+ 359 2 4748 800 info@gcr.bg

Analyses, management and design

Solution for the energy industry

years of history

long-term experts with deep expertise

completed projects

ongoing projects

GCR Sectors


Nuclear Energy


GCR was founded as an engineering service provider to the nuclear energy industry back in 1995. Today, the core competencies of our team remain focused on the sector. We have experience and expertise throughout the lifecycle of a nuclear power plant (NPP).

Conventional energy


Over the years GCR has expanded into conventional and renewable energy. Our team has experience and expertise in supporting thermal, hydroelectric and renewable power plants.

energy solutions
for busines


For industrial-scale consumers of electricity, heat, and/or cooling, we offer modern solutions for optimizing their energy balance.

GCR Services


Safety management

Turnkey construction

Design and Engineering

Consulting services

GCR Team


We rely on a core team of proven engineering professionals with significant experience, deep expertise and a breadth of knowledge across adjacent disciplines. Our team has extensive domain knowledge across the spectrum of power generation technologies – including nuclear, conventional (thermal), hydroelectric, and renewable. Functionally, our experts are specialized in the core disciplines of mechanical and process engineering, civil and structural engineering, electrical and instrumentation and control engineering. Our team is experienced in applying state-of-the-art specialized methods and tools (software) for finite element analysis, thermal-hydraulic analysis and probabilistic safety assessment as needed in our projects. Outside of our core team, we maintain a wide network of specialists from academia, from government and other private institutions. We tap on our network on an as-needed basis to supplement our project teams and provide the best possible expertise to our clients for each particular project.

GCR Projects


Update of Level 1 Probabilistic Safety Analysis with expansion of the scope of analysis for Units 5 and 6 of Kozlooduy NPP

Update of Level 1 Probabilistic Safety Analysis with expansion of the scope of analysis for Units 5 and 6 of Kozlooduy NPP

Delivery and installation of one set of EMPS for the axial bearing of HG-1 at “Momina Klisura” HPP

Delivery and installation of one set of EMPS for the axial bearing of HG-1 at “Momina Klisura” HPP

Expertise of selected reports from stage 2 of the project for extension of the operation period of Unit 6 of Kozloduy NPP, related to justification of the possibility for safe operation of the reactor vessel and part of the main building structures

Expertise of selected reports from stage 2 of the project for extension of the operation period of Unit 6 of Kozloduy NPP, related to justification of the possibility for safe operation of the reactor vessel and part of the main building structures

Replacement of pumps KV01MP01 / 02/03, pump HS55MP03, pumps KV30MP01 / 02 and gas blowers RD05WF01 / 02 in SFSF

Replacement of pumps KV01MP01 / 02/03, pump HS55MP03, pumps KV30MP01 / 02 and gas blowers RD05WF01 / 02 in SFSF

Design for replacement of hydraulic shock absorber 5 TQ40J01

Design for replacement of hydraulic shock absorber 5 TQ40J01

Consultancy services for El Dabaa Nuclear Power Plant Project in Egypt

Consultancy services for El Dabaa Nuclear Power Plant Project in Egypt

Project for repair of steam turbine PR-8,8-4,1 / 1,1 / 0,4 and its coupling to a new generator type T-12-2UZ

Project for repair of steam turbine PR-8,8-4,1 / 1,1 / 0,4 and its coupling to a new generator type T-12-2UZ

Reconstruction of SS to 9_10GQ

Reconstruction of SS to 9_10GQ

Modernization of turbine unit TG3 with new back-pressure turbine at Sofia East TPP

Modernization of turbine unit TG3 with new back-pressure turbine at Sofia East TPP

Energy efficiency measures of the Administrative building “Coastal pumping station”- 20 KV

Energy efficiency measures of the Administrative building “Coastal pumping station”- 20 KV

Reconstruction of the water supply and sewerage system (WS) in the Central Alarm Station (CAS)

Reconstruction of the water supply and sewerage system (WS) in the Central Alarm Station (CAS)

Engineering Services and Support of QA: Application and enhancement of TRACE model

Engineering Services and Support of QA: Application and enhancement of TRACE model