Switzerland’s four commercial nuclear power plant units produced 23,467 GWh (net) of electricity in 2023, underlining their role as a reliable pillar of energy production, the nuclear power operators’ association Swissnuclear* said.

The four units – at the Beznau, Gösgen and Leibstadt nuclear station sites – were all in continuous operation apart from scheduled annual outages during the summer. Beznau-1 had the highest availability at 95.6%. Beznau-2 was 89.3%, Gösgen 92% and Leibstadt 91.5%.

The single unit Leibstadt produced 9,677 GWh (net), its third highest production figure. Beznau-1 produced 2,937, GWh (net), Beznau-2 produced 2,804 Gwh (Net) and Gösgen produced 8,049 GWh (net).

Swissnuclear said Leibstadt alone produced enough electricity for two million households.

Swissnuclear said extensive investment and modernisation of Switzerland’s nuclear fleet means it will continue to make a decisive contribution to safeguarding the country’s future power supply.