When a refrigerator is unplugged, it doesn't consume electricity as it is disconnected from the power source. However, it's essential to clarify that even when unplugged, the refrigerator will still release some residual heat accumulated in its components and insulation. This heat is a result of the previous cooling process when the fridge was operational.
The amount of residual heat released after unplugging a refrigerator can vary based on the model, size, and how long it has been running before being unplugged. Generally, the heat release will be minimal, and it won't consume any significant amount of electricity since it is not actively running.
Keep in mind that if you unplug a refrigerator and then plug it back in, it might take a little extra energy to bring the temperature back down to the desired level initially. However, this extra energy consumption is negligible compared to the continuous energy use when the refrigerator is plugged in and running.