NOVELTY - The device has a photovoltaic cell assembly comprising primary photovoltaic cells, and an electrical storage element connected to terminals of the cell assembly, where the storage element comprises a capacitor. Switches (103, 104) are arranged between sub-sets of cells to arrange two sub-sets in series or in parallel. Each sub-set of cells comprises modules that are connected in series. Each cell of the sub-set is associated with a cell switch for being disconnected from remaining part of the device based on needs and measurements of temperature, voltage and current sensors.    USE - Device for generating photovoltaic energy to supply voltage or current to an electrical load such as three-phase synchronous or asynchronous motor, in a building, a power grid such as public power grid, or a vehicle.    ADVANTAGE - The cells of each sub-set of cells are associated with corresponding cell switches for being disconnected from the remaining part of the device based on the needs and the measurements of the temperature, voltage and current sensors, thus ensuring the disconnection of defective cells, allowing the isolation of all of the cells in the event of detection of major failure, to avoid electrical hazards for a user or persons such as firefighters in the event of fire, and allowing real time optimization of the operation of the cells, while allowing smooth adjustment of output voltage of the device without requiring high frequency chopping of full voltage of the device. The design of the device enables dissipating heat generated by power transistors of the device during operation, and enables the device to be adapted for different utilization requirements. The cell switches enable individual isolation of the cells by allowing the measurement of no-load voltage of each cell even if the device is under operation.    DETAILED DESCRIPTION - The switches are formed by transistors. An INDEPENDENT CLAIM is also included for a method for managing a photovoltaic energy generating device.    DESCRIPTION OF DRAWING(S) - The drawing shows a circuit representation of a photovoltaic energy generating device separated into multiple portions.    Output current (Is)    Output voltage (Vs)    Switches (103, 104)