An unplugged refrigerator with its doors left open will not consume electricity in terms of actively running the compressor and cooling system since it's not connected to the power source. However, there is still a passive consumption of electricity due to other components in the refrigerator that may still draw a small amount of power.
The amount of electricity used in this situation is relatively minimal and varies depending on the refrigerator's make and model. Components such as interior lights, control panels, and fans (if equipped) may still draw a small standby power. This standby power consumption is commonly referred to as "phantom load" or "vampire power."
In modern refrigerators, the standby power consumption is generally low, usually in the range of 2 to 10 watts. If left unplugged and doors open, the electricity usage would be negligible over a short period. However, if left open for an extended period, it could still accumulate some energy usage over time.
Keep in mind that leaving the refrigerator doors open for an extended period is not advisable, as it can lead to the growth of mold and mildew inside the refrigerator and waste energy when you eventually close it and need to cool the contents again.