Electricité de France (EdF), the French National Electric Power Company, has a large nuclear program under construction. Every possibility of providing heat from French pressurized water reactor nuclear plants has been examined. Due to the characteristics of heat needs in France, the necessity of maintaining the standardization of nuclear units as much as possible, and the possibility of tapping off steam from steam generators within 10% of the total thermal power of the reactors without modifying the constraints of operational control, EdF has decided to propose to eventual heat customers a technical solution based on tapping off heat from steam generators at the top of the steam cycle.