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Renewable Energy

The renewable energy sector is concerned with the efficiency of its use and with its network integration.

Our services:

  • Designing systems for highly efficient combined heat and power production from biogas or pyrolysis gases (biogas from sewage treatment plants, landfills, biogas stations) based on high-temperature fuel cells
  • Designing systems for the treatment of gases and the separation of hydrogen from the synthesis gas mixture
  • Expertise in the use of solar concentrating power plants as a source of high potential heat for high-temperature water electrolysis
  • Expertise in the design of energy storage systems (power stabilization - hybridization, etc.)

Our R&D projects

The system of storing surplus energy from photovoltaic panels into hydrogen in the ÚJV Řež area consists of a photovoltaic power plant, PEM (hydrogen - electricity), a compressed hydrogen storage tank, a PEM fuel cell (hydrogen - electricity) and a connection to the distribution network.

Scheme of interconnection of photovoltaic panels and hydrogen storage system:


  • For small, medium and large businesses that need a backup power supply;
    • Suitable for applications without access to electricity and natural gas;
  • For all who want to run buildings, island-mode businesses (independent of the power grid);
  • For all who want to use more efficiently and stabilize renewable energy;
  • For all who need an ecological source of high purity hydrogen;
  • for all who want to produce heat and electricity based on micro / cogeneration units with high efficiency (suitable for households, residential buildings or commercial buildings and businesses).

Benefits of system or individual components:

  • Flexible and efficient heat and power generation from hydrogen / natural gas based on micro-cogeneration / cogeneration units;
  • Low-emission equipment -> local improvement of air quality (reduction of emissions, dust and noise);
  • Reducing the cost of the primary energy source;
  • Longterm storage of energy;
  • Backup system in the event of a power failure;
  • In the case of an "island system", it is independent of the distribution grid;
  • The possibility to co-finance the project from public sources




Division of Nuclear Safety and Reliability

  • Address:  ÚJV Řež, a. s., Hlavní 130, Řež, 250 68 Husinec, Czech Republic
  • Phone: +420 266 173 558     
  • Fax: +420 220 941 029
  • E-mail:


    • Address: ÚJV Řež, a. s., Na Žertvách 2247/29, 180 00 Praha 8 - Libeň, Czech Republic 
    • Phone: +420 227 133 333
    • Fax: +420 227 133 340
    • E-mail:



We provide comprehensive services focused on applied research, development and innovation, particularly in the field of peaceful use of nuclear energy and sources of ionizing radiation. Projects are also implemented under grant programs and commercial contracts.