That would be flat out with a sine wave or something going through it. Chance are it would be a 10th of that. However, for a gig, two PA speakers, mixer, pedalboards, its going to add up, especially as gigging in the cold will be less than that total value.
Its going to be a 'how long is a piece of string' question, that depends on your setup. Set everything up through a power measurment plug and play for 10 minutes, multiply by 12 and see what you get!