The course introduces the fundamentals of structural mechanics and strength of materials, as well as basics of soil mechanics and geotechnics relevant for renewable energy systems. Students study classification of structural systems, internal forces, stress–strain relationships, and limit states for engineering design (compression, tension, bending, shear, torsion). They also learn dynamic modelling of structures, elasticity theory, and numerical modelling of trusses, beams, and shells. The geotechnical part includes soil properties, stress states in soil, compressibility, shear strength, and fundamentals of shallow and pile foundations. Practical classes focus on solving static and dynamic structural problems and designing foundations for renewable energy structures, including wind turbine towers.