The power consumption of an electric standing desk typically depends on the motors and the specific design of the desk. On average, electric standing desks use between 100 to 300 watts while adjusting the height. Some key points to consider:

1. Active Usage: When the desk is actively being raised or lowered, it usually consumes between 100 to 300 watts of power. The exact wattage depends on the power of the motors used in the desk.

2. Idle State: In the idle state (when the desk is not being adjusted), most electric standing desks consume very little power, often less than 1 watt. This is because the motors and control systems enter a low-power standby mode.

3. Usage Duration: Since the desk is not constantly being adjusted, the overall power consumption throughout the day is relatively low. The majority of the time, the desk remains in a static position, either raised or lowered.

4. Energy Efficiency: Some desks may have more energy-efficient motors and control systems, which can further reduce power consumption. It's worth checking the specifications of a particular model to understand its power requirements.

In summary, while the power consumption of an electric standing desk during height adjustment can be up to 300 watts, the overall daily power usage is minimal due to the short duration of adjustments and low standby power consumption.