For a whole house that sounds reasonable? I’m at 4200 kWh a year with only 2 people in a 60 m² apartment. Durchlauferhitzer, but still. The link you posted eve

For a whole house that sounds reasonable? I’m at 4200 kWh a year with only 2 people in a 60 m² apartment. Durchlauferhitzer, but still. The link you posted even mentions a range of 14,000 - 28,000 kWh for houses not built for efficiency.