It runs using a NodeMCU and measures voltage and current across a 100-ohm resistor to calculate the power use, although the resolution does start to get noisy when the device is in standby/sleep mode.

We can use this information to our advantage to calculate the maximum amount of power that a computer will consume, so long ...

However, it's best to calculate saving estimates based on your ... taking into account seasonal variations in power usage. Most households in Australia will consume around a maximum of 24kWh ...