A hybrid electrical power supply control system for providing electrical energy to a load, as well as a corresponding method and a sensor comprising such control system

A hybrid electrical power supply control system for providing electrical energy to at least one load, said load alternating between a first low energy consuming operational modus and second high energy consuming operational modus, and wherein said control system comprises: a first power source comprising at least one battery unit and arranged to be switched to said load for supplying electrical energy;a second power source comprising at least one energy harvesting unit and arranged to harvest and convert energy into Direct Current, DC, energy, and wherein said converted DC energy is stored in a charge collecting unit, and wherein said second power source is further arranged to be switched to said load for supplying electrical energy; an operational modus detecting unit, arranged for detecting whether said load being in said first or in said second operational modus; a power source switching unit, connected to said operational modus detecting unit for receiving said detected first or second operational modus of said load, and arranged to connect said first power source to said load upon said load being detected to be in said first low energy consuming operational modus, and arranged to connect said second power source to said load upon said load being detected to be in said second high energy consuming operational modus.