The paper presents an assessment of a relationship between shear modulus G 0, determined from CPTU and SDMT. The analysis was performed for a subsoil with a complex orygin, stratigraphy and lithology, on which it is planned to found a wind farm. This analysis was based on an identification of factors affecting the relationship between moduli obtained from CPTU and SDMT analyses. The introduction of a correcting function made it possible to produce a good statistical assessment of this relationship. The application of this dependence in the prediction of moduli G 0 using CPTU made it possible to construct a quasi 3-D model of rigidity of subsoil and isolate in the subsoil homogeneous zones for values of modulus G 0. The constructed model was the basis for the calculation of the other static and dynamic moduli for the design of foundations for wind farms.