Method for characterising a zone of land intended for the installation of photovoltaic panels

A method for characterizing a zone of a land, called a target zone, intended for installation of photovoltaic panels, the target zone receiving direct solar radiation and extending over at least two meters in length and at least two meters in width, at least part of the target zone being shaded over time by at least one obstacle, the method being implemented by computer and comprising the following steps:

• a. receiving a bird's eye view image of a land comprising at least one target zone,
• b. detecting, on the image, a shadow cast onto the target zone, the cast shadow coming from an obstacle,
• c. determining a dimension, called the main dimension, of the detected cast shadow, the main dimension corresponding to a height of the obstacle,
• d. determining a position of the sun when acquiring the image on the basis of characteristics relating to the image,
• e. determining the height of the obstacle on the basis of the main dimension determined for the shadow cast and the determined position of the sun, and
• f. characterizing the target zone on the basis of the height determined for the obstacle,
• wherein the characteristics of the image used in the step of determining the position of the sun comprise only the date of acquisition of the image, the geographical coordinates of a point of the image and a geometric characteristic of the cast shadow considered.