Neither.
High power usage is evidence of NOTHING. My power consumption in the winter is at least 3x what my neighbors around me use, because our furnace is broken and we use space heaters.
So far, no investigation has occurred, nor have the police showed up at my door with a search warrant.
Now, in CONJUNCTION with other "evidence", it is a characteristic of a cannabis operation to consume a lot of power. However, simply consuming a lot of power isn't enough for the cops to get a search warrant, and if they investigated EVERYONE who used a lot of power they wouldn't have time for anything else.
Pay your bill on time, and don't steal electricity. You'll be fine.