Quoted from Wolfmarsh:If we just do some rough math on a machine that draws 5 amps, that's 0.6kw/h, so if your cost per kw/h is $0.15, then the cost to run a machine for 1 hour is $0.09.
Out of curiosity, I was able to check my local electric supplier website and they show hourly breakdown of my usage. I was able to review when people were playing pinball and all my machines were on, and yeah, I'd peg it at about $1 an hour for the whole shebang, at the rates I pay.