Yeah, or someone involuntarily supporting their local pot farmer. Sometimes those guys put their plants through cycles of 90% sunlight; sunlight supplanted by several KW of halogen lights at night. OP believes the phantom power occurs at night. I would be looking for buried cables leading to the neighbor's tool shed.39 posts and you have not yet stated the electricity usage in electric units not money terms.
This is important to figure out the amount in kilowatt-hours you use.
Now cases like you describe happen from time to time and full invesigation shows something else is wired to your supply.
I can't instantly lay my hands on the reports but there have been cases of the street lights or road signs being wired in to an unsuspecting customer's circuit.
I'm not saing this has happened in your case but
You say that the pole was replaced just when the increase started. Is anything else fed from that pole. (make a real check not just a thought one).
Let us have the results.
