How much electricity do you use in 30 minutes?

The amount of electricity used in 30 minutes depends on the wattage of the devices being used. For example, a 100-watt light bulb consumes 50 watt-hours in half an hour. To calculate your total usage, you can multiply the wattage of each device by the time in hours (0.5) and then sum the results. Overall, usage can vary widely based on the number and type of devices in operation.