According to my Powershop account page,
Old place: $40-50/month @ 4.5 kWh/day (working from home)
New place: $90-100/month @ 9.5 kWh/day (no longer working from home)
The only differences now are a hot water tank and a full-sized fridge (compared to half-sized at old place).
I only use the hot water for a warm shower daily (under 5 minutes). Laundry and faucets are always used cold.
Haven't bought any new electronics or appliances (in fact, I use and own fewer now).
I was away for a whole week over Christmas, and my power usage was still 4-5 kWh/day with nobody at the apartment!
That's basically the same as my usage at the old place, except I was actually at home the whole day for work/covid lockdowns back then.
Even while asleep now, at 12AM-7AM, it seems I use between 1.2-1.6 kWh (laptop is not plugged in, no personal appliances left on overnight).
The only thing I can think of is something is wrong with the fridge? I always keep it relatively full too, because an empty fridge uses more electricity IIRC?