I'm having a service named "FLET'S Miruene" provided NTT East, which visualizes a power consumption of house.
Image below shows hourly transition of whole house power consumption on a day in August. Data of previous day is displayed together. Data is gathered from sensors attached to the power distribution panel.
In the midnight hour, around 0.25kWh - 0.35kWh is spent. In these hours, refrigerator, STB with HDD recording function of cable TV, WiFi LAN station, NAS, and terminal device of Internet. As described below, power consumption of equipments regarding the network is 0.03kWh, so most of power is consumed by refrigerator. In the winter, in the same time, about 0.13kWh in consumed.
On previous day, before noon, started to use air conditioning, then a power consumption is rising rapidly. Air conditioning was keep running until evening, but power consumption is becoming lower.
In the evening, I went shopping with my family. It should be in the same state as midnight because all lighting turned off. But power consumption was a little higher, it may be due to the refrigerator.
The following image shows the hourly transition PC and related equipments power consumption of the same day. The data was gathered from the sensor attached to the outlet. The outlet is used by PC, WiFi station, NAS, and terminal device of B FLETS (Internet).
Only 0.03kWh is consumed by PC and peripherals when PC is in sleep mode. Since power consumption is almost the same as PC shut down, it means WiFi, NAS, and the terminal device consume about 30W.
It is about 0.08kWh if PC is not sleeped, and 0.12kWh when I use PC.
PC may run various tasks in midnight, but if you run the tasks in the time you use PC, not the midnight to keep it sleep from midnight to next evening, power consumption becomes lower.
Before I had run the tasks such as backups in midnight, but moved it to the time of 21 to 23 o'clock, when I often use PC. Then overall power consumption became lower, because my PC can sleep longer from midnight to evening next day.