What part of do you come from? drug.checker Critics have faulted the sheer ambition behind the1,650-megawatt (MW) EPR, which is twice as powerful as currentreactors. Conceived by French and German engineers after the1986 Chernobyl disaster, it is endowed with a double containmentbuilding, a compartment isolating the molten core, six back-updiesel generators and four back-up cooling systems.