President Francois Hollande ousted the pro-nuclear boss of France's main power utility EDF on Wednesday, replacing him with the head of defence electronics firm Thales a day after a new pro-renewables policy became law.
Outgoing Chairman and Chief Executive Henri Proglio had been seeking to renew a mandate that expires next month.
But his pro-nuclear views and status as a 2009 appointee of conservative former president Nicolas Sarkozy sat uncomfortably with the policy of Hollande's Socialist administration, which pushed through a new law on Wednesday that caps nuclear production at the current level.