The basic aerodynamic force characteristics of a photovoltaic panel installed near the ground were studied in two types of shear flow. The aerodynamic force coefficients of a two-dimensional flat plate model were measured in a wind tunnel with varied height and angle of attack. The difference of the shear flow could approximately be considered by taking the reference wind speed at the height of the model center. The ground effects tendency generally changed in the order of smooth flow, less sheared flow and more sheared flow. Lift-to-drag ratio of the panel model was almost constant regardless of the model height when the angle of attack was equal or larger than 10 degrees.