A method for electrical energy extraction from a photovoltaic module based on Voltage-current characteristics the photovoltaic module being connected in parallel to the input of either a DC/DC converter or DC/AC inverter connected in parallel to a super-capacitor configured so that all electrical energy from the photovoltaic module is transferred to the super-capacitor continuously, and the super-capacitor connected in parallel to means for continuous voltage measurement of the super-capacitor U c which are connected to a control module of the DC/DC converter or the DC/AC inverter characterized in that, the control module: - acquires the voltage measured by the means for voltage measurement at the maximum power point of the photovoltaic module under maximal level of insolation and takes it as a first voltage reference U B along with its corresponding power level P B, - acquires the voltage measured by the means for voltage measurement at the maximum power point of the photovoltaic module under an intermediate level of insolation and takes it as a second voltage reference U 1 along with its corresponding power level P 1, stores an arbitrary third voltage reference U o as a minimum voltage being not less than 5% of the open circuit voltage of the module in case of the DC/DC converter and not less than 25% in case of the DC/AC converter along with a corresponding arbitrary power level P o and stores an arbitrary fourth voltage reference U off as a disconnection voltage being lower than U o; - adjusts the power reference P x for the DC/DC converter or the DC/AC inverter to one of the above values P B, P 1 or P o such that: - if the capacitor voltage U c rises and reaches value equal to U 0 or greater, the DC/DC converter or DC/AC inverter is turned on; if U c rises further and reaches value between U 1 and U B, P x is set to P 1; and if U c reaches value equal to U B, P x is set to P B; - if the capacitor voltage U c decreases to the value lying between U 1 and U o, the power reference P x is set to P 1; if U c decreases further to the value lying between U o and U off, P x is set to P o; and if U c decreases to the value lower than U off, the DC/DC converter or the DC/AC inverter is turned off. - acquires the voltage measured by the means for voltage measurement at the maximum power point of the photovoltaic module under maximal level of insolation and takes it as a first voltage reference U B along with its corresponding power level P B, - acquires the voltage measured by the means for voltage measurement at the maximum power point of the photovoltaic module under an intermediate level of insolation and takes it as a second voltage reference U 1 along with its corresponding power level P 1, stores an arbitrary third voltage reference U o as a minimum voltage being not less than 5% of the open circuit voltage of the module in case of the DC/DC converter and not less than 25% in case of the DC/AC converter along with a corresponding arbitrary power level P o and stores an arbitrary fourth voltage reference U off as a disconnection voltage being lower than U o; - adjusts the power reference P x for the DC/DC converter or the DC/AC inverter to one of the above values P B, P 1 or P o such that: - if the capacitor voltage U c rises and reaches value equal to U 0 or greater, the DC/DC converter or DC/AC inverter is turned on; if U c rises further and reaches value between U 1 and U B, P x is set to P 1; and if U c reaches value equal to U B, P x is set to P B; - if the capacitor voltage U c decreases to the value lying between U 1 and U o, the power reference P x is set to P 1; if U c decreases further to the value lying between U o and U off, P x is set to P o; and if U c decreases to the value lower than U off, the DC/DC converter or the DC/AC inverter is turned off.