Yes, $26$kw is extremely high for a 1-bedroom bungalow, even a very cold one, and likely indicates a major issue such as a faulty meter or a high-draw appliance being left on
. A typical household of 1-2 people uses around

15−2015 minus 20
15−20
kWh per day, which is significantly less than your reported $26$kWh, as shown on NRG Clean Power. Your usage should be considerably lower, as you're not there for 2 days a week and only do one wash per week.