Our power bill comes to around 160-190 usually per month (mercury). For 3 people in the house, that seems *about* right, though still a bit high for me- reasons detailed below.
Over the course of the last few months, I spent the majority of my time overseas (3 weeks out, 1 week in NZ), which meant I wasn't home to use power. The power bill barely dropped.
Then my other flatmate has been away for about 3 weeks, and the bill still came to 160.
The third flatmate is barely home and barely uses many devices or electricity when they are home. Additionally, this flatmate replaced the previous person we had in who was VERY frugal with energy consumption and who was only home maybe 2 nights out of 7.
So I'm starting to wonder if there is another cause of the electricity bill. It seems to fluctuate around the 560-590kWh a month.
Is there any way of tracing what could be the case? The house is a 90's build, so not exactly new and I really couldn't comment on wiring.