INPRO is an international project to help ensure that nuclear energy is available to contribute in a sustainable manner to meeting the energy needs of the 21st century. This publication is part of Phase 2 of INPRO and provides a summary of seven nuclear energy assessment (NESA) studies that document the application of the INPRO methodology in national nuclear power programmes, in specific designs of nuclear reactors in selected INPRO areas such as economics or safety, or in innovative nuclear energy systems to be deployed in the future.