I am currently running 12 servers (mostly dual Xeon boxes) on a single 13amp feed without issue. However there is a UPS between the mains and the computers which probably helps eliminate sudden spikes in demand.
Hi Ed,
that's interesting, since the puters came from donors in Devon, and were rebuilt there, Ill
copy and send to my boss in Barnstaple. another thing we need to calculate is how long are the blackouts.
hardware
prices 
