Abstract: A liquid heating appliance for making a beverage, the liquid heating appliance comprising: a plurality of heating components for heating a liquid, where at least a first of the plurality of heating components is powered using mains power, a power management system, wherein the power management system comprises: a controller, and an energy storage device, wherein the controller is arranged to: control an amount of the mains power applied to the first of the plurality of heating components, control an amount of stored power from the energy storage device to be applied to at least a second of the plurality of heating components, and switch polarity of the voltage of the stored power from the energy storage device to be applied to the second of the plurality of heating components after one or more heating cycles associated with the second of the plurality of heating components.

Abstract: An energy management system (401) for a kitchen appliance (201), the energy management system (401) comprising: a mains power system, a backup energy storage system (405), and a con-troller (411), wherein the controller (411) is arranged to: determine a state of health of the energy storage system; determine a state of charge of the energy storage system; determine how energy from the energy storage system is to be used based on the determined state of health, the determined state of charge and at least one measured variable obtained from a kitchen appliance (201), and apply the energy to operate at least one function of the kitchen appliance (201).

Abstract: A liquid heating appliance for making a beverage, the liquid heating appliance comprising: a plurality of heating components for heating a liquid, where at least a first of the plurality of heating components is powered using mains power, a power management system, wherein the power management system comprises: a controller, and an energy storage device, wherein the controller is arranged to: control an amount of the mains power applied to the first of the plurality of heating components, control an amount of stored power from the energy storage device to be applied to at least a second of the plurality of heating components, and switch polarity of the voltage of the stored power from the energy storage device to be applied to the second of the plurality of heating components after one or more heating cycles associated with the second of the plurality of heating components.