Slovak utility Slovenske Elektrarne is to begin power commissioning procedures at the Mochovce-3 pressurised water reactor unit after a successful physical startup earlier this month.
The company said in a statement that the power level of the Russia-designed VVER-440 is expected to be increased to 5% and this will be followed by a round of testing.
The power level will then be gradually increased to 100% of the nominal reactor output and testing will continue at various stages of the process.
According to the statement, once the power level is at 20%, the plant will be connected to the national grid to produce its first electricity.