A customer in my town has power bills of $150 / mo. My bill is $40 / mo.
Similarities
1. Same power company
2. 2 occupants
3. Neither of us use air conditioning. (Oxnard CA is heaven on earth)
4. Gas cloths dryer
5. Gas water heater
6. Gas furnace
Differences
I have a gas range. Customer has electric range.
I have a tract home. Customer's was a beach shack remodeled into a 2-story.
Other issues.
1. While working on an unrelated problem, I found 2 circuits cross connected. In other words, I have to turn off 2 breakers to kill power to either of these 2 circuits.
2. I found another circuit where neutral was short to ground.
I found these issues while looking for the circuit breaker upstream of some dead outlets. I didn't address these issues but I did restore power to the dead outlets, which is why the customer called.
Of course, I need to verify that he is using more Kwh than me so I have to compare power bills. There is a chance he's being billed differently.
My first step to look into the high power usage will be to unplug all outlets and turn off all lights and look for current flow into the main CB.
If no current draw, then I'll use a "Kill-a-watt" energy measure thingy on appliances.
Question:
Has anybody ever turned off everything and unplugged everything and seen significant current draw? If yes then what causes something like this?