gas water heater. the second fridge has been unplugged the last month and our bill didnt change a dime. well, maybe a dime. as for the tank, i do have metal halides and understand that they do use up quite a bit, not to mention the water pump, heaters etc. as luck would have it, my tank actually went down (my 2 year old daughter decided to feed a gallon of sugar to my fish) so that has been unplugged completely for the past 2 months. there was a bit of a dip in our bill (100 or so). i didnt expect it to account for much more than that.
one thing i do recall....pge recently installed these smart meters in our home...say about 6 months ago. before that, we had the old style meters with the rotating dial. one thing i recall, when going through this, was when we turned our dryer on, the dial literally almost went berserk , where it was spinning ridiculously fast. i havent checked it recently with the new meter. its almost as if my wife and i have grown accustomed to having a 1000 pge bill, so we have pretty much given up. based on all the comments, it may be worth revisiting once again. i think i will try the turn everything off and then turn it on one by one to see if anything shoots outta control.