French power company and nuclear operator EDF, which is being nationalised, issued its fourth profit warning of the year on Thursday as it fell to a loss in the first half on lower nuclear output.

EDF said it now expects reduced electricity output to lower its 2022 core earnings by €24bn ($24.5bn), increasing a forecast of €18.5bn made just two months ago.

Chief executive officer Jean-Bernard Levy said the figures “reflect the difficulties encountered in nuclear generation in France.