Energy Safety Group and ZAT a.s. RRCS Modernization Project at Kozloduy NPP Reaches the Final Stage: Another Step Towards VVER Technology Diversification
Today, the issue of diversifying the supply of equipment for the nuclear power industry is no longer viewed solely as competition between manufacturers. It is directly linked to the operational resilience of nuclear power stations, the security of supply chains and the reduction of technological dependence on a single manufacturer in mission-critical systems.
Long before the full-scale invasion, Energy Safety Group, together with its Czech partners, began developing and implementing European technological solutions for safety-critical systems at NPPs. The contract to modernise the RRCS systems of power units 5 and 6 at the Kozloduy NPP was signed back in 2022, following a successful bid in an international tender announced before the start of the full-scale invasion. For our company, this project was a logical continuation of the strategy established from the very inception of the Energy Safety Group — the development of European technological solutions for the nuclear power industry and the gradual reduction of dependence on russian equipment in key safety systems.
In 2025, the project entered its practical implementation phase: equipment deliveries and installation work began at the Kozloduy NPP site. Today, installation has been successfully completed at both power units, and the teams from Energy Safety Group and ZAT a.s. are moving on to the final stage of the project, namely pilot operation, in accordance with the project schedule.
“The fact that the project to modernise the RRCS systems at the Kozloduy NPP is nearing completion is a significant achievement resulting from many years of work by our teams and partners. From the outset of Energy Safety Group’s operations, we identified the development of European solutions for critical nuclear power plant systems as one of our strategic priorities. Today, we are seeing the practical results of this work. Such projects strengthen the technological independence of NPP operators, expand opportunities for international cooperation and shape a new model for the development of supply chains for VVER technology. “We have received very positive feedback from the end-user regarding the preliminary tests; all adjustments and specific requirements of the Kozloduy NPP’s engineering services have been met,” comments Vadym Ivanov, CEO of Energy Safety Group.
For the Energy Safety Group, this project has significance that extends far beyond the modernisation of a single system at a specific power unit. It demonstrates that the diversification of critical technologies for VVER reactors has already become a practical reality. Every successfully implemented project of this calibre strengthens the resilience of the European nuclear power sector, creates new opportunities for international industrial cooperation and reduces the risks associated with monopolistic dependence in strategically important segments of the industry.
