A heavily used hairdryer is typically in use for 5 minutes per day, so a 1500-watt-peak hairdryer might average 5.2 watts. It needs 1500 watts of batteries (sa

A heavily used hairdryer is typically in use for 5 minutes per day, so a 1500-watt-peak hairdryer might average 5.2 watts. It needs 1500 watts of batteries (say, 3kWh of 0.5C batteries, or 0.4kWh of 4C batteries), not 1500 watts of solar panels.