The method (M) for the research of maximum available power in photovoltaic generators comprises: a step (1) of splitting up the total possible output voltage values (V) of a photovoltaic generator into a predetermined number (N) of voltage ranges (V
0 -V
1 ,...,V
N-1 -V
N ); a step (2) of assigning each of the voltage ranges (V
0 -V
1 ...V
N-1 -V
N ) respective priority values (x
i ; a step (3) of selecting a possible point of maximum absolute power (V
MPP ) of the photovoltaic generator. The method (M) also comprises repeating cyclically: a step (4) of selecting one of the voltage ranges (V
0 -V
1 ...,V
N-1 -V
N ) according to the priority values (x
i ); a step (5) of selecting one point of comparison (V
c ) within the selected voltage range; a step (6) of comparing the power value read in correspondence to the point of comparison (V
c ) with the power value read in correspondence to the possible point of maximum absolute power (V
MPP ); if the power value in the point of comparison (V
c ) is higher than the power value in the possible point of maximum absolute power (V
MPP ), a step (7) of setting the point of comparison (V
c ) as new possible point of maximum absolute power (V
MPP ), a step (8) of increasing the priority value (x
m ) of the selected voltage range and/or a step (9) of decreasing the priority value (x
j ) of at least one of the non-selected voltage ranges.