What's a "normal mile" regarding energy consumption?

There is a series of standardized driving profiles that is averaged to get a comparable, somewhat realistic value.

just guessing, it's a standardized way to declare the driven distence, given all the variables.. such as: up hill, down hill, low/high rolling resistance surface?

I think the poster means the EPA test cycle for miles, they have a pre-defined "cycle" of acceleration, braking, coasting etc for Highway ratings and City driving.