said by pende_tim:Did something out in the pool get turned on accidentally- like a motor- and it is running constantly?
Based on what you say, this is about 40KWH/day higher than normal.
This is a constant 2KW load, almost 10 amps at 220volts. Is there a greenhouse in your basement? Someone hatching chicks?
Seriously, maybe a space heater somewhere? or the sump pump may be stalled? Is the Air Conditioner drawing this? Do you have an electric hotwater heater? Is there a leak in the pipes or a running faucet? A second oven that was used at Thanksgiving that never was turned off?
Best way is to get a clamp on amp meter and check the panel. Look for a load where there should not be a load.
All great ideas, but it's pretty much certainly the outdoor sump pump. It was warm down in the pit and the motor was hot and buzzing. Again, no time for diagnostics - it's too cold out for that. Just shut it off and I'll check the meter in a few days to see what the burn rate is.
The pool pump is off - that breaker is shut off for the season. The AC's off too. Hot water/oven/furnace/fireplace/grill are all natural gas. Just the pump as far as I can tell.
Of course the Christmas lights & tree burn some electricity as well, so that'll help next month's bill as well, but as far as I can tell, it was the stuck pump that was the issue.
