Switch to the Axpo Group website.

Go to Axpo Group website.

KKB 1: Turbine shut down for repair work

At midday today, the output of unit 1 at the Beznau nuclear power plant (KKB) had to be temporarily reduced by 50%. The reason was an oil leak in a turbine in the non-nuclear part of the power plant. The plant is operating stably with reduced output. Investigations into the cause and necessary repair measures have been initiated. The Swiss Federal Nuclear Safety Inspectorate ENSI has been informed. 

At around noon today, an oil leak was detected in the turbine inlet valves in unit 1 in the non-nuclear part of the plant. The affected turbine was then stopped manually and the output of unit 1 of the Beznau nuclear power plant was temporarily reduced by 50%. Steam discharges are visible above the machine hall of unit 1. There is no danger to people or the environment.

The Beznau nuclear power plant immediately informed the authorities about the case and initiated the necessary steps to clarify the cause and carry out the necessary repairs.

About Axpo: Axpo is Switzerland's largest producer of renewable energy and an international leader in energy trading and the marketing of solar and wind power. 5000 employees combine experience and expertise with a passion for innovation. Axpo develops innovative energy solutions for its customers based on state-of-the-art technologies in 30 countries in Europe, USA and Asia. We open up perspectives and generate new impulses for a life full of energy.

Axpo Holding AG

Corporate Communications


T 0800 44 11 00 (Schweiz) 
T +41 56 200 41 10 (International)

(08.00 - 17.30)

More media releases

Show all

Ad hoc announcement 19.01.2024

Axpo Holding AG General Meeting – Shareholders forego a dividend

Read more

Ad hoc announcement 08.12.2022

A year marked by unprecedented turmoil on energy markets

Read more

Ad hoc announcement 11.05.2022

Axpo issues EUR 600 million sustainability-linked Schuldschein loan

Read more