Yes, induction cooktops are much more energy efficient when compared to electric stoves and gas stoves. Induction cookers save 84% energy. On the other hand, gas stoves save 40%. Electric ones are responsible for 74% energy saving. The energy efficiency is calculated in the ratio of energy delivered to food to the energy the cooker consumes. However, keep in mind that this ratio depends on the heating surface as well as the pan size.