On 10 July 2017, Hulot said on RTL Radio that France may close up to 17 nuclear reactors by 2025 in a new plan to reduce its share of nuclear power. Liberal think-tank Institut Montaigne released a report stating that the plan to convert from nuclear energy to wind and solar will cost €217 billion by 2035. In 2016, France's Court of Audit estimated that prolonging the lifespan of France's nuclear reactors would cost €100 billion. France currently derives 75 percent of its electricity from nuclear power.