I have read this page: How to convert amps to kilowatts
I often purchase electricity from a supplier to power computing equipment within a data centre. Some sell me 10 amps, some sell me 2.16 kWh.
When they say 10A, they essentially mean I can draw up to 10A of power (at a usual 240v, single phase AC), continuously, each month (as I am billed monthly). If I purchase 2.16kWh, that means constantly, for a whole month (again it comes from 240v single phase AC feed).
So even though that article linked above states you can not compare amps [*1] and kWh directly, as long as I am using them in the same frame of reference (i.e. the single phase, 240v), can I directly compare them when making my supplier price comparisons for those selling to me as 10A and those selling to me 2.16kWh (assuming they are both providing 240v single AC feeds [*2]) ?
[*1] I understand that amps are an instantaneous snap shot of current, so in this scenario I am really talking about continuous amp hours
[*2] All throughout I have assume a generic power factor of 0.9, just in case you wondered about my dodgy maths :)