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Ageing Management and Plant Life Management

Investments in nuclear energy can be valorized only by a subsequent, efficient and long-term operation. Plant Life Management (PLiM) therefore represents a sophisticated system that cares for complex technologies of various types.

Our services are focused on the implementation of the VVER-type NPP life cycle management program to ensure long-term operation beyond the original design lifetime. We implement projects for local and foreign operators and ensure the documentation for the power plants according to the appropriate legislation (in the operator’s country and European countries).

We deal with aging management problems, are able to extend the lifetime of the equipment over a long term, and provide aging management for specific devices; we are the authors of several certified programs and methodologies. In projects linked to management and lifetime assessment, we represent the Czech Republic in the IAEA, NEA - OECD and the EU.

Areas of program implementation include the maintenance of a database of Design Bases, controlled aging programs and operational controls, risk assessments of pressure caused by thermal shocks, and thermohydraulic analyses.

Our services

  • Design Bases – Replenishing, maintaining and updating databases
  • Creation of evidence-based documentation in accordance with the required normative technical documentation (NTD)
  • Assessment of device strength and lifetime, including device condition prediction for dominant degradation mechanisms
  • Equipment qualification
  • Computations of the device response to operating conditions using a finite element method (statics, heat conduction, fracture mechanics and dynamics, including seismicity and rapid processes, such as the swirling of torn pipeline systems)
  • Editing and designing management programs (lifetime management program, controlled aging programs)
  • Assesment of risks caused by pressure-thermal shocks
  • Thermohydraulic analysis for strength analyses
  • Design of supporting database applications
  • Implementation of technical and economic studies of energy equipment
  • Construction and production of necessary experimental devices
Matupulator for NDT diagnognostics of materials
Workstation for NPP machinery strength and lifetime calculations
Hot cell equipment
Qualification of NPP´s components and equipment
Workplace for Qualification of NPP´s components and equipment
Ultrasonic testing of welds

Our laboratories

  • For environmental qualification
  • Cobalt irradiators
  • Monitoring properties and characteristics of equipment materials


  • Instron universal blasting machines
    Shuttle hammers
  • Instrument hardness tests
  • Measurement of dimensions
  • Microscopic analysis of broken bodies.


  • Autoclaves for evaluation of materials under operating conditions
  • Light scanning electron microscopes
  • Hot and semi-hot cells for the evaluation of the properties of irradiated / radioactive materials



Division of Integrity and Engineering Engineering

  • Address:  ÚJV Řež, a. s., Hlavní 130, Řež, 250 68 Husinec, Czech Republic
  • Phone: +420 266 173 670
  • Fax: +420 220 940 519
  • E-mail:
Our services include legislative and operational support for all phases of the construction, operation and decommissioning of nuclear facilities. Our partners are investors, operators and state supervisors.