[Mrkrabz]

Well, what i am wanting to know, how much would it cost to run a 240W PSU for 24/7 Like per day and how much a month etc?

if anyone knows? Cause i got another older pc, and running shit on it

[iLinx]

240 w * 720 hr/m / 1000w/kW
172.8 kWh

My rate down here is 0.06/kWh so for me its
172.8 * $0.06CAD
= $10.368CAD

You would have to replace it with your own rate though, as i know power is much more expensive in the UK then it is here

Also remember that even though your psu is 240w it will probably only use 120-180 of that, if you wanted a more detailed calculation you could calculate the average usage of the psu by monitoring your outlet, and then calculating its efficiency, and using that information. For example a 1000w PSU that uses 200W and is 81% efficient at a 20% load will use around 30 extra watts