When a mini-fridge is plugged in but not running or unused (i.e., the compressor is not actively cooling the interior), it still consumes some electricity to power its internal components such as the thermostat, interior light (if equipped), and other electronics. This consumption is often referred to as "standby power" or "phantom load."
The amount of electricity consumed by a mini-fridge in this standby mode can vary depending on the specific model and its energy efficiency. However, on average, a mini-fridge may consume anywhere from 1 to 5 watts of power when in standby mode.
Let's assume the mini-fridge consumes 3 watts while in standby. To calculate the energy usage over time, we can use the following formula:
Energy (kWh) = Power (kW) x Time (hours)
Converting watts to kilowatts: 3 watts = 3/1000 = 0.003 kW
If the mini-fridge is plugged in but unused for 24 hours, the energy consumption would be:
Energy (kWh) = 0.003 kW x 24 hours = 0.072 kWh
Keep in mind that this is just an estimate, and actual standby power consumption may vary. Additionally, energy-efficient mini-fridges may consume less electricity in standby mode compared to older or less efficient models. If you're concerned about electricity usage, consider unplugging the mini-fridge when it's not in use or using a smart power strip to cut off power to the appliance when it's not needed.