Without electricity, your induction cooker cannot generate the magnetic field that's needed to heat up your pots and pans. So, in one sense it’s fair to say that it uses more electricity than your gas stove when it’s connected to the mains. Crucially though, there are efficiency gains to be had from using an induction cooker. * Induction cooktops heat pans up extremely quickly, and adapt just as quickly to temperature adjustments. * Because the process is faster overall, you don’t have to keep the cooking surface powered for as long. There are far too many variables at play when it comes to comparing the cost of gas stoves with electric rings and induction hobs. To give a very broad answer to this question though, there is no reason to believe that using an induction cooktop will dramatically increase your kitchen power consumption.