Think of electricity like water flowing through a pipe: Amps = the amount of water. Volts = the pressure pushing the water. To figure out wattage (watts), multiply amps by volts. Example: If a device uses 2 amps at 120 volts, it consumes 240 watts (2 amps x 120 volts = 240 watts). Understanding watts helps you know how much power an appliance uses and how to size an inverter and battery setup for your home’s backup power supply. | Rob Benson