Method for determining voltages and/or power available in an electrical recharging network, said electrical network comprising at least one voltage generator and at least two dipoles, of which at least one recharging terminal i corresponding, at a first instant t 1, to a predetermined reference impedance z ii, characterised in that the determination method implements, at at least one second instant t 2, at least one iteration of the following successive steps, for said at least one recharging terminal i: - estimation of a change of said reference impedance z ii to a modified impedance z ' ii, - updating of a voltage of said recharging terminal i, said updating at least implementing a step for the determination of a modified inverted loop impedance matrix Z loop _ M − 1 as a function of a reference inverted loop impedance matrix Z loop _ R − 1 and at least as a function of an impedance difference between said modified impedance z' ii and said reference impedance z ii, delivering for said recharging terminal i a modified voltage U' i, said reference inverted loop impedance matrix Z loop _ R − 1 being obtained from a reference loop impedance matrix Z / oop _ R corresponding to a matrix multiplication such that: Z loop _ R = C t ∗ Z bb ∗ C with: C an incidence matrix of said electrical network obtained from a topology of said electrical recharging network in the form of an impedance network: Z bb a diagonal matrix containing a plurality of impedance values, each impedance z ii corresponding to a recharging terminal i of said plurality of dipoles, said modified inverted loop impedance matrix Z loop _ M − 1 being determined by a "Sherman-Morrison"-type relationship such that: Z loop _ M − 1 = Z loop _ R − 1 − z ′ ii − z ii Z loop _ R − 1 l i t l i Z loop _ R − 1 1 + z ′ ii − z ii l i Z loop _ R − 1 l i t with l i a row vector formed by the i th row of said incidence matrix C, - verification and/or update of a power value, said available power P disp _ i, ready to be delivered by said recharging terminal i based on said modified voltage U' i, of a maximum power supplied by said voltage generator, and/or a threshold voltage of said electrical network, delivering in case of an update, an updated available power. - estimation of a change of said reference impedance z ii to a modified impedance z ' ii, - updating of a voltage of said recharging terminal i, said updating at least implementing a step for the determination of a modified inverted loop impedance matrix Z loop _ M − 1 as a function of a reference inverted loop impedance matrix Z loop _ R − 1 and at least as a function of an impedance difference between said modified impedance z' ii and said reference impedance z ii, delivering for said recharging terminal i a modified voltage U' i, said reference inverted loop impedance matrix Z loop _ R − 1 being obtained from a reference loop impedance matrix Z / oop _ R corresponding to a matrix multiplication such that: Z loop _ R = C t ∗ Z bb ∗ C with: C an incidence matrix of said electrical network obtained from a topology of said electrical recharging network in the form of an impedance network: Z bb a diagonal matrix containing a plurality of impedance values, each impedance z ii corresponding to a recharging terminal i of said plurality of dipoles, said modified inverted loop impedance matrix Z loop _ M − 1 being determined by a "Sherman-Morrison"-type relationship such that: Z loop _ M − 1 = Z loop _ R − 1 − z ′ ii − z ii Z loop _ R − 1 l i t l i Z loop _ R − 1 1 + z ′ ii − z ii l i Z loop _ R − 1 l i t with l i a row vector formed by the i th row of said incidence matrix C, C an incidence matrix of said electrical network obtained from a topology of said electrical recharging network in the form of an impedance network: Z bb a diagonal matrix containing a plurality of impedance values, each impedance z ii corresponding to a recharging terminal i of said plurality of dipoles, said modified inverted loop impedance matrix Z loop _ M − 1 being determined by a "Sherman-Morrison"-type relationship such that: Z loop _ M − 1 = Z loop _ R − 1 − z ′ ii − z ii Z loop _ R − 1 l i t l i Z loop _ R − 1 1 + z ′ ii − z ii l i Z loop _ R − 1 l i t with l i a row vector formed by the i th row of said incidence matrix C, - verification and/or update of a power value, said available power P disp _ i, ready to be delivered by said recharging terminal i based on said modified voltage U' i, of a maximum power supplied by said voltage generator, and/or a threshold voltage of said electrical network, delivering in case of an update, an updated available power.