Japanese utility Kyushu Electric Power today announced plans to close the 890MW Sendai No.1 nuclear reactor on 14 June for a turnaround for around three months.
Kyushu will shut the No.1 reactor at Sendai in southern Japan's Kagoshima prefecture on 14 June for regular maintenance works. The reactor is expected to resume test generation in the final phase of the turnaround on 29 August, according to a power plant operational status notice by the Japan Electric Power Exchange. Kyushu aims to complete the entire turnaround process on 25 September.
The absence of the Sendai No.1 reactor will not adversely affect Kyushu's electricity supply, even during the peak summer demand season that typically runs over July-September. The company plans to continue operating its three other reactors during the summer period.
The Kyushu area is anticipated to secure more than a 13pc surplus in electricity supply during July-September, well above the minimum 3pc reserve level required for any emergencies such as an unexpected shutdown of a power plant and a surge in peak electricity demand.
But Kyushu's operational nuclear capacity in July-September is forecast at an average of 3,388MW, down by 562MW compared with the same period in 2023. The potential fall in nuclear output could theoretically increase LNG demand by around 162,200t, around 2-3 standard sized cargoes, in July-September against a year earlier, assuming an average gas-fired generation efficiency of 50pc.