-LV, MV, HV electrical equipment testing and commissioning-functional testing of switchgear in electrical substations, energy plants, port terminals, platforms, and other energy facilities, -comparison of the current scheme with the actual state of power switchgear (circuit breakers, disconnectors, safety relays, measurement instruments, converters, inverters, etc.),-checking internal wiring of the power supply cabinets, control cabinets, medium voltage blocks, etc.,-checking external wiring between cabinets and consumers/loads (motors, sensors, transformers, actuators, pumps, generators, etc.),-under-voltage testing and checking the functionality of devices in local/remote control,-testing various sensors and sensor reading check on SCADA (solenoid valves, PTC, PT100 probes, inductive sensors)-transmission ratio testing and polarity check of current and voltage transformers, rotary field check,-high voltage cable insulation testing,-setting parameters in control relays (differential current, overload current, short circuit current, etc),validation,-quality control of the tested system,-collaboration with other stakeholders on the projects (project managers, electrical designers, construction site boss, supervision and control department),-preparation of commissioning and test protocols,-preparation of declaration of conformity.