Construction design of electrical grid, 110/6 kV (110/6 kV Mažeikiai power plant transformer substation) transformer substation and manufacturing, industrial building at Mažeikių g. 71, Mažeikiai Region Municipality, Židikių Eldership, Juodeikiai Village. Construction of a 110 kV equipment, construction of a 110 kV cable line, construction of a closed switchgear equipment building and outdoor equipment, installation of a closed switchgear, installation, commissioning and adjustment of relay protection, teleinformation and telecommunication systems.