Method for controlling the orientation (Θ) of a solar module, supported by - a single-axis solar tracker orientable about an axis of rotation for orientation of the solar module allowing following the Sun during its rise and its descent from east to west; and - the solar module including a photovoltaic device and having an photoactive upper face facing the sky and provided with photovoltaic cells and a photoactive lower face facing the ground and provided with photovoltaic cells; the method comprising: - measuring a distribution of the so-called incident solar luminance originating from incident radiation which is capable of reaching the upper face of the photovoltaic device, said distribution of the incident solar luminance being established according to several elevation angles (ΘSi) corresponding to several orientations of the solar module about the axis of rotation; - measuring a distribution of the so-called reflected solar luminance originating from the so-called albedo solar radiation (Ralb) which corresponds to the reflection of the solar radiation on the ground and which is capable of reaching the lower face of the photovoltaic device, said distribution of the of the reflected solar luminance being established according to several elevation angles (ΘNk) corresponding to several orientations of the solar module about the axis of rotation; - determining an optimum orientation (Θopt) of the solar module considering the measurements of the distribution of the incident solar luminance and of the distribution of the reflected solar luminance; - storing the past measurements of the distribution of the incident solar luminance and of the distribution of the reflected solar luminance in memory; - storing the past optimum orientations determined for the past measurements of the distribution of the incident solar luminance and of the distribution of the reflected solar luminance in memory; - forecasting the future evolutions of the distribution of the incident solar luminance and of the distribution of the reflected solar luminance, on the basis of the past measurements of the distribution of the incident solar luminance and of the distribution of the reflected solar luminance; - calculating the future evolution of the optimum orientation according to the forecast of the future evolutions of the distribution of the incident solar luminance and of the distribution of the reflected solar luminance; and - controlling the orientation of the solar module on the optimum orientation (Θopt) according to the past optimum orientations and according to the future evolution of the optimum orientation. - a single-axis solar tracker orientable about an axis of rotation for orientation of the solar module allowing following the Sun during its rise and its descent from east to west; and - the solar module including a photovoltaic device and having an photoactive upper face facing the sky and provided with photovoltaic cells and a photoactive lower face facing the ground and provided with photovoltaic cells; - measuring a distribution of the so-called incident solar luminance originating from incident radiation which is capable of reaching the upper face of the photovoltaic device, said distribution of the incident solar luminance being established according to several elevation angles (ΘSi) corresponding to several orientations of the solar module about the axis of rotation; - measuring a distribution of the so-called reflected solar luminance originating from the so-called albedo solar radiation (Ralb) which corresponds to the reflection of the solar radiation on the ground and which is capable of reaching the lower face of the photovoltaic device, said distribution of the of the reflected solar luminance being established according to several elevation angles (ΘNk) corresponding to several orientations of the solar module about the axis of rotation; - determining an optimum orientation (Θopt) of the solar module considering the measurements of the distribution of the incident solar luminance and of the distribution of the reflected solar luminance; - storing the past measurements of the distribution of the incident solar luminance and of the distribution of the reflected solar luminance in memory; - storing the past optimum orientations determined for the past measurements of the distribution of the incident solar luminance and of the distribution of the reflected solar luminance in memory; - forecasting the future evolutions of the distribution of the incident solar luminance and of the distribution of the reflected solar luminance, on the basis of the past measurements of the distribution of the incident solar luminance and of the distribution of the reflected solar luminance; - calculating the future evolution of the optimum orientation according to the forecast of the future evolutions of the distribution of the incident solar luminance and of the distribution of the reflected solar luminance; and - controlling the orientation of the solar module on the optimum orientation (Θopt) according to the past optimum orientations and according to the future evolution of the optimum orientation.